Micronas MSP34X2G Multistandard sound processor family with dolby surround pro logic Datasheet

PRELIMINARY DATA SHEET
MICRONAS
Edition May 22, 2000
6251-520-1PD
MSP34x2G
Multistandard
Sound Processor Family
with Dolby Surround
Pro Logic
MICRONAS
MSP 34x2G
PRELIMINARY DATA SHEET
Contents
Page
Section
Title
6
6
7
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8
1.
1.1.
1.2.
1.3.
1.4.
Introduction
Features
Features of the MSP 34x2G Family
MSP 34x2G Version List
MSP 34x2G Versions and their Application Fields
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2.
2.1.
2.2.
2.2.1.
2.2.2.
2.2.3.
2.2.4.
2.2.5.
2.3.
2.4.
2.5.
2.5.1.
2.5.2.
2.5.3.
2.5.4.
2.6.
2.6.1.
2.6.1.1.
2.6.1.2.
2.6.2.
2.6.2.1.
2.6.2.2.
2.6.2.3.
2.6.2.4.
2.6.3.
2.6.4.
2.6.4.1.
2.6.4.2.
2.6.4.3.
2.6.4.4.
2.6.5.
2.6.6.
2.6.7.
2.7.
2.7.1.
2.7.2.
2.8.
2.9.
2.10.
2.11.
Functional Description
Architecture of the MSP 34x2G Family
Sound IF Processing
Analog Sound IF Input
Demodulator: Standards and Features
Preprocessing of Demodulator Signals
Automatic Sound Select
Manual Mode
Preprocessing for SCART and I2S Input Signals
Source Selection and Output Channel Matrix
Audio Baseband Processing
Automatic Volume Correction (AVC)
Loudspeaker and Headphone Outputs
Subwoofer Output
Quasi-Peak Detector
Surround Processing
Output Configuration
HP/CS Switch
Channel Configuration
Surround Processing Mode
Decoder Matrix
Surround Reproduction
Center Modes
Useful Combinations of Surround Processing Modes
Examples
Application Tips for using 3D-PANORAMA
Sweet Spot
Clipping
Loudspeaker Requirements
Cabinet Requirements
Input and Output Levels in Dolby Surround Pro Logic Mode
Subwoofer in Surround Mode
Equalizer in Surround Mode
SCART Signal Routing
SCART DSP In and SCART Out Select
Stand-by Mode
I2S Bus Interface
ADR Bus Interface
Digital Control I/O Pins and Status Change Indication
Clock PLL Oscillator and Crystal Specifications
2
Micronas
PRELIMINARY DATA SHEET
MSP 34x2G
Contents, continued
Page
Section
Title
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3.
3.1.
3.1.1.
3.1.2.
3.1.3.
3.1.4.
3.1.5.
3.1.5.1.
3.1.5.2.
3.1.5.3.
3.1.5.4.
3.2.
3.3.
3.3.1.
3.3.2.
3.3.2.1.
3.3.2.2.
3.3.2.3.
3.3.2.4.
3.3.2.5.
3.3.2.6.
3.3.2.7.
3.4.
3.5.
3.5.1.
3.5.2.
3.5.3.
3.5.4.
3.5.5.
3.5.6.
3.5.7.
3.5.8.
3.5.9.
3.5.10.
Control Interface
I2C Bus Interface
Device and Subaddresses
Internal Hardware Error Handling
Description of CONTROL Register
Protocol Description
Proposals for General MSP 34x2G I2C Telegrams
Symbols
Write Telegrams
Read Telegrams
Examples
Start-Up Sequence: Power-Up and I2C Controlling
MSP 34x2G Programming Interface
User Registers Overview
Description of User Registers
STANDARD SELECT Register
Refresh of STANDARD SELECT Register
STANDARD RESULT Register
Write Registers on I2C Subaddress 10hex
Read Registers on I2C Subaddress 11hex
Write Registers on I2C Subaddress 12hex
Read Registers on I2C Subaddress 13hex
Programming Tips
Examples of Minimum Initialization Codes
SCART1 Input to Loudspeaker in Stereo Sound
B/G-FM (A2 or NICAM)
BTSC-Stereo
BTSC-SAP with SAP at Loudspeaker Channel
FM-Stereo Radio
Automatic Standard Detection
Dolby Surround Pro Logic Example
Virtual Dolby Surround Example
Noise Sequencer for Dolby Pro Logic
Software Flow for Interrupt driven STATUS Check
50
50
51
54
57
60
62
62
63
63
63
64
4.
4.1.
4.2.
4.3.
4.4.
4.5.
4.6.
4.6.1.
4.6.2.
4.6.2.1.
4.6.2.2.
4.6.2.3.
Specifications
Outline Dimensions
Pin Connections and Short Descriptions
Pin Descriptions
Pin Configurations
Pin Circuits
Electrical Characteristics
Absolute Maximum Ratings
Recommended Operating Conditions (TA = 0 to 70 °C)
General Recommended Operating Conditions
Analog Input and Output Recommendations
Recommendations for Analog Sound IF Input Signal
Micronas
3
MSP 34x2G
PRELIMINARY DATA SHEET
Contents, continued
Page
Section
Title
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4.6.2.4.
4.6.3.
4.6.3.1.
4.6.3.2.
4.6.3.3.
4.6.3.4.
4.6.3.5.
4.6.3.6.
4.6.3.7.
4.6.3.8.
4.6.3.9.
4.6.3.10.
Crystal Recommendations
Characteristics
General Characteristics
Digital Inputs, Digital Outputs
Reset Input and Power-Up
I2C-Bus Characteristics
I2S-Bus Characteristics
Analog Baseband Inputs and Outputs, AGNDC
Sound IF Inputs
Power Supply Rejection
Analog Performance
Sound Standard Dependent Characteristics
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84
84
5.
5.1.
5.2.
5.3.
5.4.
5.5.
5.6.
Appendix A: Overview of TV-Sound Standards
NICAM 728
A2-Systems
BTSC-Sound System
Japanese FM Stereo System (EIA-J)
FM Satellite Sound
FM-Stereo Radio
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95
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96
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6.
6.1.
6.2.
6.3.
6.3.1.
6.3.1.1.
6.3.1.2.
6.3.2.
6.3.3.
6.3.4.
6.3.5.
6.3.6.
6.3.7.
6.4.
6.4.1.
6.4.2.
6.4.3.
6.4.4.
6.4.5.
6.4.6.
6.4.7.
6.5.
6.5.1.
6.5.2.
6.5.3.
6.5.4.
Appendix B: Manual/Compatibility Mode
Demodulator Write and Read Registers for Manual/Compatibility Mode
DSP Write and Read Registers for Manual/Compatibility Mode
Manual/Compatibility Mode: Description of Demodulator Write Registers
Automatic Switching between NICAM and Analog Sound
Function in Automatic Sound Select Mode
Function in Manual Mode
A2 Threshold
Carrier-Mute Threshold
Register AD_CV
Register MODE_REG
FIR-Parameter, Registers FIR1 and FIR2
DCO-Registers
Manual/Compatibility Mode: Description of Demodulator Read Registers
NICAM Mode Control/Additional Data Bits Register
Additional Data Bits Register
CIB Bits Register
NICAM Error Rate Register
PLL_CAPS Readback Register
AGC_GAIN Readback Register
Automatic Search Function for FM-Carrier Detection in Satellite Mode
Manual/Compatibility Mode: Description of DSP Write Registers
Additional Channel Matrix Modes
Volume Modes of SCART1/2 Outputs
FM Fixed Deemphasis
FM Adaptive Deemphasis
4
Micronas
PRELIMINARY DATA SHEET
MSP 34x2G
Contents, continued
Page
Section
Title
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6.5.5.
6.5.6.
6.5.7.
6.6.
6.6.1.
6.6.2.
6.7.
6.7.1.
6.7.2.
6.8.
6.9.
NICAM Deemphasis
Identification Mode for A2 Stereo Systems
FM DC Notch
Manual/Compatibility Mode: Description of DSP Read Registers
Stereo Detection Register for A2 Stereo Systems
DC Level Register
Demodulator Source Channels in Manual Mode
Terrestric Sound Standards
SAT Sound Standards
Exclusions of Audio Baseband Features
Compatibility Restrictions to MSP 34x0D
101
101
102
7.
7.1.
7.2.
Appendix D: Application Information
Phase Relationship of Analog Outputs
Application Circuit
104
8.
Appendix E: MSP 34x2G Version History
104
9.
Data Sheet History
License Notice:
1)
“Dolby”, “Virtual Dolby Surround”, and the double-D Symbol are trademarks of Dolby Laboratories.
Supply of this implementation of Dolby Technology does not convey a license nor imply a right under any patent, or
any other industrial or intellectual property right of Dolby Laboratories, to use this implementation in any finished
end-user or ready-to-use final product. Companies planning to use this implementation in products must obtain a
license from Dolby Laboratories Licensing Corporation before designing such products.
Micronas
5
MSP 34x2G
PRELIMINARY DATA SHEET
Multistandard Sound Processor Family with Dolby
Surround Pro Logic
The hardware and software description in this document is valid for the MSP 34x2G version A1 and
following versions.
Surround sound can be reproduced to a certain extent
with only two loudspeakers. The MSP 3452G includes
a Micronas virtualizer algorithm which has been
approved by the Dolby1) Laboratories for compliance
with the "Virtual Dolby Surround" technology. This
algorithm is called “3D-PANORAMA” and enables convincing acoustical sensations. Virtual Dolby Surround
can be processed together with headphone signals.
1. Introduction
The MSP 34x2G family of single-chip Multistandard
Sound Processors covers the sound processing of all
analog TV-Standards worldwide, as well as the NICAM
digital sound standards. The full TV sound processing,
starting with analog sound IF signal-in, down to processed analog AF-out, is performed on a single chip.
The ICs are produced in submicron CMOS technology.
The MSP 34x2G is available in the following packages:
PSDIP64, PQFP80, and PLQFP64.
1.1. Features
– All MSP 3450G features
The family’s latest member, the MSP 3452G has all
functions of the MSP 3450G with the addition of Dolby
Surround Pro Logic and Virtual Dolby Surround sound
processing (See License Notice on page 5). The
MSP 3452G forms a superset of the functions of the
MSP 3451G, which contains the virtualizer algorithms
but does not contain any multi-channel processing.
– All MSP 3451G features as there are
- the 3D-PANORAMA virtualizer algorithm
- the PANORAMA virtualizer algorithm
- Noise Generator
Additional output pins DACM_C and DACM_S have
been defined which deliver the Dolby Surround Pro
Logic processed Center and Surround channels.
When DACM_C and DACM_S are active, the headphone outputs DACA_L and DACA_R are muted and
vice versa. Simultaneous processing of Headphone
signals and Dolby Surround Pro Logic is not possible.
– Additional pins for Center and Surround channels
ADC
Sound IF2
Demodulator
I2S1
SCART1
SCART2
SCART3
– Virtualizer able to work with 2 or 3 front loudspeakers
– Pin and software compatible to MSP 34x0G
Loudspeaker
Sound
Processing
Preprocessing
Prescale
I2S2
– Various other multichannel sound modes
Source Select
Sound IF1
– Dolby Surround Pro Logic processing
Headphone/
Surround
Sound
Processing
DAC
Loudspeaker
Subwoofer
Center
Surround
DAC
Headphone
I2S
DAC
SCART
DSP
Input
Select
SCART1
ADC
SCART4
Prescale
DAC
SCART
Output
Select
MONO
SCART2
Fig. 1–1: Block diagram of the MSP 34x2G
6
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
1.2. Features of the MSP 34x2G Family
Feature
3402
3412
3422
3442
3452
Dolby Surround Pro Logic
X
X
X
X
X
3D-PANORAMA virtualizer (approved by Dolby Laboratories) with noise generator
X
X
X
X
X
PANORAMA virtualizer algorithm
X
X
X
X
X
Standard Selection with single I2C transmission
X
X
X
X
X
Automatic Standard Detection of terrestrial TV standards
X
X
X
X
X
Automatic Sound Selection (mono/stereo/bilingual)
X
X
X
X
X
Two selectable sound IF (SIF) inputs
X
X
X
X
X
Automatic Carrier Mute function
X
X
X
X
X
Interrupt output programmable (indicating status change)
X
X
X
X
X
Loudspeaker / Headphone channel with volume, balance, bass, treble, loudness
X
X
X
X
X
AVC: Automatic Volume Correction
X
X
X
X
X
Subwoofer output with programmable low-pass and complementary high-pass filter
X
X
X
X
X
5-band graphic equalizer for loudspeaker channel
X
X
X
X
X
Spatial effect for loudspeaker channel
X
X
X
X
X
Four Stereo SCART (line) inputs, one Mono input; two Stereo SCART outputs
X
X
X
X
X
Complete SCART in/out switching matrix
X
X
X
X
X
Two I2S inputs; one I2S output
X
X
X
X
X
All analog FM-Stereo A2 and satellite standards; AM-SECAM L standard
X
X
X
X
X
Simultaneous demodulation of (very) high-deviation FM-Mono and NICAM
Adaptive deemphasis for satellite (Wegener-Panda, acc. to ASTRA specification)
X
X
X
ASTRA Digital Radio (ADR) together with DRP 3510A
X
X
X
X
X
All NICAM standards
Demodulation of the BTSC multiplex signal and the SAP channel
X
Alignment free digital DBX noise reduction for BTSC Stereo and SAP
X
X
X
X
Alignment free digital Micronas Noise Reduction (MNR) for BTSC Stereo and SAP
X
BTSC stereo separation (MSP 3422/42G also EIA-J) significantly better than spec.
X
X
X
SAP and stereo detection for BTSC system
X
X
X
X
X
X
Alignment-free Japanese standard EIA-J
X
X
X
Demodulation of the FM-Radio multiplex signal
X
X
X
Korean FM-Stereo A2 standard
X
X
1.3. MSP 34x2G Version List
Version
Status
Description
MSP 3402G
not confirmed
FM Stereo (A2) Version
MSP 3412G
planned
NICAM and FM Stereo (A2) Version
MSP 3422G
not confirmed
NTSC Version (A2 Korea, BTSC with Micronas Noise Reduction (MNR), and Japanese EIA-J system)
MSP 3442G
not confirmed
NTSC Version (A2 Korea, BTSC with DBX noise reduction, and Japanese EIA-J system)
MSP 3452G
available
Global Version (all sound standards)
Micronas
7
MSP 34x2G
PRELIMINARY DATA SHEET
1.4. MSP 34x2G Versions and their Application Fields
Table 1–1 provides an overview of TV sound standards
that can be processed by the MSP 34x2G family. In
addition, the MSP 34x2G is able to handle the terrestrial FM-Radio standard. With the MSP 34x2G, a com-
plete multimedia receiver covering all TV sound standards together with terrestrial and satellite radio sound
can be built; even ASTRA Digital Radio can be processed (with a DRP 3510A coprocessor).
Table 1–1: TV Stereo Sound Standards covered by the MSP 34x2G IC Family (details see Appendix A)
TVSystem
3402
MSP Version
Position of Sound
Carrier /MHz
Sound
Modulation
Color
System
Broadcast e.g. in:
5.5/5.7421875
FM-Stereo (A2)
PAL
Germany
5.5/5.85
FM-Mono/NICAM
PAL
Scandinavia, Spain
L
6.5/5.85
AM-Mono/NICAM
SECAM-L
France
I
6.0/6.552
FM-Mono/NICAM
PAL
UK, Hong Kong
6.5/6.2578125
FM-Stereo (A2, D/K1)
SECAM-East
Slovak. Rep.
6.5/6.7421875
FM-Stereo (A2, D/K2)
PAL
currently no broadcast
6.5/5.7421875
FM-Stereo (A2, D/K3)
SECAM-East
Poland
6.5/5.85
FM-Mono/NICAM (D/K, NICAM)
PAL
China, Hungary
6.5
7.02/7.2
7.38/7.56
etc.
FM-Mono
FM-Stereo
PAL
Europe Sat.
ASTRA
4.5/4.724212
FM-Stereo (A2)
NTSC
Korea
4.5
FM-FM (EIA-J)
NTSC
Japan
4.5
BTSC-Stereo + SAP
NTSC, PAL
USA, Argentina
10.7
FM-Stereo Radio
3412
3402
B/G
3452
D/K
3422, 3442
3402
Satellite
M/N
FM-Radio
ASTRA Digital Radio (ADR)
with DRP 3510A
33 34 39 MHz
USA, Europe
4.5 9 MHz
Loudspeaker
SAW Filter
Subwoofer
Sound
IF
Mixer
Tuner
Center
Mono
Vision
Demodulator
SCART1
SCART
Inputs
Composite
Video
SCART2
1
MSP 34x2G
2
Headphone
2
2
2
2
2
SCART3
SCART4
Surround
ADR
SCART1
SCART2
SCART
Outputs
I2S2
ADR
Decoder
DRP 3510A
Fig. 1–2: Typical MSP 34x2G application
8
Micronas
ANA_IN2+
AGC
A
D
DEMODULATOR
(incl. Carrier Mute)
Deemphasis:
50/75 µs
DBX
Panda1
FM/AM
Prescale
Configurable Output Section
Loudspeaker
Channel
Matrix
FM/AM
Stereo or A/B
(0Ehex)
ADR-Bus
Interface
Decoded
Standards:
− NICAM
− A2
− AM
− BTSC
− EIA-J
− SAT
− FM-Radio
NICAM
Deemphasis
J17
(08hex)
AVC
Bass/
Treble
or
Equalize
(29hex)
Loudness
Σ
(02hex)
(03hex)
(04hex)
0.5
Stereo or A
Complementary
Highpass
Spatial
Effects
Balance
(20hex)
(05hex)
(01hex)
Lowpass
Beeper
Prescale
Stereo or B
(2Dhex)
(14hex)
D
DACM_L
Volume
DACM_R
Level
Adjust
A
DACM_SUB
(00hex)
(2Chex)
(10hex)
Standard
and Sound
Detection
DACM_C
I2 C
Read
Register
DACM_S
I2S1
Interface
Prescale
(16hex)
I2S1
I2 S
I2S_DA_IN2
Interface
Prescale
Source Select
I2 S
I2S_DA_IN1
Volume
Headphone
Channel
Matrix
Bass/
Treble
(32hex)
(09hex)
I2S
Channel
Matrix
Σ
Loudness
D
PRELIMINARY DATA SHEET
ANA_IN1+
2. Functional Description
Micronas
Automatic
Sound Select
Standard Selection
DACA_L
Balance
A
(33hex)
I2S
Interface
(30hex)
(06hex)
DACA_R
I2S_DA_OUT
(0Bhex)
(12hex)
Quasi-Peak
Channel
Matrix
Quasi-Peak
Detector
I2C
Read
Register
(19hex)
(1Ahex)
(13hex)
SC1_IN_L
SC1_IN_R
SC2_IN_L
SC3_IN_L
D
Prescale
(0Dhex)
SCART1
Channel
Matrix
(0Ahex)
SCART2
Channel
Matrix
(41hex)
Volume
D
SCART1_L/R
A
(07hex)
Volume
SC1_OUT_L
D
SCART2_L/R
A
(40hex)
SC1_OUT_R
SC2_OUT_L
SC2_OUT_R
SC3_IN_R
SC4_IN_L
SC4_IN_R
MONO_IN
(13 hex)
Fig. 2–1: Signal flow block diagram of the MSP 3452G without any surround processing: Output Configuration (register 48hex) = 0000hex
9
MSP 34x2G
SC2_IN_R
SCART
A
SCART Output Select
SCART DSP Input Select
(0Chex)
MSP 34x2G
PRELIMINARY DATA SHEET
Configurable Output Section
Loudspeaker
Channel
Matrix
Virtualizer
AVC
(29hex)
(08hex)
Bass/
Treble
or
Equalize
Σ
Loudness
(02hex)
(03hex)
(04hex)
0.5
Balance
(20hex)
(01hex)
Lowpass
Noise
Generator
Beeper
(2Dhex)
(14hex)
DACM_L
Complementary
Highpass
D
Volume
DACM_R
Level
Adjust
(2Chex)
A
DACM_SUB
(00hex)
DACM_C
DACM_S
Volume
Headphone
Channel
Matrix
Bass/
Treble
Σ
(32hex)
(09hex)
Loudness
DACA_L
D
Balance
A
(33hex)
(30hex)
DACA_R
(06hex)
Fig. 2–2: Output section in virtual mode: Output Configuration (register 48hex) = 0100hex
Configurable Output Section
Loudspeaker
Channel
Matrix
Bass/
Treble
(08hex)
Noise
Generator
Σ
(02hex)
Dolby
Pro Logic
and
optional
Virtualizer
Loudness
(04hex)
Balance
(20hex)
(01hex)
Lowpass
0.5
Beeper
AVC
(2Dhex)
(14hex)
Bass/
Treble
(29hex)
(32hex)
Σ
Loudness
DACM_L
Complementary
Highpass
Complementary
Highpass
D
Volume
DACM_R
Level
Adjust
(2Chex)
A
(00hex)
Volume
DACM_C
D
Balance
A
(33hex)
DACM_SUB
(30hex)
DACM_S
(06hex)
DACA_L
DACA_R
Fig. 2–3: Output section with multi-channel surround: Output Configuration (register 48hex) = 8200hex
10
Micronas
PRELIMINARY DATA SHEET
2.1. Architecture of the MSP 34x2G Family
The block diagrams in Fig. 2–1, Fig. 2–2, and Fig. 2–3
show the signal flow in the MSP 34x2G in three modes
that can be set in the Output Configuration register.
– Standard mode (see Fig. 2–1).
The IC is compatible to the MSP 34x0 family.
– Virtual mode (see Fig. 2–2).
The IC is compatible to the Virtual Dolby MSP 34x1
family.
– Dolby Surround Pro Logic mode (see Fig. 2–3).
The three block diagrams show the features of the
MSP 3452G family member.
Other members of the MSP 34x2G family do not have
the complete set of features: The demodulator handles
only a subset of the standards presented in the
demodulator block; NICAM processing is only possible
in the MSP 3412G and MSP 3452G.
2.2. Sound IF Processing
2.2.1. Analog Sound IF Input
The input pins ANA_IN1+, ANA_IN2+, and ANA_IN−
offer the possibility to connect two different sound IF
(SIF) sources to the MSP 34x2G. The analog-to-digital
conversion of the preselected sound IF signal is done
by an A/D-converter. An analog automatic gain circuit
(AGC) allows a wide range of input levels. The highpass filters formed by the coupling capacitors at pins
ANA_IN1+ and ANA_IN2+ see Section 7.2. “Application Circuit” on page 102 are sufficient in most cases to
suppress video components. Some combinations of
SAW filters and sound IF mixer ICs, however, show
large picture components on their outputs. In this case,
further filtering is recommended.
2.2.2. Demodulator: Standards and Features
The MSP 34x2G is able to demodulate all TV-sound
standards worldwide including the digital NICAM system. Depending on the MSP 34x2G version, the following demodulation modes can be performed:
A2 Systems: Detection and demodulation of two separate FM carriers (FM1 and FM2), demodulation and
evaluation of the identification signal of carrier FM2.
NICAM Systems: Demodulation and decoding of the
NICAM carrier, detection and demodulation of the analog (FM or AM) carrier. For D/K-NICAM, the FM carrier
may have a maximum deviation of 384 kHz.
Very high deviation FM-Mono: Detection and robust
demodulation of one FM carrier with a maximum deviation of 540 kHz.
Micronas
MSP 34x2G
BTSC-Stereo: Detection and FM demodulation of the
aural carrier resulting in the MTS/MPX signal. Detection and evaluation of the pilot carrier, AM demodulation of the (L−R)-carrier and detection of the SAP subcarrier. Processing of DBX noise reduction or
Micronas Noise Reduction (MNR).
BTSC-Mono + SAP: Detection and FM demodulation
of the aural carrier resulting in the MTS/MPX signal.
Detection and evaluation of the pilot carrier, detection
and FM demodulation of the SAP subcarrier. Processing of DBX noise reduction or Micronas Noise Reduction (MNR).
Japan Stereo: Detection and FM demodulation of the
aural carrier resulting in the MPX signal. Demodulation
and evaluation of the identification signal and FM
demodulation of the (L−R)-carrier.
FM-Satellite Sound: Demodulation of one or two FM
carriers. Processing of high-deviation mono or narrow
bandwidth mono, stereo, or bilingual satellite sound
according to the ASTRA specification.
FM-Stereo-Radio: Detection and FM demodulation of
the aural carrier resulting in the MPX signal. Detection
and evaluation of the pilot carrier and AM demodulation of the (L−R)-carrier.
The demodulator blocks of all MSP 34x2G versions
have identical user interfaces. Even completely different systems like the BTSC and NICAM systems are
controlled the same way. Standards are selected by
means of MSP Standard Codes. Automatic processes
handle standard detection and identification without
controller interaction. The key features of the
MSP 34x2G demodulator blocks are
Standard Selection: The controlling of the demodulator is minimized: All parameters, such as tuning frequencies or filter bandwidth, are adjusted automatically by transmitting one single value to the
STANDARD SELECT register. For all standards, specific MSP standard codes are defined.
Automatic Standard Detection: If the TV sound standard is unknown, the MSP 34x2G can automatically
detect the actual standard, switch to that standard, and
respond the actual MSP standard code.
Automatic Carrier Mute: To prevent noise effects or
FM identification problems in the absence of an FM
carrier, the MSP 34x2G offers a configurable carrier
mute feature, which is activated automatically if the TV
sound standard is selected by means of the STANDARD SELECT register. If no FM carrier is detected at
one of the two MSP demodulator channels, the corresponding demodulator output is muted. This is indicated in the STATUS register.
11
MSP 34x2G
2.2.3. Preprocessing of Demodulator Signals
The NICAM signals must be processed by a deemphasis filter and adjusted in level. The analog demodulated signals must be processed by a deemphasis filter, adjusted in level, and dematrixed. The correct
deemphasis filters are already selected by setting the
standard in the STANDARD SELECT register. The
level adjustment has to be done by means of the FM/
AM and NICAM prescale registers. The necessary
dematrix function depends on the selected sound
standard and the actual broadcasted sound mode
(mono, stereo, or bilingual). It can be manually set by
the FM Matrix Mode register or automatically set by
the Automatic Sound Selection.
PRELIMINARY DATA SHEET
– “Stereo or A” channel: Analog or digital mono
sound, stereo if available. In case of bilingual broadcast, it contains language A (on left and right).
– “Stereo or B” channel: Analog or digital mono
sound, stereo if available. In case of bilingual broadcast, it contains language B (on left and right).
Fig. 2–4 and Table 2–2 show the source channel
assignment of the demodulated signals in case of
Automatic Sound Select mode for all sound standards.
Note: The analog primary input channel contains the
signal of the mono FM/AM carrier or the L+R signal of
the MPX carrier. The secondary input channel contains the signal of the second FM carrier, the L−R signal of the MPX carrier, or the SAP signal.
2.2.4. Automatic Sound Select
The demodulator supports the identification check by
switching between mono compatible standards (standards that have the same FM mono carrier) automatically and non-audible. If B/G-FM or B/G-NICAM is
selected, the MSP will switch between these standards. The same action is performed for the standards:
D/K1-FM, D/K2-FM, and D/K-NICAM. Switching is only
done in the absence of any stereo or bilingual identification. If identification is found, the MSP keeps the
detected standard.
In case of high bit-error rates, the MSP 34x2G automatically falls back from digital NICAM sound to analog FM or AM mono.
primary
channel
secondary
channel
NICAM A
NICAM
FM/AM
0
Stereo or A/B
1
Stereo or A
3
Stereo or B
4
FM/AM
Prescale
NICAM
Automatic
Sound
Select
Prescale
LS Ch.
Matrix
Source Select
In the Automatic Sound Select mode, the dematrix
function is automatically selected based on the identification information in the STATUS register. No I2C interaction is necessary when the broadcasted sound
mode changes (e.g. from mono to stereo).
Output-Ch.
Matrices must
be set once to
stereo
SC2 Ch.
Matrix
Fig. 2–4: Source channel assignment of demodulated
signals in Automatic Sound Select Mode
2.2.5. Manual Mode
Fig. 2–5 shows the source channel assignment of
demodulated signals in case of manual mode. If manual mode is required, more information can be found in
Section 6.7. “Demodulator Source Channels in Manual
Mode” on page 99.
Table 2–1 summarizes all actions that take place when
Automatic Sound Select is switched on.
The following source channels of demodulated sound
are defined:
primary
channel
LS Ch.
Matrix
FM/AM
FM-Matrix
secondary
channel
Prescale
NICAM A
NICAM
FM/AM
NICAM
(Stereo or A/B)
NICAM
Prescale
0
Source Select
To provide more flexibility, the Automatic Sound Select
block prepares four different source channels of
demodulated sound (see Fig. 2–4). By choosing one of
the four demodulator channels, the preferred sound
mode can be selected for each of the output channels
(loudspeaker, headphone, etc.). This is done by means
of the Source Select registers.
Output-Ch.
Matrices
must be set
according
the standard
1
SC2 Ch.
Matrix
Fig. 2–5: Source channel assignment of demodulated
signals in Manual Mode
– “FM/AM” channel: Analog mono sound, stereo if
available. In case of NICAM, analog mono only
(FM or AM mono).
– “Stereo or A/B” channel: Analog or digital mono
sound, stereo if available. In case of bilingual broadcast, it contains both languages A (left) and B
(right).
12
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
Table 2–1: Performed actions of the Automatic Sound Selection
Selected TV Sound Standard
Performed Actions
B/G-FM, D/K-FM, M-Korea,
and M-Japan
Evaluation of the identification signal and automatic switching to mono, stereo, or bilingual. Preparing four
demodulator source channels according to Table 2–2. Identification is acquired after 500 ms.
B/G-NICAM, L-NICAM, I-NICAM,
and D/K-NICAM
Evaluation of NICAM-C-bits and automatic switching to mono, stereo, or bilingual. Preparing four
demodulator source channels according to Table 2–2. NICAM detection is acquired within 150 ms.
In case of bad or no NICAM reception, the MSP switches automatically to FM/AM mono and switches
back to NICAM if possible. A hysteresis prevents periodical switching.
B/G-FM, B/G-NICAM
or
D/K1-FM, D/K2-FM, D/K3-FM,
and D/K-NICAM
Automatic searching for stereo/bilingual-identification in case of mono transmission. Automatic and nonaudible changes between Dual-FM and FM-NICAM standards while listening to the basic FM-Mono sound
carrier.
Example: If starting with B/G-FM-Stereo, there will be a periodical alternation to B/G-NICAM in the
absence of FM-Stereo/Bilingual or NICAM-identification. Once an identification is detected, the MSP
keeps the corresponding standard.
BTSC-STEREO, FM Radio
Evaluation of the pilot signal and automatic switching to mono or stereo. Preparing four demodulator
source channels according to Table 2–2. Detection of the SAP carrier. Pilot detection is acquired after
200 ms.
BTSC-SAP
In the absence of SAP, the MSP switches to BTSC-Stereo if available. If SAP is detected, the MSP
switches automatically to SAP (see Table 2–2).
Table 2–2: Sound modes for the demodulator source channels with Automatic Sound Select
Source Channels in Automatic Sound Select Mode
Broadcasted
Sound
Standard
Selected
MSP Standard
Code3)
Broadcasted
Sound Mode
FM/AM
Stereo or A/B
Stereo or A
Stereo or B
(source select: 0)
(source select: 1)
(source select: 3)
(source select: 4)
M-Korea
B/G-FM
D/K-FM
M-Japan
02
03, 081)
04, 05, 07, 0B1)
30
MONO
Mono
Mono
Mono
Mono
STEREO
Stereo
Stereo
Stereo
Stereo
BILINGUAL:
Languages A and B
Left = A
Right = B
Left = A
Right = B
A
B
NICAM not available or
error rate too high
analog Mono
analog Mono
analog Mono
analog Mono
MONO
analog Mono
NICAM Mono
NICAM Mono
NICAM Mono
STEREO
analog Mono
NICAM Stereo
NICAM Stereo
NICAM Stereo
BILINGUAL:
Languages A and B
analog Mono
Left = NICAM A
Right = NICAM B
NICAM A
NICAM B
MONO
Mono
Mono
Mono
Mono
STEREO
Stereo
Stereo
Stereo
Stereo
MONO+SAP
Mono
Mono
Mono
Mono
STEREO+SAP
Stereo
Stereo
Stereo
Stereo
MONO+SAP
Left = Mono
Right = SAP
Left = Mono
Right = SAP
Mono
SAP
STEREO+SAP
Left = Mono
Right = SAP
Left = Mono
Right = SAP
Mono
SAP
MONO
Mono
Mono
Mono
Mono
STEREO
Stereo
Stereo
Stereo
Stereo
B/G-NICAM
L-NICAM
I-NICAM
D/K-NICAM
D/K-NICAM
08, 032)
09
0A
0B, 042), 052)
0C
(with high
deviation FM)
BTSC
20, 21
20
21
FM Radio
1)
2)
3)
40
The Automatic Sound Select process will automatically switch to the mono compatible analog standard.
The Automatic Sound Select process will automatically switch to the mono compatible digital standard.
The MSP Standard Codes are defined in Table 3–7 on page 27.
Micronas
13
MSP 34x2G
2.3. Preprocessing for SCART and
I2S Input Signals
The SCART and I2S inputs need only be adjusted in
level by means of the SCART and I2S prescale registers.
PRELIMINARY DATA SHEET
output level
[dBr]
−18
−24
2.4. Source Selection and Output Channel Matrix
The Source Selector makes it possible to distribute all
source signals (one of the demodulator source channels, SCART, or I2S input) to the desired output channels (loudspeaker, headphone, etc.). All input and output signals can be processed simultaneously. Each
source channel is identified by a unique source
address.
For each output channel, the sound mode can be set
to sound A, sound B, stereo, or mono by means of the
output channel matrix.
If Automatic Sound Select is on, the output channel
matrix can stay fixed to stereo (transparent) for demodulated signals.
2.5. Audio Baseband Processing
2.5.1. Automatic Volume Correction (AVC)
Different sound sources (e.g. terrestrial channels, SAT
channels, or SCART) fairly often do not have the same
volume level. Advertisements during movies usually
have a higher volume level than the movie itself. This
results in annoying volume changes. The AVC solves
this problem by equalizing the volume level.
To prevent clipping, the AVC’s gain decreases quickly
in dynamic boost conditions. To suppress oscillation
effects, the gain increases rather slowly for low-level
inputs. The decay time is programmable by means of
the AVC register (see page page 36).
For input signals ranging from −24 dBr to 0 dBr, the
AVC maintains a fixed output level of −18 dBr. Fig. 2–6
shows the AVC output level versus its input level. For
prescale and volume registers set to 0 dB, a level of
0 dBr corresponds to full scale input/output. This is
−30
−24
−18
−12
−6
0
input level
[dBr]
Fig. 2–6: Simplified AVC characteristics
2.5.2. Loudspeaker and Headphone Outputs
The following baseband features are implemented in
the loudspeaker and headphone output channels:
bass/treble, loudness, balance, and volume. A square
wave beeper can be added to the loudspeaker and
headphone channel. The loudspeaker channel additionally performs: equalizer (not simultaneously with
bass/treble), spatial effects, and a subwoofer crossover filter.
2.5.3. Subwoofer Output
The subwoofer signal is created by combining the left
and right channels directly behind the loudness block
using the formula (L+R)/2. Due to the division by 2, the
D/A converter will not be overloaded, even with full
scale input signals. The subwoofer signal is filtered by
a third-order low-pass with programmable corner frequency followed by a level adjustment. At the loudspeaker channels, a complementary high-pass filter
can be switched on. Subwoofer and loudspeaker output use the same volume (Loudspeaker Volume Register).
2.5.4. Quasi-Peak Detector
The quasi-peak readout register can be used to read
out the quasi-peak level of any input source. The feature is based on following filter time constants:
attack time: 1.3 ms
decay time: 37 ms
– SCART input/output 0 dBr = 2.0 Vrms
– Loudspeaker and Aux output 0 dBr = 1.4 Vrms
14
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
2.6. Surround Processing
2.6.2. Surround Processing Mode
2.6.1. Output Configuration
Surround sound processing is controlled by three functions:
Like the MSP 34x1G ICs, the MSP 34x2G can be used
for virtual surround sound on the left and right loudspeaker outputs. For multichannel outputs (more than
2 channels), extra output pins have been defined
(DACM_C and DACM_S pins). For processing of these
output channels, internal resources are shared with
the headphone processing. As a result, headphone
output is not possible together with multi-channel surround processing. When headphone output pins are
active, the surround outputs are muted and vice versa.
There are two options: the HP/CS switch and the
channel configuration. The output configuration is controlled by means of register 48hex on I2C subaddress
12hex.
2.6.1.1. HP/CS Switch
This switch defines which output pin pair is driven by
the D/A converters that are used for headphone or surround processing. The unselected pins are muted.
This makes it convenient to connect the center/surround amplifiers or outputs to the MSP 34x2 without
external switches.
Mute the Headphone/Surround channel by setting register 06hex to 0000hex before switching. Allow at least
2 s for settling to avoid audible plops.
2.6.1.2. Channel Configuration
The channel configuration defines whether surround
processing is switched on and what resources of the
IC are to be used for surround sound processing.
There are 3 options:
– STEREO:
The IC is in the normal stereo processing mode. No
surround processing takes place. In this mode, the
IC is compatible to the MSP 34x0G.
– TWO_CHANNEL:
Surround sound processing is switched on, but only
left and right loudspeaker channels are used for output. This mode is used for virtual surround sound.
– MULTI_CHANNEL:
Surround sound processing is switched on, left and
right loudspeaker channels together with left and
right headphone channels are used for output. The
following relationship applies: Center corresponds
to the left headphone channel; Surround corresponds to the right headphone channel.
Micronas
The "Decoder Matrix" defines which method should be
used to create a multichannel signal (L, C, R, S) out of
a stereo input.
The "Surround Reproduction" determines whether the
surround signal “S” is fed to surround speakers. If no
surround speaker is actually connected, it defines the
method that should be used to create surround effects.
The “Center Mode” determines how the center signal
“C” is to be processed. It can be left unmodified, distributed to left and right, discarded or high pass filtered, whereby the low pass signals are distributed to
left and right.
The surround processing mode is controlled by means
of register 4Bhex on I2C subaddress 12hex.
2.6.2.1. Decoder Matrix
The Decoder Matrix allows three settings:
– ADAPTIVE:
The adaptive matrix is used for Dolby Surround Pro
Logic. Even sound material not encoded in Dolby
Surround will produce good surround effects in this
mode. The use of the adaptive matrix requires a
license from Dolby Laboratories (See License
Notice on page 5).
– PASSIVE:
A simple fixed matrix is used for surround sound.
– EFFECT:
A fixed matrix that is used for mono sound and special effects. In adaptive or passive mode no surround signal is present in case of mono, moreover in
adaptive mode even the left and right output channels carry no signal (or just low frequency signals in
case of Center Mode = NORMAL). If surround
sound is still required for mono signals, the effect
mode can be used. This forces the surround channel to be active. The effect mode can be used
together with 3D-PANORAMA. The result will be a
pseudo stereo effect or a broadened stereo image
respectively.
15
MSP 34x2G
2.6.2.2. Surround Reproduction
PRELIMINARY DATA SHEET
2.6.2.4. Useful Combinations of
Surround Processing Modes
Surround sound can be reproduced with four choices:
– REAR_SPEAKER:
If there are any surround speakers connected to the
system, this mode should be used. Useful loudspeaker combinations are: (L, C, R, S) or (L, R, S).
– FRONT_SPEAKER:
If there is no surround speaker connected, this
mode can be used. Surround information is mixed to
left and right output but without creating the illusion
of a virtual speaker. It is similar to stereo but an
additional center speaker can be used. This mode
should be used with the adaptive decoder matrix
only. Useful loudspeaker combinations are: (L, C, R)
(Note: the surround output channel is muted).
– PANORAMA:
The surround information is mixed to left and right in
order to create the illusion of a virtual surround
speaker. Useful loudspeaker combinations are: (L,
C, R) or (L, R) (Note: the surround output channel is
muted).
– 3D-PANORAMA:
Like PANORAMA with improved effect. This algorithm has been approved by the Dolby Laboratories
for compliance with the "Virtual Dolby Surround"
technology. Useful loudspeaker combinations are:
(L, C, R) or (L, R) (Note: the surround output channel is muted).
2.6.2.3. Center Modes
Four center modes are supported:
– NORMAL:
small center speaker connected, L and R speakers
have better bass capability.
In principle, "Decoder Matrix", "Surround Reproduction", and "Center Modes" are independent settings (all
"Decoder Matrix" settings can be used with all "Surround Reproduction" and "Center Modes") but there
are some combinations that do not create "good"
sound. Useful combinations are
Surround Reproduction and Center Modes
– REAR_SPEAKER:
This mode is used if surround speakers are available. Useful center modes are NORMAL, WIDE,
PHANTOM, and OFF.
– FRONT_SPEAKER:
This mode can be used if no surround speaker but a
center speaker is connected. Useful center modes
are NORMAL and WIDE.
– PANORAMA or 3D-PANORAMA:
No surround speaker used. Two (L and R) or three
(L, R, and C) loudspeakers can be used. Useful
center modes are NORMAL, WIDE, PHANTOM,
and OFF.
Center Modes and Decoder Matrix
– PHANTOM:
Should only be used together with ADAPTIVE
Decoder Matrix.
– NORMAL and WIDE:
Can be used together with any Surround Decoder
Matrix.
– OFF:
In special cases, this mode can be used together
with the PASSIVE and EFFECT Decoder Matrix (no
center speaker connected).
– WIDE:
L,R, and C speakers all have good bass capability.
– PHANTOM:
No center speaker used. Center signal is distributed
to L and R (Note: the center output channel C is
muted).
– OFF:
No center speaker used. Center signal C is discarded (Note: the center output channel C is
muted).
16
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
2.6.3. Examples
Table 2–3 shows some examples of how these modes
can be used to configure the IC. The list is not
intended to be complete, more modes are possible.
Table 2–3: Examples of Surround Configurations
Configurations
Speaker
Configuration1)
Output Configuration
Surround Processing Mode
Register (48hex)
Register (4Bhex)
HP/CS
Switch
[15]
Channel
Configuration
[14:8]
Decoder
Matrix
[15:8]
Surround
Reproduction
[7:4]
Center
Mode
[3:0]
HP
STEREO
−
−
−
Stereo IC is compatible to the MSP34x0G.
Stereo
(L,R)
Surround Modes as defined by Dolby Laboratories 2)
Dolby Surround Pro Logic
(L,C,R,S)
CS
MULTI_CHANNEL
ADAPTIVE
REAR_
SPEAKER
NORMAL
WIDE
(L,R,S)
CS
MULTI_CHANNEL
ADAPTIVE
REAR_
SPEAKER
PHANTOM
Dolby 3 Stereo
(L,C,R)
CS
MULTI_CHANNEL
ADAPTIVE
FRONT_
SPEAKER
NORMAL
WIDE
Virtual Dolby Surround
(L,R)
HP
TWO_CHANNEL
ADAPTIVE
3D_PANORAMA
PHANTOM
Surround Modes that use the Dolby Pro Logic Matrix2)
3-Channel Virtual Surround
(L,C,R)
CS
MULTI_CHANNEL
ADAPTIVE
3D_PANORAMA
NORMAL
WIDE
4-Channel Surround
(L,C,R,S)
CS
MULTI_CHANNEL
PASSIVE
REAR_
SPEAKER
NORMAL
WIDE
3-Channel Surround
(L,R,S)
CS
MULTI_CHANNEL
PASSIVE
REAR_
SPEAKER
OFF
2-Channel Micronas Perfect 3D Sound
(L,R)
HP
TWO_CHANNEL
PASSIVE
3D_PANORAMA
OFF
3-Channel Micronas Perfect 3D Sound
(L,C,R)
CS
MULTI_CHANNEL
PASSIVE
3D_PANORAMA
NORMAL
WIDE
4-Channel Surround for mono
(L,C,R,S)
CS
MULTI_CHANNEL
EFFECT
REAR_
SPEAKER
NORMAL
WIDE
2-Channel Virtual Surround for mono
(L,R)
HP
TWO_CHANNEL
EFFECT
3D_PANORAMA
OFF
3-Channel Virtual Surround for mono
(L,C,R)
CS
MULTI_CHANNEL
EFFECT
3D_PANORAMA
NORMAL
WIDE
Passive Matrix Surround Sound
Special Effects Surround Sound
1)
2)
Speakers not in use are muted automatically.
The implementation in products requires a license from Dolby Laboratories Licensing Corporation (see note on page 5).
Micronas
17
MSP 34x2G
2.6.4. Application Tips for using 3D-PANORAMA
2.6.4.1. Sweet Spot
Good results are only obtained in a rather close area
along the middle axis between the two loudspeakers:
the sweet spot. Moving away from this position
degrades the effect.
PRELIMINARY DATA SHEET
Great care has to be taken with systems that use one
common subwoofer: A single loudspeaker cannot
reproduce virtual sound locations. The crossover frequency must be lower than 120 Hz.
2.6.4.4. Cabinet Requirements
During listening tests at Dolby Laboratories, no resonances in the cabinet should occur.
2.6.4.2. Clipping
For the test at Dolby Labs, it is very important to have
no clipping effects even with worst case signals. That
is, 2 Vrms input signal must not clip. The SCART input
prescale register has to be set to values of max 19hex
(25dec). This is sufficient in terms of clipping.
Good material to check for resonances are the Dolby
Trailers or other dynamic sound tracks.
2.6.5. Input and Output Levels in Dolby Surround
Pro Logic Mode
However, it was found, that by reducing the prescale to
a value lower than 25dec more convincing effects are
generated in case of very high dynamic signals. A
value of 18dec is a good compromise between overall
volume and additional headroom.
The analog inputs are able to accept 2 Vrms input level
without overloading any stage before the volume control. The nominal input level (input sensitivity) is
350 mV. This gives 15 dB headroom. The scart prescale value should be set to max 0 dB (max 25dec).
Test signals: sine sweep with 2 VRMS; L only, R only,
L&R equal phase, L&R anti phase.
I2S-Inputs should have the same headroom (15 dB)
when entering the MSP 3452G. The highest possible
input level of 0 dBFS is accepted without internal overflow. The I2S-prescale value should be set to 0 dB
(16dec).
Listening tests: Dolby Trailers (train trailer, city trailer,
canyon trailer...)
2.6.4.3. Loudspeaker Requirements
The loudspeakers used and their positioning inside the
TV set will greatly influence the performance of the virtualizer. The algorithm works with the direct sound
path. Reflected sound waves reduce the effect. So it’s
most important to have as much direct sound as possible, compared to indirect sound.
To obtain the approval for a TV set, Dolby Laboratories
require mounting the loudspeakers at the front of the
set. Loudspeakers radiating to the side of the TV set
will not produce convincing effects. Good directionality
of the loudspeakers towards the listener is optimal.
The virtualizer was specially developed for implementation in TV sets. Even for rather small stereo TV's, sufficient sound effects can be obtained. For small sets,
the loudspeaker placement should be to the side of the
CRT; for large screen sets (or 16:9 sets), mounting the
loudspeakers below the CRT is acceptable (large separation is preferred, low frequency speakers should be
outmost to avoid cancellation effects). Using external
loudspeakers with a large stereo base will not create
optimal effects.
With higher prescale values lower input sensitivities
can be accommodated. A higher input sensitivity is not
possible, because at least 15 dB headroom is required
for every input according to the Dolby specifications.
A full-scale left only input (2 Vrms) will produce a fullscale left only output (at 0 dB volume). The typical output level is 1.37 Vrms for DACM_L. The same holds
true for right only signals (1.37 Vrms for DACM_R). A
full-scale input level on both inputs (Lin=Rin=2 Vrms)
will give a center only output with maximum level. The
typical output level is 1.37 Vrms for DACM_C. A fullscale input level on both inputs (but Lin and Rin with
inverted phases) will give a surround-only signal with
maximum level (1.37 Vrms for DACM_S).
For reproducing Dolby Pro Logic according to its specifications, the center and surround outputs must be
amplified by 3 dB with respect to the L and R output
signals. This can be done in two ways:
1. By implementing 3 dB more amplification for center
and surround loudspeaker outputs.
2. By always selecting volume for L and R 3 dB lower
than center and surround. Method 1 is preferable, as
method 2 lowers the achievable SNR for left and right
signals by 3 dB.
The loudspeakers should be able to reproduce a wide
frequency range. The most important frequency range
starts from 160 Hz and ranges up to 5 kHz.
18
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
2.6.6. Subwoofer in Surround Mode
2.8. I2S Bus Interface
If the channel configuration is set to OFF or
TWO_CHANNEL, the subwoofer signal is created by
combining the left and right channels directly behind
the loudness block using the formula (L+R)/2.
The MSP 34x2G has a synchronous master/slave
input/output interface running on 32 kHz.
Note: This is identical to the MSP 34x0G.
If the channel configuration is MULTI_CHANNEL, the
subwoofer signal is created by combining the left and
right channels of the loudspeaker channel and the
center signal (= headphone left) directly behind the
loudness block using the formula (L+R+C)/2. Due to
the fact, that the subwoofer is formed behind all bass/
treble/loudness filters, it is strongly recommended to
have exactly the same setting for these filters in both,
the loudspeaker and center/surround channels when
using the subwoofer output. Any mismatch in these
settings will result in an unbalanced mix of L, C and R
for the subwoofer signal.
The interface accepts two formats:
1. I2S_WS changes at the word boundary
2. I2S_WS changes one I2S-clock period before the
word boundaries.
All I2S options are set by means of the MODUS and
the I2S_CONFIG registers.
The synchronous I2S bus interface consists of five
pins:
– I2S_DA_IN1, I2S_DA_IN2:
I2S serial data input: 16, 18....32 bits per sample
– I2S_DA_OUT:
I2S serial data output: 16, 18...32 bits per sample
2.6.7. Equalizer in Surround Mode
– I2S_CL:
I2S serial clock
In the MULTI_CHANNEL mode, the equalizer cannot
be used.
– I2S_WS:
I2S word strobe signal defines the left and right
sample
2.7. SCART Signal Routing
2.7.1. SCART DSP In and SCART Out Select
The SCART DSP Input Select and SCART Output
Select blocks include full matrix switching facilities. To
design a TV set with four pairs of SCART-inputs and
two pairs of SCART-outputs, no external switching
hardware is required. The switches are controlled by
the ACB user register (see Table 3–11on page 42).
If the MSP 34x2G serves as the master on the I2S
interface, the clock and word strobe lines are driven by
the IC. In this mode, only 16 or 32 bits per sample can
be selected. In slave mode, these lines are input to the
IC and the MSP clock is synchronized to 576 times the
I2S_WS rate (32 kHz). NICAM operation is not possible in slave mode.
An I2S timing diagram is shown in Fig. 4–22 on
page 71.
2.7.2. Stand-by Mode
If the MSP 34x2G is switched off by first pulling
STANDBYQ low and then (after >1 µs delay) switching
off the 5-V, but keeping the 8-V power supply (‘Standby’-mode), the SCART switches maintain their position and function. This allows the copying from
selected SCART-inputs to SCART-outputs in the TV
set’s stand-by mode.
In case of power on or starting from stand-by (switching on the 5-V supply, RESETQ going high 2 ms later),
all internal registers except the ACB register
(page page 42) are reset to the default configuration
(see Table 3–5 on page 24). The reset position of the
ACB register becomes active after the first I2C transmission into the Baseband Processing part (subaddress 12hex). By transmitting the ACB register first, the
reset state can be redefined.
Micronas
19
MSP 34x2G
2.9. ADR Bus Interface
For the ASTRA Digital Radio System (ADR), the
MSP 3402G, MSP 3412G and MSP 3452G performs
preprocessing such as carrier selection and filtering.
Via the 3-line ADR-bus, the resulting signals are transferred to the DRP 3510A coprocessor, where the
source decoding is performed. To be prepared for an
upgrade to ADR with an additional DRP board, the following lines of MSP 34x2G should be provided on a
feature connector:
– AUD_CL_OUT
PRELIMINARY DATA SHEET
2.11.Clock PLL Oscillator and
Crystal Specifications
The MSP 34x2G derives all internal system clocks
from the 18.432 MHz oscillator. In NICAM or in I2SSlave mode, the clock is phase-locked to the corresponding source. Therefore, it is not possible to use
NICAM and I2S-Slave mode at the same time.
For proper performance, the on-chip clock oscillator
requires a 18.432 MHz crystal. Note that for the
phase-locked modes (NICAM, I2S-Slave), crystals with
tighter tolerance are required.
– I2S_DA_IN1 or I2S_DA_IN2
– I2S_DA_OUT
Remark on using the crystal:
– I2S_WS
– I2S_CL
– ADR_CL, ADR_WS, ADR_DA
For more details, please refer to the DRP 3510A data
sheet.
2.10.Digital Control I/O Pins and
Status Change Indication
External capacitors at each crystal pin to ground are
required. They are necessary for tuning the open-loop
frequency of the internal PLL and for stabilizing the frequency in closed-loop operation. The higher the
capacitors, the lower the resulting clock frequency. The
nominal free running frequency should match
18.432 MHz as closely as possible.
Clock measurements should be done at pin
AUD_CL_OUT. This pin must be activated for this purpose (see Table 3–9 on page 30).
The static level of the digital input/output pins
D_CTR_I/O_0/1 is switchable between HIGH and
LOW via the I2C-bus by means of the ACB register
(see Table 3–11on page page 42). This enables the
controlling of external hardware switches or other
devices via I2C-bus.
The digital input/output pins can be set to high impedance by means of the MODUS register (see Table 3–9
on page 30). In this mode, the pins can be used as
input. The current state can be read out of the STATUS
register (see Table 3–9 on page page 31).
Optionally, the pin D_CTR_I/O_1 can be used as an
interrupt request signal to the controller, indicating any
changes in the read register STATUS. This makes polling unnecessary, I2C bus interactions are reduced to a
minimum.
20
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
typical response time is about 0.3 ms. If the MSP cannot accept another complete byte of data until it has
performed some other function (for example, servicing
an internal interrupt), it will hold the clock line I2C_CL
LOW to force the transmitter into a wait state. The
positions within a transmission where this may happen
are indicated by “Wait” in Section 3.1.4. The maximum
wait period of the MSP during normal operation mode
is less than 1 ms.
3. Control Interface
3.1. I2C Bus Interface
3.1.1. Device and Subaddresses
The MSP 34x2G is controlled via the I2C bus slave
interface.
The IC is selected by transmitting one of the
MSP 34x2G device addresses. In order to allow up to
three MSP ICs to be connected to a single bus, an
address select pin (ADR_SEL) has been implemented.
With ADR_SEL pulled to high, low, or left open, the
MSP 34x2G responds to different device addresses. A
device address pair is defined as a write address and a
read address (see Table 3–1).
3.1.2. Internal Hardware Error Handling
In case of any internal hardware error (e.g. interruption
of the power supply of the MSP), the MSP’s wait period
is extended to 1.8 ms. After this time period elapses,
the MSP releases data and clock lines.
Writing is done by sending the device write address,
followed by the subaddress byte, two address bytes,
and two data bytes. Reading is done by sending the
write device address, followed by the subaddress byte
and two address bytes. Without sending a stop condition, reading of the addressed data is completed by
sending the device read address and reading two
bytes of data. Refer to Section 3.1.4. for the I2C bus
protocol and to Section 3.4. “Programming Tips” on
page 47 for proposals of MSP 34x2G I2C telegrams.
See Table 3–2 for a list of available subaddresses.
Indicating and solving the error status:
To indicate the error status, the remaining acknowledge bits of the actual I2C-protocol will be left high.
Additionally, bit[14] of CONTROL is set to one. The
MSP can then be reset via the I2C bus by transmitting
the reset condition to CONTROL.
Indication of reset:
Besides the possibility of hardware reset, the MSP can
also be reset by means of the RESET bit in the CONTROL register by the controller via I2C bus.
Any reset, even caused by an unstable reset line etc.,
is indicated in bit[15] of CONTROL.
A general timing diagram of the I2C bus is shown in
Fig. 4–21 on page 69.
Due to the internal architecture of the MSP 34x2G, the
IC cannot react immediately to an I2C request. The
Table 3–1: I2C Bus Device Addresses
ADR_SEL
Low
High
Left Open
Mode
Write
Read
Write
Read
Write
Read
MSP device address
80hex
81hex
84hex
85hex
88hex
89hex
Table 3–2: I2C Bus Subaddresses
Name
Binary Value
Hex Value
Mode
Function
CONTROL
0000 0000
00
Read/Write
Write: Software reset of MSP (see Table 3–3)
Read: Hardware error status of MSP
TEST
0000 0001
01
Write
only for internal use
WR_DEM
0001 0000
10
Write
write address demodulator
RD_DEM
0001 0001
11
Write
read address demodulator
WR_DSP
0001 0010
12
Write
write address DSP
RD_DSP
0001 0011
13
Write
read address DSP
Micronas
21
MSP 34x2G
PRELIMINARY DATA SHEET
3.1.3. Description of CONTROL Register
Table 3–3: CONTROL as a Write Register
Name
Subaddress
Bit[15] (MSB)
Bits[14:0]
CONTROL
00 hex
1 : RESET
0 : normal
0
Table 3–4: CONTROL as a Read Register (only MSP 34x2G-versions from A2 on)
Name
Subaddress
Bit[15] (MSB)
Bit[14]
Bits[13:0]
CONTROL
00 hex
Reset status after last reading of CONTROL:
0 : no reset occured
1 : reset occured
Internal hardware status:
0 : no error occured
1 : internal error occured
not of interest
Reading of CONTROL will reset the bits[15,14] of CONTROL. After Power-on, bit[15] of CONTROL will be set; it must be
read once to be resetted.
3.1.4. Protocol Description
Write to DSP or Demodulator
S
Wait
write
device
address
ACK sub-addr ACK addr-byte ACK addr-byte ACK data-byte- ACK data-byte ACK P
high
low
high
low
Read from DSP or Demodulator
S
Wait
write
device
address
ACK sub-addr ACK addr-byte ACK addr-byte ACK S
high
low
read
device
address
Wait
ACK data-byte- ACK data-byte NAK P
high
low
Write to Control or Test Registers
S
Wait
write
device
address
ACK sub-addr ACK data-byte ACK data-byte ACK P
high
low
Read from Control Register
S
Wait
write
device
address
Note: S =
P=
ACK =
NAK =
Wait =
22
ACK
00hex
ACK S
read
device
address
Wait
ACK data-byte- ACK data-byte NAK P
high
low
I2C-Bus Start Condition from master
I2C-Bus Stop Condition from master
Acknowledge-Bit: LOW on I2C_DA from slave (= MSP, light gray) or master (= controller dark gray)
Not Acknowledge-Bit: HIGH on I2C_DA from master (dark gray) to indicate ‘End of Read’
or from MSP indicating internal error state
I2C-Clock line is held low, while the MSP is processing the I2C command.
This waiting time is max. 1 ms
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
1
0
I2C_DA
S
P
I2C_CL
Fig. 3–1: I2C bus protocol (MSB first; data must be stable while clock is high)
3.1.5. Proposals for General MSP 34x2G I2C Telegrams
3.1.5.1. Symbols
write device address (80hex, 84hex or 88hex)
read device address (81hex, 85hex or 89hex)
Start Condition
Stop Condition
Address Byte
Data Byte
daw
dar
<
>
aa
dd
3.2. Start-Up Sequence:
Power-Up and I2C Controlling
After POWER ON or RESET (see Fig. 4–20), the IC is
in an inactive state. All registers are in the reset position (see Table 3–5 and Table 3–6), the analog outputs
are muted. The controller has to initialize all registers
for which a non-default setting is necessary.
3.3. MSP 34x2G Programming Interface
3.3.1. User Registers Overview
3.1.5.2. Write Telegrams
<daw 00 d0 00>
<daw 10 aa aa dd dd>
<daw 12 aa aa dd dd>
write to CONTROL register
write data into demodulator
write data into DSP
The MSP 34x2G is controlled by means of user registers. The complete list of all user registers is given in
the following tables. The registers are partitioned into
the Demodulator section (Subaddress 10hex for writing, 11hex for reading) and the Baseband Processing
sections (Subaddress 12hex for writing, 13hex for reading).
3.1.5.3. Read Telegrams
read data from
CONTROL register
<daw 11 aa aa <dar dd dd> read data from demodulator
<daw 13 aa aa <dar dd dd> read data from DSP
<daw 00 <dar dd dd>
Unused parts of the 16-bit write registers must be zero.
Addresses not given in this table must not be
accessed.
3.1.5.4. Examples
<80
<80
<80
<80
<80
00
00
10
11
12
80
00
00
02
00
00>
RESET MSP statically
00>
Clear RESET
20 00 03>
Set demodulator to stand. 03hex
00 <81 dd dd> Read STATUS
08 01 20>
Set loudspeaker channel
source to NICAM and
Matrix to STEREO
More examples of typical application protocols are
listed in Section 3.4. “Programming Tips” on page 47.
Micronas
Write and read registers are 16-bit wide, whereby the
MSB is denoted bit[15]. Transmissions via I2C bus have
to take place in 16-bit words (two byte transfers, with the
most significant byte transferred first). All write registers,
except the demodulator write registers, are readable.
For reasons of software compatibility to the
MSP 34x0D, an Manual/Compatibility Mode is available. More read and write registers together with a
detailed description of this mode can be found in the
“Appendix B: Manual/Compatibility Mode” on page 85.
An overview of all MSP 34x2G Write Registers is
shown in Table 3–5; all Read Registers are given in
Table 3–6.
23
MSP 34x2G
PRELIMINARY DATA SHEET
Table 3–5: List of MSP 34x2G Write Registers
Write Register
Address
(hex)
Bits
Description and Adjustable Range
Reset
See
Page
I2C Subaddress = 10hex ; Registers are not readable
STANDARD SELECT
00 20
[15:0]
Initial Programming of complete Demodulator
00 00
28
MODUS
00 30
[15:0]
Demodulator, Automatic and I2S options
00 00
30
00 00
31
35
I2S CONFIGURATION
00 40
[15:0]
2
Configuration of I S format
I2C Subaddress = 12hex ; Registers are all readable by using I2C Subaddress = 13hex
Volume loudspeaker channel
00 00
Volume / Mode loudspeaker channel
Balance loudspeaker channel [L/R]
00 01
Balance mode loudspeaker
[15:8]
[+12 dB ... −114 dB, MUTE]
MUTE
[7:0]
1/8 dB Steps,
Reduce Volume / Tone Control / Compromise
00hex
[15:8]
[0...100 / 100% and 100 / 0...100%]
[−127...0 / 0 and 0 / −127...0 dB]
100%/100%
[7:0]
[Linear mode / logarithmic mode]
linear mode
36
Bass loudspeaker channel
00 02
[15:8]
[+20 dB ... −12 dB]
0 dB
37
Treble loudspeaker channel
00 03
[15:8]
[+15 dB ... −12 dB]
0 dB
38
Loudness loudspeaker channel
00 04
[15:8]
[0 dB ... +17 dB]
0 dB
39
[7:0]
[NORMAL, SUPER_BASS]
NORMAL
[15:8]
[−100%...OFF...+100%]
OFF
[7:0]
[SBE, SBE+PSE]
SBE+PSE
[15:8]
[+12 dB ... −114 dB, MUTE]
MUTE
[7:0]
1/8 dB Steps, Reduce Volume / Tone Control
00hex
[15:8]
[+12 dB ... −114 dB, MUTE]
MUTE
41
[15:8]
2
[FM/AM, NICAM, SCART, I S1, I S2]
FM/AM
34
[7:0]
[SOUNDA, SOUNDB, STEREO, MONO...]
SOUNDA
34
Loudness filter characteristic
Spatial effect strength loudspeaker ch.
00 05
Spatial effect mode/customize
Volume headphone
*)
channel
00 06
Volume / Mode headphone *) channel
Volume SCART1 output channel
Loudspeaker source select
00 07
00 08
Loudspeaker channel matrix
Headphone
*)
source select
Headphone
*)
channel matrix
SCART1 source select
00 09
00 0a
SCART1 channel matrix
I2S source select
00 0b
I2S channel matrix
Quasi-peak detector source select
00 0c
Quasi-peak detector matrix
2
2
2
40
35
[15:8]
[FM/AM, NICAM, SCART, I S1, I S2]
FM/AM
34
[7:0]
[SOUNDA, SOUNDB, STEREO, MONO...]
SOUNDA
34
[15:8]
[FM/AM, NICAM, SCART, I2S1, I2S2]
FM/AM
34
[7:0]
[SOUNDA, SOUNDB, STEREO, MONO...]
SOUNDA
34
[15:8]
[FM/AM, NICAM, SCART, I2S1, I2S2]
FM/AM
34
[7:0]
[SOUNDA, SOUNDB, STEREO, MONO...]
SOUNDA
34
2
2
[15:8]
[FM/AM, NICAM, SCART, I S1, I S2]
FM/AM
34
[7:0]
[SOUNDA, SOUNDB, STEREO, MONO...]
SOUNDA
34
Prescale SCART input
00 0d
[15:8]
[00hex ... 7Fhex]
00hex
34
Prescale FM/AM
00 0e
[15:8]
[00hex ... 7Fhex]
00hex
32
[7:0]
[NO_MAT, GSTERERO, KSTEREO]
NO_MAT
33
FM matrix
Prescale NICAM
00 10
[15:8]
[00hex ... 7Fhex] (MSP 3410G, MSP 3450G only)
00hex
33
Prescale I2S2
00 12
[15:8]
[00hex ... 7Fhex]
10hex
33
ACB : SCART Switches a. D_CTR_I/O
00 13
[15:0]
Bits [15..0]
00hex
42
Beeper
00 14
[15:0]
[00hex ... 7Fhex]/[00hex ... 7Fhex]
0/0
42
Prescale I2S1
00 16
[15:8]
[00hex ... 7Fhex]
10hex
33
24
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
Table 3–5: List of MSP 34x2G Write Registers
Write Register
Address
(hex)
Bits
Description and Adjustable Range
Reset
See
Page
Mode tone control
00 20
[15:8]
[BASS/TREBLE, EQUALIZER]
BASS/TREB
37
Equalizer loudspeaker ch. band 1
00 21
[15:8]
[+12 dB ... −12 dB]
0 dB
38
Equalizer loudspeaker ch. band 2
00 22
[15:8]
[+12 dB ... −12 dB]
0 dB
38
Equalizer loudspeaker ch. band 3
00 23
[15:8]
[+12 dB ... −12 dB]
0 dB
38
Equalizer loudspeaker ch. band 4
00 24
[15:8]
[+12 dB ... −12 dB]
0 dB
38
Equalizer loudspeaker ch. band 5
00 25
[15:8]
[+12 dB ... −12 dB]
0 dB
38
Automatic Volume Correction
00 29
[15:8]
[off, on, decay time]
off
36
Subwoofer level adjust
00 2C
[15:8]
[0 dB ... −30 dB, mute]
0 dB
41
Subwoofer corner frequency
00 2D
[15:8]
[50 Hz ... 400 Hz]
00hex
41
[7:0]
[off, on]
off
41
[15:8]
[0...100 / 100% and 100 / 0...100%]
[−127...0 / 0 and 0 / −127...0 dB]
100 %/100 %
36
[7:0]
[Linear mode / logarithmic mode]
linear mode
00 31
[15:8]
[+20 dB ... −12 dB]
0 dB
37
Treble headphone channel
00 32
[15:8]
[+15 dB ... −12 dB]
0 dB
38
Loudness headphone*) channel
00 33
[15:8]
[0 dB ... +17 dB]
0 dB
39
[7:0]
[NORMAL, SUPER_BASS]
NORMAL
Subwoofer complementary high-pass
Balance headphone*) channel [L/R]
00 30
Balance mode headphone*)
Bass headphone*) channel
*)
Loudness filter characteristic *)
Volume SCART2 output channel
00 40
[15:8]
[+12 dB ... −114 dB, MUTE]
00hex
41
SCART2 source select
00 41
[15:8]
[FM, NICAM, SCART, I2S1, I2S2]
FM
34
[7:0]
[SOUNDA, SOUNDB, STEREO, MONO...]
SOUNDA
34
[15]
[AUX, CS]
0hex
43
[14:8]
[STEREO/TWO_CHANNEL/MULTI_CHANNEL]
00hex
43
SCART2 channel matrix
AUX/CS switch
00 48
Channel configuration
Spatial effect for surround processing
00 49
[15:8]
[0% - 100%]
00hex
43
Virtual surround effect strength
00 4A
[15:8]
[0% - 100%]
00hex
44
Decoder matrix
00 4B
[15:8]
[ADAPTIVE/PASSIVE/EFFECT]
00hex
44
Surround reproduction
[7:4]
[REAR_SPEAKER/FRONT_SPEAKER/PANORAMA/
3D_PANORAMA]
0hex
44
Center mode
[3:0]
[PHANTOM/NORMAL/WIDE/OFF]
0hex
44
Surround delay
00 4C
[15:0]
[5..31ms]
00hex
45
Noise Generator
00 4D
[15:0]
[NOISEL, NOISEC, NOISER, NOISES]
00hex
45
*)
In Multi Channel Mode, these registers are used for controlling baseband functions of the center and surround channels. Following relationship applies: Center
corresponds to the left headphone channel, Surround corresponds to the right headphone channel.
Micronas
25
MSP 34x2G
PRELIMINARY DATA SHEET
Table 3–6: List of MSP 34x2G Read Registers
Read Register
Address
(hex)
Bits
Description and Adjustable Range
See
Page
I2C Subaddress = 11hex ; Registers are not writable
STANDARD RESULT
00 7E
[15:0]
Result of Automatic Standard Detection
(MSP 3412G, MSP 3442G, MSP 3452G only)
31
STATUS
02 00
[15:0]
Monitoring of internal settings e.g. Stereo, Mono, Mute etc. .
31
2
I C Subaddress = 13hex ; Registers are not writable
Quasi peak readout left
00 19
[15:0]
[00hex ... 7FFFhex]16 bit two’s complement
46
Quasi peak readout right
00 1A
[15:0]
[00hex ... 7FFFhex]16 bit two’s complement
46
MSP hardware version code
00 1E
[15:8]
[00hex ... FFhex]
46
[7:0]
[00hex ... FFhex]
46
[15:8]
[00hex ... FFhex]
46
[7:0]
[00hex ... FFhex]
46
MSP major revision code
MSP product code
MSP ROM version code
26
00 1F
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
3.3.2. Description of User Registers
Table 3–7: Standard Codes for STANDARD SELECT register
MSP Standard Code
(Data in hex)
TV Sound Standard
Sound Carrier
Frequencies in MHz
MSP 34x2G Version
Automatic Standard Detection
00 01
Start Automatic Standard Detection and
set to detected standard
all
Standard Selection
00 02
M-Dual FM-Stereo
4.5/4.724212
3402, -12, -22, -42, -52
00 03
B/G -Dual
FM-Stereo1)
5.5/5.7421875
3402, -12, -52
00 04
D/K1-Dual FM-Stereo2)
6.5/6.2578125
00 05
D/K2-Dual FM-Stereo2)
6.5/6.7421875
3)
00 06
D/K -FM-Mono with HDEV3 , not detectable by Automatic
Standard Detection,
HDEV33) SAT-Mono (i.e. Eutelsat, see Table 6–18)
6.5
00 07
D/K3-Dual FM-Stereo
6.5/5.7421875
1)
5.5/5.85
3412, -52
00 08
B/G -NICAM-FM
00 09
L -NICAM-AM
6.5/5.85
00 0A
I -NICAM-FM
6.0/6.552
00 0B
D/K -NICAM-FM2)
6.5/5.85
00 0C
D/K -NICAM-FM with HDEV24), not detectable by Automatic
Standard Detection, for China
6.5/5.85
00 0D
D/K -NICAM-FM with HDEV33), not detectable by Automatic
Standard Detection, for China
6.5/5.85
00 20
BTSC-Stereo
4.5
3422, -42, -52
00 21
BTSC-Mono + SAP
00 30
M-EIA-J Japan Stereo
4.5
3422, -42, -52
00 40
FM-Stereo Radio
10.7
3422, -42, -52
00 50
SAT-Mono (see Table 6–18)
6.5
3402, -12, -52
00 51
SAT-Stereo (see Table 6–18)
7.02/7.20
00 60
SAT ADR (Astra Digital Radio)
6.12
1)
2)
3)
4)
In case of Automatic Sound Select, the B/G-codes 3hex and 8hex are equivalent.
In case of Automatic Sound Select, the D/K-codes 4hex, 5hex, 7hex, and Bhex are equivalent.
HDEV3: Max. FM deviation must not exceed 540 kHz
HDEV2: Max. FM deviation must not exceed 360 kHz
Micronas
27
MSP 34x2G
PRELIMINARY DATA SHEET
3.3.2.1. STANDARD SELECT Register
3.3.2.2. Refresh of STANDARD SELECT Register
The TV sound standard of the MSP 34x2G demodulator is determined by the STANDARD SELECT register.
There are two ways to use the STANDARD SELECT
register:
A general refresh of the STANDARD SELECT register
is not allowed. However, the following method
enables watching the MSP 34x2G “alive” status and
detection of accidental resets (only versions A2 and
later):
– Setting up the demodulator for a TV sound standard
by sending the corresponding standard code with a
single I2C-Bus transmission.
– Starting the Automatic Standard Detection for terrestrial TV standards. This is the most comfortable
way to set up the demodulator. Within 0.5 s, the
detection and set-up of the actual TV sound standard is performed. The detected standard can be
read out of the STANDARD RESULT register by the
control processor. This feature is recommended for
the primary set-up of a TV set. Outputs should be
muted during Automatic Standard Detection.
– After Power-on, bit[15] of CONTROL will be set; it
must be read once to enable the reset-detection
feature.
– Reading of the CONTROL register and checking
the reset indicator bit[15] .
– If bit[15] is “0”, any refresh of the STANDARD
SELECT register is not allowed.
– If bit[15] is “1”, indicating a reset, a refresh of the
STANDARD SELECT register and all other MSPG
registers is necessary.
The Standard Codes are listed in Table 3–7.
3.3.2.3. STANDARD RESULT Register
Selecting a TV sound standard via the STANDARD
SELECT register initializes the demodulator. This
includes: AGC-settings and carrier mute, tuning frequencies, FIR-filter settings, demodulation mode (FM,
AM, NICAM), deemphasis and identification mode.
TV stereo sound standards that are unavailable for a
specific MSP version are processed in analog mono
sound of the standard. In that case, stereo or bilingual
processing will not be possible.
For a complete setup of the TV sound processing from
analog IF input to the source selection, the transmissions as shown in Section 3.5. are necessary.
For reasons of software compatibility to the
MSP 34x0D, a Manual/Compatibility mode is available.
A detailed description of this mode can be found on
page 85.
If Automatic Standard Detection is selected in the
STANDARD SELECT register, status and result of the
Automatic Standard Detection process can be read out
of the STANDARD RESULT register. The possible
results are based on the mentioned Standard Code
and are listed in Table 3–8.
In cases where no sound standard has been detected
(no standard present, too much noise, strong interferers, etc.) the STANDARD RESULT register contains 00
00hex. In that case, the controller has to start further
actions (for example, set the standard according to a
preference list or by manual input).
As long as the STANDARD RESULT register contains
a value greater than 07 FFhex, the Automatic Standard
Detection is still active. During this period, the MODUS
and STANDARD SELECT register must not be written.
The STATUS register will be updated when the Automatic Standard Detection has finished.
If a present sound standard is unavailable for a specific
MSP version, it detects and switches to the analog
mono sound of this standard.
Example:
The MSP 3442G will detect a B/G-NICAM signal as
standard 3 and will switch to the analog FM-Mono
sound.
28
Micronas
PRELIMINARY DATA SHEET
MSP 34x2G
Table 3–8: Results of the Automatic Standard
Detection
Broadcasted Sound
Standard
STANDARD RESULT Register
Read 007Ehex
Automatic Standard
Detection could not
find a sound standard
0000hex
B/G-FM
0003hex
B/G-NICAM
0008hex
I
000Ahex
FM-Radio
0040hex
M-Korea
M-Japan
M-BTSC
0002hex (if MODUS[14,13]=00)
0020hex (if MODUS[14,13]=01)
0030hex (if MODUS[14,13]=10)
L-AM
D/K1
D/K2
0009hex (if MODUS[12]=0)
L-NICAM
D/K-NICAM
0009hex (if MODUS[12]=0)
0004hex (if MODUS[12]=1)
000Bhex (if MODUS[12]=1)
Automatic Standard
Detection still active
Micronas
>07FFhex
29
MSP 34x2G
PRELIMINARY DATA SHEET
3.3.2.4. Write Registers on I2C Subaddress 10hex
Table 3–9: Write Registers on I2C Subaddress 10hex
Register
Address
Function
Name
00 20hex
STANDARD SELECTION Register
STANDARD_SEL
Defines TV Sound or FM-Radio Standard
bit[15:0]
00 30hex
00 01hex
00 02hex
...
00 60hex
start Automatic Standard Detection
Standard Codes (see Table 3–7))
MODUS
MODUS Register
Preference in Automatic Standard Detection:
bit[15]
0
undefined, must be 0
0
1
2
3
detected 4.5 MHz carrier is interpreted as:1)
standard M (Korea)
standard M (BTSC)
standard M (Japan)
chroma carrier (M/N standards are ignored)
0
1
detected 6.5 MHz carrier is interpreted as:1)
standard L (SECAM)
standard D/K1, D/K2 or D/K NICAM
bit[14:13]
bit[12]
General MSP 34x2G Options
bit[11:9]
0
undefined, must be 0
bit[8]
0/1
ANA_IN_1+/ANA_IN_2+;
select analog sound IF input pin
bit[7]
0/1
active/tristate state of audio clock output pin
AUD_CL_OUT
bit[6]
0
1
bit[5]
0/1
master/slave mode of I2S interface (must be set to 0
(= Master) in case of NICAM mode)
bit[4]
0/1
active/tristate state of I2S output pins
bit[3]
0
1
1) Valid
30
word strobe alignment (synchronous I2S)
WS changes at data word boundary
WS changes one clock cycle in advance
state of digital output pins D_CTR_I/O_0 and _1
active: D_CTR_I/O_0 and _1 are output pins
(can be set by means of the ACB register.
see also: MODUS[1])
tristate: D_CTR_I/O_0 and _1 are input pins
(level can be read out of STATUS[4,3])
bit[2]
0
undefined, must be 0
bit[1]
0/1
disable/enable STATUS change indication by means of
the digital I/O pin D_CTR_I/O_1
Necessary condition: MODUS[3] = 0 (active)
bit[0]
0/1
off/on: Automatic Sound Select
at the next start of Automatic Standard Detection.
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
3.3.2.5. Read Registers on I2C Subaddress 11hex
Table 3–10: Read Registers on I2C Subaddress 11hex
Register
Address
Function
Name
00 40hex
I2S CONFIGURATION Register
I2S_CONFIG
bit[15:1]
0
not used, must be set to “0”
0
1
I2S_CL frequency and I2S data sample length for
master mode
2 x 16 bit (1.024 MHz)
2 x 32 bit (2.048 MHz))
bit[0]
00 7Ehex
STANDARD RESULT Register
STANDARD_RES
Readback of the detected TV Sound or FM-Radio Standard
bit[15:0]
00 00hex
00 02hex
Automatic Standard Detection could not find
a sound standard
MSP Standard Codes (see Table 3–8)
...
00 40hex
>07 FFhex Automatic Standard Detection still active
02 00hex
STATUS Register
STATUS
Contains all user relevant internal information about the status of the MSP
bit[15:10]
undefined
bit[8]
0/1
“1” indicates bilingual sound mode or SAP present
(internally evaluated from received analog or
digital identification signal)
bit[7]
0/1
“1” indicates independent mono sound
(only for NICAM on MSP 3412G and MSP 3452G)
bit[6]
0/1
mono/stereo indication (internally evaluated from
received analog or digital identification signal)
bit[5,9]
00
01
analog sound standard (FM or AM) active
not obtainable
10
digital sound (NICAM) available (MSP 3412G and
MSP 3452G only)
11
bad reception condition of digital sound (NICAM) due to:
a. high error rate
b. unimplemented sound code
c. data transmission only
bit[4]
0/1
low/high level of digital I/O pin D_CTR_I/O_1
bit[3]
0/1
low/high level of digital I/O pin D_CTR_I/O_0
bit[2]
0
1
detected secondary carrier (2nd A2 or SAP carrier)
no secondary carrier detected
bit[1]
0
1
detected primary carrier (Mono or MPX carrier)
no primary carrier detected
bit[0]
undefined
If STATUS change indication is activated by means of MODUS[1]: Each
change in the STATUS register sets the digital I/O pin D_CTR_I/O_1 to high
level. Reading the STATUS register resets D_CTR_I/O_1.
Micronas
31
MSP 34x2G
PRELIMINARY DATA SHEET
3.3.2.6. Write Registers on I2C Subaddress 12hex
Table 3–11: Write Registers on I2C Subaddress 12hex
Register
Address
Function
Name
PREPROCESSING
00 0Ehex
PRE_FM
FM/AM Prescale
bit[15:8]
00hex
...
7Fhex
00hex
Defines the input prescale gain for the demodulated
FM or AM signal
off (RESET condition)
For all FM modes except satellite FM and AM-mode, the combinations of prescale value and FM deviation listed below lead to internal full scale.
FM mode
bit[15:8]
7Fhex
48hex
30hex
24hex
18hex
13hex
28 kHz FM deviation
50 kHz FM deviation
75 kHz FM deviation
100 kHz FM deviation
150 kHz FM deviation
180 kHz FM deviation (limit)
FM high deviation mode (HDEV2, MSP Standard Code = Chex)
bit[15:8]
30hex
14hex
150 kHz FM deviation
360 kHz FM deviation (limit)
FM very high deviation mode (HDEV3, MSP Standard Code = 6 and Dhex)
bit[15:8]
20hex
1Ahex
450 kHz FM deviation
540 kHz FM deviation (limit)
Satellite FM with adaptive deemphasis
bit[15:8]
10hex
recommendation
AM mode (MSP Standard Code = 9)
bit[15:8]
7Chex
recommendation for SIF input levels from
0.1 Vpp to 0.8 Vpp
(Due to the AGC being switched on, the AM-output level
remains stable and independent of the actual SIF-level in
the mentioned input range)
32
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
Table 3–11: Write Registers on I2C Subaddress 12hex, continued
Register
Address
Function
Name
(continued)
FM Matrix Modes
FM_MATRIX
00 0Ehex
Defines the dematrix function for the demodulated FM signal
bit[7:0]
00hex
01hex
02hex
03hex
04hex
no matrix (used for bilingual and unmatrixed stereo sound)
German stereo (Standard B/G)
Korean stereo (also used for BTSC, EIA-J and FM Radio)
sound A mono (left and right channel contain the mono
sound of the FM/AM mono carrier)
sound B mono
In case of Automatic Sound Select = on, the FM Matrix Mode is set automatically. Writing to the FM/AM prescale register (00 0Ehex high part) is still allowed.
In order not to disturb the automatic process, the low part of any I2C transmission to this register is ignored. Therefore, any FM-Matrix readback values may
differ from data written previously.
In case of Automatic Sound Select = off, the FM Matrix Mode must be set as
shown in Table 6–17 of Appendix B.
To enable a Forced Mono Mode for all analog stereo systems by overriding the
internal pilot or identification evaluation, the following steps must be transmitted:
1. MODUS with bit[0] = 0 (Automatic Sound Select off)
2. FM Presc./Matrix with FM Matrix = Sound A Mono (SAP: Sound B Mono)
3. Select FM/AM source channel, with channel matrix set to “Stereo” (transparent)
00 10hex
PRE_NICAM
NICAM Prescale
Defines the input prescale value for the digital NICAM signal
bit[15:8]
00hex ... 7Fhex prescale gain
examples:
00hex
20hex
5Ahex
7Fhex
00 16hex
00 12hex
off
0 dB gain
9 dB gain (recommendation)
+12 dB gain (maximum gain)
I2S1 Prescale
I2S2 Prescale
PRE_I2S1
PRE_I2S2
Defines the input prescale value for digital I2S input signals
bit[15:8]
00hex ... 7Fhex prescale gain
examples:
off
00hex
0 dB gain (recommendation)
10hex
+18 dB gain (maximum gain)
7Fhex
Micronas
33
MSP 34x2G
PRELIMINARY DATA SHEET
Table 3–11: Write Registers on I2C Subaddress 12hex, continued
Register
Address
Function
Name
00 0Dhex
SCART Input Prescale
PRE_SCART
Defines the input prescale value for the analog SCART input signal
bit[15:8]
00hex ... 7Fhex prescale gain
examples:
off
00hex
0 dB gain (2 VRMS input leads to digital full scale)
19hex
Due to the Dolby requirements, this is the maximum
value allowed to prohibit clipping of a 2 VRMS input signal.
+14 dB gain (400 mVRMS input leads to digital full scale)
7Fhex
SOURCE SELECT AND OUTPUT CHANNEL MATRIX
00 08hex
00 09hex
00 0Ahex
00 41hex
00 0Bhex
00 0Chex
Source for:
Loudspeaker Output
Headphone Output
SCART1 DA Output
SCART2 DA Output
I2S Output
Quasi-Peak Detector
bit[15:8]
0
“FM/AM”: demodulated FM or AM mono signal
1
“Stereo or A/B”: demodulator Stereo or A/B signal
(in manual mode, this source is identical to the NICAM
source in the MSP 3410D)
3
“Stereo or A”: demodulator Stereo Sound or
Language A (only defined for Automatic Sound Select)
4
“Stereo or B”: demodulator Stereo Sound or
Language B (only defined for Automatic Sound Select)
2
SCART input
5
I2S1 input
6
I2S2 input
SRC_MAIN
SRC_AUX
SRC_SCART1
SRC_SCART2
SRC_I2S
SRC_QPEAK
For demodulator sources, see Table 2–2.
00 08hex
00 09hex
00 0Ahex
00 41hex
00 0Bhex
00 0Chex
Matrix Mode for:
Loudspeaker Output
Headphone Output
SCART1 DA Output
SCART2 DA Output
I2S Output
Quasi-Peak Detector
bit[7:0]
00hex
10hex
20hex
30hex
MAT_MAIN
MAT_AUX
MAT_SCART1
MAT_SCART2
MAT_I2S
MAT_QPEAK
Sound A Mono (or Left Mono)
Sound B Mono (or Right Mono)
Stereo (transparent mode)
Mono (sum of left and right inputs divided by 2)
special modes are available
(see Section 6.5.1. on page 97)
In Automatic Sound Select mode, the demodulator source channels are set
according to Table 2–2. Therefore, the matrix modes of the corresponding output
channels should be set to “Stereo” (transparent).
34
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
Table 3–11: Write Registers on I2C Subaddress 12hex, continued
Register
Address
Function
Name
LOUDSPEAKER AND HEADPHONE PROCESSING
00 00hex
00 06hex
VOL_MAIN
VOL_AUX
Volume Loudspeaker
Volume Headphone
bit[15:8]
volume table with 1 dB step size
+12 dB (maximum volume)
7Fhex
7Ehex
+11 dB
...
74hex
+1 dB
73hex
0 dB
−1 dB
72hex
...
02hex
−113 dB
01hex
−114 dB
00hex
Mute (reset condition)
Fast Mute (needs about 75 ms until the signal is
FFhex
completely ramped down)
bit[7:5]
higher resolution volume table
0
+0 dB
1
+0.125 dB increase in addition to the volume table
...
7
+0.875 dB increase in addition to the volume table
bit[4]
0
bit[3:0]
clipping mode
0
reduce volume
1
reduce tone control
2
compromise mode
must be set to 0
With large scale input signals, positive volume settings may lead to signal clipping.
The MSP 34x2G loudspeaker and headphone volume function is divided into a
digital and an analog section. With Fast Mute, volume is reduced to mute position by digital volume only. Analog volume is not changed. This reduces any
audible DC plops. To turn volume on again, the volume step that has been used
before Fast Mute was activated must be transmitted.
If the clipping mode is set to “Reduce Volume”, the following rule is used: To prevent severe clipping effects with bass, treble, or equalizer boosts, the internal
volume is automatically limited to a level where, in combination with either bass,
treble, or equalizer setting, the amplification does not exceed 12 dB.
If the clipping mode is “Reduce Tone Control”, the bass or treble value is
reduced if amplification exceeds 12 dB. If the equalizer is switched on, the gain
of those bands is reduced, where amplification together with volume exceeds
12 dB.
If the clipping mode is “Compromise Mode”, the bass or treble value and volume
are reduced half and half if amplification exceeds 12 dB. If the equalizer is
switched on, the gain of those bands is reduced half and half, where amplification together with volume exceeds 12 dB.
Example:
Red. Volume
Red. Tone Con.
Compromise
Micronas
Vol.: +6 dB
3
6
4.5
Bass: +9 dB
9
6
7.5
Treble: +5 dB
5
5
5
35
MSP 34x2G
PRELIMINARY DATA SHEET
Table 3–11: Write Registers on I2C Subaddress 12hex, continued
Register
Address
Function
00 29hex
Automatic Volume Correction (AVC) Loudspeaker Channel
00 01hex
00 30hex
Name
bit[15:12] 00hex
08hex
AVC off (and reset internal variables)
AVC on
AVC
bit[11:8]
8 s decay time
4 s decay time
2 s decay time
20 ms decay time (should be used for approx. 100 ms
after channel change)
AVC_DECAY
08hex
04hex
02hex
01hex
Balance Loudspeaker Channel
Balance Headphone Channel
bit[15:8]
Linear Mode
Left muted, Right 100%
7Fhex
Left 0.8%, Right 100%
7Ehex
...
Left 99.2%, Right 100%
01hex
Left 100%, Right 100%
00hex
Left 100%, Right 99.2%
FFhex
...
Left 100%, Right 0.8%
82hex
Left 100%, Right muted
81hex
bit[15:8]
Logarithmic Mode
Left −127 dB, Right 0 dB
7Fhex
Left −126 dB, Right 0 dB
7Ehex
...
Left −1 dB, Right 0 dB
01hex
Left 0 dB, Right 0 dB
00hex
Left 0 dB, Right −1 dB
FFhex
...
Left 0 dB, Right −127 dB
81hex
Left 0 dB, Right −128 dB
80hex
bit[3:0]
Balance Mode
linear
0hex
logarithmic
1hex
BAL_MAIN
BAL_AUX
Positive balance settings reduce the left channel without affecting the right channel; negative settings reduce the right channel leaving the left channel unaffected.
36
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
Table 3–11: Write Registers on I2C Subaddress 12hex, continued
Register
Address
Function
Name
00 20hex
Tone Control Mode Loudspeaker Channel
TONE_MODE
bit[15:8]
00hex
FFhex
bass and treble is active
equalizer is active
Defines whether Bass/Treble or Equalizer is activated for the loudspeaker channel. Bass and Equalizer cannot work simultaneously. If Equalizer is used, Bass,
and Treble coefficients must be set to zero and vice versa.
Note: In the MULTI_CHANNEL mode, the equalizer cannot be used.
00 02hex
00 31hex
Bass Loudspeaker Channel
Bass Headphone Channel
bit[15:8]
normal range
+12 dB
60hex
58hex
+11 dB
...
08hex
+1 dB
00hex
0 dB
−1 dB
F8hex
...
A8hex
−11 dB
A0hex
−12 dB
bit[15:8]
extended range
7Fhex
+20 dB
78hex
+18 dB
70hex
+16 dB
68hex
+14 dB
BASS_MAIN
BASS_AUX
Higher resolution is possible: an LSB step in the normal range results in a gain
step of about 1/8 dB, in the extended range about 1/4 dB.
With positive bass settings, internal clipping may occur even with overall volume
less than 0 dB. This will lead to a clipped output signal. Therefore, it is not recommended to set bass to a value that, in conjunction with volume, would result
in an overall positive gain.
Micronas
37
MSP 34x2G
PRELIMINARY DATA SHEET
Table 3–11: Write Registers on I2C Subaddress 12hex, continued
Register
Address
Function
Name
00 03hex
00 32hex
Treble Loudspeaker Channel
Treble Headphone Channel
TREB_MAIN
TREB_AUX
bit[15:8]
78hex
70hex
...
08hex
00hex
F8hex
...
A8hex
A0hex
+15 dB
+14 dB
+1 dB
0 dB
−1 dB
−11 dB
−12 dB
Higher resolution is possible: an LSB step results in a gain step of about 1/8 dB.
With positive treble settings, internal clipping may occur even with overall volume less than 0 dB. This will lead to a clipped output signal. Therefore, it is not
recommended to set treble to a value that, in conjunction with volume, would
result in an overall positive gain.
00 21hex
00 22hex
00 23hex
00 24hex
00 25hex
Equalizer Loudspeaker Channel Band 1 (below 120 Hz)
Equalizer Loudspeaker Channel Band 2 (center: 500 Hz)
Equalizer Loudspeaker Channel Band 3 (center: 1.5 kHz)
Equalizer Loudspeaker Channel Band 4 (center: 5 kHz)
Equalizer Loudspeaker Channel Band 5 (above: 10 kHz)
bit[15:8]
60hex
58hex
...
08hex
00hex
F8hex
...
A8hex
A0hex
EQUAL_BAND1
EQUAL_BAND2
EQUAL_BAND3
EQUAL_BAND4
EQUAL_BAND5
+12 dB
+11 dB
+1 dB
0 dB
−1 dB
−11 dB
−12 dB
Higher resolution is possible: an LSB step results in a gain step of about 1/8 dB.
With positive equalizer settings, internal clipping may occur even with overall volume less than 0 dB. This will lead to a clipped output signal. Therefore, it is not
recommended to set equalizer bands to a value that, in conjunction with volume,
would result in an overall positive gain.
38
Micronas
PRELIMINARY DATA SHEET
MSP 34x2G
Table 3–11: Write Registers on I2C Subaddress 12hex, continued
Register
Address
Function
Name
00 04hex
00 33hex
Loudness Loudspeaker Channel
Loudness Headphone Channel
LOUD_MAIN
LOUD_AUX
bit[15:8]
Loudness Gain
+17 dB
44hex
40hex
+16 dB
...
04hex
+1 dB
00hex
0 dB
bit[7:0]
Loudness Mode
normal (constant volume at 1 kHz)
00hex
Super Bass (constant volume at 2 kHz)
04hex
Higher resolution of Loudness Gain is possible: An LSB step results in a gain
step of about 1/4 dB.
Loudness increases the volume of low- and high-frequency signals, while keeping the amplitude of the 1-kHz reference frequency constant. The intended loudness has to be set according to the actual volume setting. Because loudness
introduces gain, it is not recommended to set loudness to a value that, in conjunction with volume, would result in an overall positive gain.
The corner frequency for bass amplification can be set to two different values. In
Super Bass mode, the corner frequency is shifted up. The point of constant volume is shifted from 1 kHz to 2 kHz.
Micronas
39
MSP 34x2G
PRELIMINARY DATA SHEET
Table 3–11: Write Registers on I2C Subaddress 12hex, continued
Register
Address
Function
Name
00 05hex
Spatial Effects Loudspeaker Channel
SPAT_MAIN
bit[15:8]
Effect Strength
Enlargement 100%
7Fhex
Enlargement 50%
3Fhex
...
Enlargement 1.5%
01hex
Effect off
00hex
reduction 1.5%
FFhex
...
reduction 50%
C0hex
reduction 100%
80hex
bit[7:4]
Spatial Effect Mode
Stereo Basewidth Enlargement (SBE) and
0hex
Pseudo Stereo Effect (PSE). (Mode A)
Stereo Basewidth Enlargement (SBE) only. (Mode B)
2hex
bit[3:0]
Spatial Effect High-Pass Gain
max. high-pass gain
0hex
2/3 high-pass gain
2hex
1/3 high-pass gain
4hex
min. high-pass gain
6hex
automatic
8hex
Spatial effects should not be used together with 3D-PANORAMA or
PANORAMA.
There are several spatial effect modes available:
In mode A (low byte = 00hex), the spatial effect depends on the source mode. If
the incoming signal is mono, Pseudo Stereo Effect is active; for stereo signals,
Pseudo Stereo Effect and Stereo Basewidth Enlargement is effective. The
strength of the effect is controllable by the upper byte. A negative value reduces
the stereo image. A strong spatial effect is recommended for small TV sets
where loudspeaker spacing is rather close. For large screen TV sets, a more
moderate spatial effect is recommended.
In mode B, only Stereo Basewidth Enlargement is effective. For mono input signals, the Pseudo Stereo Effect has to be switched on.
It is worth mentioning, that all spatial effects affect amplitude and phase
response. With the lower 4 bits, the frequency response can be customized. A
value of 0hex yields a flat response for center signals (L = R), but a high-pass
function for L or R only signals. A value of 6hex has a flat response for L or R only
signals, but a low-pass function for center signals. By using 8hex, the frequency
response is automatically adapted to the sound material by choosing an optimal
high-pass gain.
40
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
Table 3–11: Write Registers on I2C Subaddress 12hex, continued
Register
Address
Function
Name
SUBWOOFER OUTPUT CHANNEL
00 2Chex
Subwoofer Level Adjustment
bit[15:8]
00 2Dhex
00hex
FFhex
...
E3hex
E2hex
...
80hex
0 dB
−1 dB
−29 dB
−30 dB
Mute
Subwoofer Corner Frequency
bit[15:8]
5...40
SUBW_LEVEL
SUBW_FREQ
corner frequency in 10-Hz steps (range: 50...400 Hz)
Subwoofer Complementary High-Pass Filter
bit[7:0]
00hex
01hex
loudspeaker channel unfiltered
a complementary high-pass is processed in the
loudspeaker output channel
SUBW_HP
SCART OUTPUT CHANNEL
00 07hex
00 40hex
Micronas
Volume SCART1 Output Channel
Volume SCART2 Output Channel
bit[15:8]
volume table with 1 dB step size
+12 dB (maximum volume)
7Fhex
7Ehex
+11 dB
...
74hex
+1 dB
73hex
0 dB
−1 dB
72hex
...
02hex
−113 dB
01hex
−114 dB
00hex
Mute (reset condition)
bit[7:5]
higher resolution volume table
0
+0 dB
1
+0.125 dB increase in addition to the volume table
...
7
+0.875 dB increase in addition to the volume table
bit[4:0]
01hex
VOL_SCART1
VOL_SCART2
this must be 01hex
41
MSP 34x2G
PRELIMINARY DATA SHEET
Table 3–11: Write Registers on I2C Subaddress 12hex, continued
Register
Address
Function
Name
SCART SWITCHES AND DIGITAL I/O PINS
00 13hex
ACB_REG
ACB Register
Defines the level of the digital output pins and the position of the SCART
switches
bit[15]
0/1
low/high of digital output pin D_CTR_I/O_0 (MODUS[3]=0)
bit[14]
0/1
low/high of digital output pin D_CTR_I/O_1 (MODUS[3]=0)
bit[13:5]
SCART DSP Input Select
xxxx00xx0 SCART1 to DSP input (RESET position)
xxxx01xx0 MONO to DSP input (Sound A Mono must be selected in
the channel matrix mode for the corresponding output
channels)
xxxx10xx0 SCART2 to DSP input
xxxx11xx0 SCART3 to DSP input
xxxx00xx1 SCART4 to DSP input
xxxx11xx1 mute DSP input
bit[13:5]
SCART1 Output Select
xx00xxx0x SCART3 input to SCART1 output (RESET position)
xx01xxx0x SCART2 input to SCART1 output
xx10xxx0x MONO input to SCART1 output
xx11xxx0x SCART1 DA to SCART1 output
xx00xxx1x SCART2 DA to SCART1 output
xx01xxx1x SCART1 input to SCART1 output
xx10xxx1x SCART4 input to SCART1 output
xx11xxx1x mute SCART1 output
bit[13:5]
SCART2 Output Select
00xxxx0xx SCART1 DA to SCART2 output (RESET position)
01xxxx0xx SCART1 input to SCART2 output
10xxxx0xx MONO input to SCART2 output
00xxxx1xx SCART2 DA to SCART2 output
01xxxx1xx SCART2 input to SCART2 output
10xxxx1xx SCART3 input to SCART2 output
11xxxx1xx SCART4 input to SCART2 output
11xxxx0xx mute SCART2 output
The RESET position becomes active at the time of the first write transmission on
the control bus to the audio processing part. By writing to the ACB register first,
the RESET state can be redefined.
BEEPER
00 14hex
42
Beeper Volume and Frequency
bit[15:8]
Beeper Volume
off
00hex
maximum volume
7Fhex
bit[7:0]
Beeper Frequency
16 Hz (lowest)
01hex
1 kHz
40hex
4 kHz
FFhex
BEEPER
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
Table 3–11: Write Registers on I2C Subaddress 12hex, continued
Register
Address
Function
Name
SURROUND PROCESSING
00 48hex
Output Configuration
OUT_CONF
bit[15]
HP_CS
HP/CS Switch
0
Headphone outputs are active (pin names: DACA_L,
DACA_R), CS outputs are muted
1
Center/Surround outputs are active (pin names:
DACM_C, DACM_S), HP outputs are muted
(C corresponds to headphone L, S to headphone R)
The HP/CS switch defines which output pin pair is driven by the DA converters
that are used for headphone or surround processing. The unselected pins are
muted. This makes it convenient to connect the center/surround amplifiers or
outputs to the MSP 34x2G without external switches. The Headphone/Surround
channel should be muted before switching (Set Register 06hex to: 0000hex).
Allow at least 2 s for settling to avoid audible plops.
bit[14:8]
bit[7:0]
00 49hex
Channel Configuration
00hex
STEREO: This mode is used in plain stereo mode. Standard processing applies to the loudspeaker and headphone channels. Surround processing is switched off. In
this mode, the IC is compatible to the MSP 3450G (if
bit[15] is equal to 0).
01hex
TWO_CHANNEL: This mode is used for virtual surround
sound. The surround processing block is active and its left
and right outputs are distributed to the loudspeaker output
channel. The processing on the headphone channel
remains standard. In this mode, the IC is comparable to
the MSP 3451G.
02hex
MULTI_CHANNEL: This mode is used for surround sound
with more than 2 channels. The surround processing block
is active and its left and right outputs are distributed to the
loudspeaker output channel, its center and surround outputs are distributed to the headphone output channel. No
headphone processing is possible. In this mode, it is convenient to select the newly implemented C/S pins by setting bit[15] to 1.
00hex
must be 0
Spatial Effects for Surround Processing
bit[15:8]
Spatial Effect Strength
Enlargement 100%
7Fhex
Enlargement 50%
3Fhex
...
Enlargement 1.5%
01hex
Effect off
00hex
bit[7:0]
00hex
CHAN_CONF
SUR_SPAT
must be 0
Increases the perceived basewidth of the reproduced left and right front channels. Recommended value: 50% = 40hex. In contrast to the spatial effect for the
loudspeaker channel, the surround spatial effect is optimized for surround
sound. Note: If surround sound processing is active, the spatial effect for the
loudspeaker channel (Register 05hex) is switched off.
Micronas
43
MSP 34x2G
PRELIMINARY DATA SHEET
Table 3–11: Write Registers on I2C Subaddress 12hex, continued
Register
Address
Function
Name
00 4Ahex
Virtual Surround Effect Strength
SUR_3DEFF
bit[15:8]
bit[7:0]
Virtual Surround Effect Strength
Effect 100%
7Fhex
Effect 50%
3Fhex
...
01hex
00hex
Effect 1.5%
Effect off
00hex
must be 0
Strength of the surround effect in PANORAMA or 3D-PANORAMA mode. In
other Surround Reproduction Modes this value must be set to 0. Recommended
value: 66% = 54hex.
00 4Bhex
Surround Processing Mode
SUR_MODE
bit[15:8]
Decoder Matrix
ADAPTIVE (for all Dolby Surround Pro Logic and Virtual
00hex
Surround modes)
PASSIVE (for simple surround modes)
10hex
EFFECT (used for special effects and monophonic
20hex
signals)
DEC_MAT
bit[7:4]
Surround Reproduction
SUR_REPRO
bit[3:0]
0hex
REAR_SPEAKER: The surround signal is reproduced by a
rear speaker.
3hex
FRONT_SPEAKER: The surround signal is redirected to
the front channels. There is no physical rear speaker connected.
5hex
PANORAMA: The surround signal is processed and redirected to the left and right front speakers in order to create
the illusion of a virtual rear speaker, although no physical
rear speaker is connected.
6hex
3D-PANORAMA: The surround signal is processed and
redirected to the left and right front speakers in order to
create the illusion of a virtual rear speaker, although no
physical rear speaker is connected.
Center Mode
0hex
1hex
2hex
3hex
44
C_MODE
PHANTOM mode (no Center speaker connected)
NORMAL mode (small Center speaker)
WIDE mode (large Center speaker)
OFF mode (Center output of the Surround Decoder is
discarded. Useful only in special effect modes)
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
Table 3–11: Write Registers on I2C Subaddress 12hex, continued
Register
Address
Function
Name
00 4Chex
Surround Delay
SUR_DELAY
bit[15:8]
bit[7:0]
05hex
06hex
...
1Fhex
5 ms delay in surround path (lowest)
6 ms delay in surround path
00hex
must be 0
31 ms delay in surround path (highest))
For Dolby Surround Pro Logic designs, only 20 ms fixed or 15-30 ms variable
delay must be used. This register has no effect in 3D-PANORAMA and PANORAMA mode.
00 4Dhex
SUR_NOISE
Noise Generator
bit[15:8]
00hex
80hex
Noise generator off
Noise generator on
bit[7:0]
A0hex
B0hex
C0hex
D0hex
Noise on left channel
Noise on center channel
Noise on right channel
Noise on surround channel
Determines the active channel for the noise generator.
Micronas
45
MSP 34x2G
PRELIMINARY DATA SHEET
3.3.2.7. Read Registers on I2C Subaddress 13hex
Table 3–12: Read Registers on I2C Subaddress 13hex
Register
Address
Function
Name
QUASI-PEAK DETECTOR READOUT
00 19hex
00 1Ahex
Quasi-Peak Detector Readout Left
Quasi-Peak Detector Readout Right
bit[15:0]
QPEAK_L
QPEAK_R
0hex... 7FFFhex values are 16 bit two’s complement (only positive)
MSP 34x2G VERSION READOUT Registers
00 1Ehex
MSP Hardware Version Code
bit[15:8]
01hex
MSP_HARD
MSP 3452G - A1
A change in the hardware version code defines hardware optimizations that
may have influence on the chip’s behavior. The readout of this register is identical to the hardware version code in the chip’s imprint.
MSP Major Revision Code
bit[7:0]
07hex
MSP_REVISION
MSP 3452G - A1
The major revision code of the MSP 3452G is 7.
00 1Fhex
MSP_PRODUCT
MSP Product Code
bit[15:8]
34hex
MSP 3452G - A1
By means of the MSP-Product Code, the control processor is able to decide
which TV sound standards and audio baseband features have to be considered.
MSP ROM Version Code
bit[7:0]
41hex
MSP_ROM
MSP 3452G - A1
A change in the ROM version code defines internal software optimizations,
that may have influence on the chip’s behavior, e.g. new features may have
been included. While a software change is intended to create no compatibility
problems, customers that want to use the new functions can identify new
MSP 3452G versions according to this number.
To avoid compatibility problems with MSP 3410B and MSP 34x0D, an offset of
40hex is added to the ROM version code of the chip’s imprint.
46
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
3.4. Programming Tips
3.5. Examples of Minimum Initialization Codes
This section describes the preferred method for initializing the MSP 34x2G. The initialization is grouped into
four sections:
Initialization of the MSP 34x2G according to these listings reproduces sound of the selected standard on the
loudspeaker output. All numbers are hexadecimal. The
examples have the following structure:
– SCART Signal Path (analog signal path)
– Demodulator Input
– SCART and I2S Inputs
– Output Channels
See Fig. 2–1 on page 9 for a complete signal flow.
1. Perform an I2C controlled reset of the IC.
2. Write MODUS register
(with Automatic Sound Select).
3. Set Source Selection for loudspeaker channel
(with matrix set to STEREO).
4. Set Prescale
(FM and/or NICAM and dummy FM matrix).
SCART Signal Path
1. Select analog input for the SCART baseband processing (SCART DSP Input Select) by means of the
ACB register.
2. Select the source for each analog SCART output
(SCART Output Select) by means of the ACB register.
5. Write STANDARD SELECT register.
6. Set Volume loudspeaker channel to 0 dB.
3.5.1. SCART1 Input to Loudspeaker in
Stereo Sound
<80 00 80 00>
// reset
<80 00 00 00>
Demodulator Input
For a complete setup of the TV sound processing from
analog IF input to the source selection, the following
steps must be performed:
<80 12 00 08 02 20>
// source loudspeaker = scart, stereo
<80 12 00 0d 19 00>
// prescale scart
<80 12 00 00 73 00>
// volume main = 0dB
3.5.2. B/G-FM (A2 or NICAM)
1. Set MODUS register to the preferred mode and
Sound IF input.
<80 00 80 00>
2. Choose preferred prescale (FM and NICAM) values.
<80 10 00 30 20 03>
// MODUS-Register: Automatic = on
3. Write STANDARD SELECT register.
<80 12 00 08 03 20>
// Source Sel. = (St or A) & Ch. Matr. = St
<80 12 00 0E 24 03>
// FM/AM-Prescale = 24hex,
FM-Matrix = MONO/SOUNDA
<80 12 00 10 00 5A>
// NICAM-Prescale = 5Ahex
// Standard Select: A2 B/G or NICAM B/G
4. If Automatic Sound Select is not active:
Choose FM matrix repeatedly according to the
sound mode indicated in the STATUS register.
SCART and I2S Inputs
// Softreset
<80 00 00 00>
<80 10 00 20 00 03>
or
<80 10 00 20 00 08>
<80 12 00 00 73 00>
// Loudspeaker Volume 0 dB
1. Select preferred prescale for SCART.
2. Select preferred prescale for I2S inputs
(set to 0 dB after RESET).
3.5.3. BTSC-Stereo
<80 00 80 00>
// Softreset
<80 00 00 00>
Output Channels
1. Select the source channel and matrix for each output channel.
2. Set audio baseband processing.
<80 10 00 30 20 03>
// MODUS-Register: Automatic = on
<80 12 00 08 03 20>
// Source Sel. = (St or A) & Ch. Matr. = St
<80 12 00 0E 24 03>
// FM/AM-Prescale = 24hex,
FM-Matrix = Sound A Mono
<80 10 00 20 00 20>
// Standard Select: BTSC-STEREO
<80 12 00 00 73 00>
// Loudspeaker Volume 0 dB
3. Select volume for each output channel.
Micronas
47
MSP 34x2G
PRELIMINARY DATA SHEET
3.5.4. BTSC-SAP with SAP at Loudspeaker Channel
<80 12 00 4b 00 01>
// Dolby Surround Pro Logic Normal mode
<80 00 80 00>
<80 12 00 4c 14 00>
// 20 ms Delay
<80 12 00 4d 00 00>
// Noise Sequencer = off
// Softreset
<80 00 00 00>
<80 10 00 30 20 03>
// MODUS-Register: Automatic = on
<80 12 00 08 04 20>
// Source Sel. = (St or B) & Ch. Matr. = St
<80 12 00 0E 24 03>
// FM/AM-Prescale = 24hex,
FM-Matrix = Sound A Mono
<80 10 00 20 00 21>
// Standard Select: BTSC-SAP
<80 12 00 00 73 00>
// Loudspeaker Volume 0 dB
3.5.8. Virtual Dolby Surround Example
SCART1 Input to Loudspeaker in
3D-PANORAMA Sound
<80 00 80 00>
// reset
<80 00 00 00>
3.5.5. FM-Stereo Radio
<80 12 00 08 02 20>
// source loudspeaker = scart, stereo
<80 00 80 00>
<80 12 00 0d 12 00>
// prescale scart with some loss
<80 12 00 00 73 00>
// volume main = 0dB
// MODUS-Register: Automatic = on
<80 12 00 48 01 00>
// two channel virtual surround mode
// Source Sel. = (St or A) & Ch. Matr. = St
<80 12 00 49 40 00>
// Surround spatial effect = 50%
// FM/AM-Prescale = 24hex,
FM-Matrix = Sound A Mono
<80 12 00 4a 54 00>
// panorama sound effect = 66%
<80 12 00 4b 00 60>
// adaptive, 3d_panorama, phantom
<80 10 00 20 00 40>
// Standard Select: FM-STEREO-RADIO
<80 12 00 4d 00 00>
// Noise Sequencer = off
<80 12 00 00 73 00>
// Loudspeaker Volume 0 dB
// Softreset
<80 00 00 00>
<80 10 00 30 20 03>
<80 12 00 08 03 20>
<80 12 00 0E 24 03>
3.5.9. Noise Sequencer for Dolby Pro Logic
3.5.6. Automatic Standard Detection
// switch into Dolby Pro Logic sound (s.a.). Then:
A detailed software flow diagram is shown in Fig. 3–2
on page 49.
[wait for 2 seconds]
<80 00 80 00>
// Softreset
[wait for 2 seconds]
<80 10 00 30 20 03>
// MODUS-Register: Automatic = on
[wait for 2 seconds]
<80 12 00 08 03 20>
// Source Sel. = (St or A) & Ch. Matr. = St
<80 12 00 4d 80 d0>
<80 12 00 0E 24 03>
// FM/AM-Prescale = 24hex,
FM-Matrix = Sound A Mono
[wait for 2 seconds]
<80 12 00 10 00 5A>
// NICAM-Prescale = 5Ahex
// Standard Select:
Automatic Standard Detection
<80 00 00 00>
<80 10 00 20 00 01>
<80 12 00 4d 80 a0>
<80 12 00 4d 80 b0>
<80 12 00 4d 80 c0>
// Wait till STANDARD RESULT contains a value ≤ 07FF
// IF STANDARD RESULT contains 0000
// noise L
// noise C
// noise R
// noise S
// switch back to normal operation
<80 12 00 4d 00 00>
// Noise Sequencer = off
3.5.10. Software Flow for Interrupt driven STATUS
Check
// do some error handling
// ELSE
<80 12 00 00 73 00>
// Loudspeaker Volume 0 dB
A detailed software flow diagram is shown in Fig. 3–2
on page 49.
SCART1 Input to Loudspeaker and Center/Surround
Output Pins in Dolby Surround Pro Logic (Normal
mode).
If the D_CTR_I/O_1 pin of the MSP 34x2G is connected to an interrupt input pin of the controller, the following interrupt handler can be applied to be automatically called with each status change of the
MSP 34x2G. The interrupt handler may adjust the TV
display according to the new status information.
<80 00 80 00>
3.5.7. Dolby Surround Pro Logic Example
// reset
Interrupt Handler:
<80 00 00 00>
<80 11 02 00 <81 dd dd> // Read STATUS
<80 12 00 08 02 20>
// source loudspeaker = scart, stereo
// adjust TV display with given status information
<80 12 00 0d 19 00>
// prescale scart
// Return from Interrupt
<80 12 00 00 70 00>
// volume main = -3dB
<80 12 00 06 73 00>
// volume center/surround = 0dB
<80 12 00 48 82 00>
// multi channel mode with C/S outputs
used
<80 12 00 49 00 00>
// Surround spatial effect = 0%
<80 12 00 4a 00 00>
// panorama sound effect = off
48
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
Write MODUS Register:
Example for the essential bits:
[0] = 1
Automatic Sound Select = on
[1] = 1
Enable interrupt if STATUS changes
[8] = 0
ANA_IN1+ is selected
Define Preference for Automatic Standard
Detection:
[12] = 0
If 6.5 MHz, set SECAM-L
[14:13] = 3 Ignore 4.5 MHz carrier
Write SOURCE SELECT Settings
Example:
set loudspeaker Source Select to "Stereo or A"
set headphone Source Select to "Stereo or B"
set SCART_Out Source Select to "Stereo or A/B"
set Channel Matrix mode for all outputs to "Stereo"
Write FM/AM-Prescale
Write NICAM-Prescale
Write 01 into
STANDARD SELECT Register
(Start Automatic Standard Detection)
set previous standard or
set standard manually according
picture information
yes
Result = 0
?
no
expecting MSPG-interrupt
In case of interrupt from
MSP to Controller:
Read STATUS
Adjust TV-Display
If Bilingual, adjust Source Select setting if required
Fig. 3–2: Software flow diagram for a Minimum demodulator setup for a European Multistandard TV set applying the
Automatic Sound Select feature
Micronas
49
MSP 34x2G
PRELIMINARY DATA SHEET
4. Specifications
4.1. Outline Dimensions
23 x 0.8 = 18.4 ± 0.1
0.17 ± 0.04
41
40
80
25
1
14 ± 0.1
0.37 ± 0.04
17.2 ± 0.15
0.8
65
15 x 0.8 = 12.0 ± 0.1
64
0.8
1.3 ± 0.05
24
2.7 ± 0.1
23.2 ± 0.15
3 ±0.2
20 ± 0.1
0.1
SPGS705000-3(P80)/1E
Fig. 4–1:
80-Pin Plastic Quad Flat Pack
(PQFP80)
Weight approximately 1.61 g
Dimensions in mm
15 x 0.5 = 7.5 ± 0.1
0.145 ± 0.055
64
17
0.22 ± 0.05
1.75
1
16
1.4 ± 0.05
1.75
12 ± 0.2
15 x 0.5 = 7.5 ± 0.1
32
12 ± 0.2
49
0.5
33
10 ± 0.1
48
0.5
1.5 ± 0.1
0.1
10 ± 0.1
D0025/3E
Fig. 4–2:
64-Pin Plastic Low-Profile Quad Flat Pack
(PLQFP64)
Weight approximately 0.35 g
Dimensions in mm
50
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
SPGS0016-5(P64)/1E
33
1
32
19.3 ±0.1
18 ±0.05
0.8 ±0.2
3.8 ±0.1
64
57.7 ±0.1
0.48 ±0.06
1.778
3.2 ±0.2
0.28 ±0.06
1 ±0.05
20.3 ±0.5
31 x 1.778 = 55.1 ±0.1
Fig. 4–3:
64-Pin Plastic Shrink Dual-Inline Package
(PSDIP64)
Weight approximately 9.0 g
Dimensions in mm
4.2. Pin Connections and Short Descriptions
NC = not connected; leave vacant
LV = if not used, leave vacant
X = obligatory; connect as described in circuit diagram
DVSS: if not used, connect to DVSS
AHVSS: connect to AHVSS
Pin No.
Pin Name
Type
Connection
Short Description
(if not used)
PQFP
80-pin
PLQFP
64-pin
PSDIP
64-pin
1
64
8
NC
2
1
9
I2C_CL
3
2
10
4
3
5
LV
Not connected
IN/OUT
X
I2C clock
I2C_DA
IN/OUT
X
I2C data
11
I2S_CL
IN/OUT
LV
I2S clock
4
12
I2S_WS
IN/OUT
LV
I2S word strobe
6
5
13
I2S_DA_OUT
OUT
LV
I2S data output
7
6
14
I2S_DA_IN1
IN
LV
I2S1 data input
8
7
15
ADR_DA
OUT
LV
ADR data output
9
8
16
ADR_WS
OUT
LV
ADR word strobe
10
9
17
ADR_CL
OUT
LV
ADR clock
11
−
−
DVSUP
X
Digital power supply 5 V
12
−
−
DVSUP
X
Digital power supply 5 V
13
10
18
DVSUP
X
Digital power supply 5 V
Micronas
51
MSP 34x2G
Pin No.
PRELIMINARY DATA SHEET
Pin Name
Type
Connection
Short Description
(if not used)
PQFP
80-pin
PLQFP
64-pin
PSDIP
64-pin
14
−
−
DVSS
X
Digital ground
15
−
−
DVSS
X
Digital ground
16
11
19
DVSS
X
Digital ground
17
12
20
I2S_DA_IN2
LV
I2S2-data input
18
13
21
NC
LV
Not connected
19
14
22
NC
LV
Not connected
20
15
23
NC
LV
Not connected
21
16
24
RESETQ
X
Power-on-reset
22
−
−
NC
LV
Not connected
23
−
−
NC
LV
Not connected
24
17
25
DACA_R
OUT
LV
Headphone out, right
25
18
26
DACA_L
OUT
LV
Headphone out, left
26
19
27
VREF2
X
Reference ground 2
27
20
28
DACM_R
OUT
LV
Loudspeaker out, right
28
21
29
DACM_L
OUT
LV
Loudspeaker out, left
29
22
30
DACM_C
OUT
LV
Center output
30
23
31
DACM_SUB
OUT
LV
Subwoofer output
31
24
32
DACM_S
OUT
LV
Surround output
32
−
−
NC
LV
Not connected
33
25
33
SC2_OUT_R
OUT
LV
SCART output 2, right
34
26
34
SC2_OUT_L
OUT
LV
SCART output 2, left
35
27
35
VREF1
X
Reference ground 1
36
28
36
SC1_OUT_R
OUT
LV
SCART output 1, right
37
29
37
SC1_OUT_L
OUT
LV
SCART output 1, left
38
30
38
CAPL_A
X
Volume capacitor AUX
39
31
39
AHVSUP
X
Analog power supply 8 V
40
32
40
CAPL_M
X
Volume capacitor MAIN
41
−
−
NC
LV
Not connected
42
−
−
NC
LV
Not connected
43
−
−
AHVSS
X
Analog ground
44
33
41
AHVSS
X
Analog ground
52
IN
IN
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
Pin No.
Pin Name
Type
Connection
Short Description
(if not used)
PQFP
80-pin
PLQFP
64-pin
PSDIP
64-pin
45
34
42
AGNDC
X
Analog reference
voltage
46
−
−
NC
LV or AHVSS
Not connected
47
35
43
SC4_IN_L
IN
LV
SCART 4 input, left
48
36
44
SC4_IN_R
IN
LV
SCART 4 input, right
49
37
45
ASG
AHVSS
Analog Shield Ground
50
38
46
SC3_IN_L
IN
LV
SCART 3 input, left
51
39
47
SC3_IN_R
IN
LV
SCART 3 input, right
52
40
48
ASG
AHVSS
Analog Shield Ground
53
41
49
SC2_IN_L
IN
LV
SCART 2 input, left
54
42
50
SC2_IN_R
IN
LV
SCART 2 input, right
55
43
51
ASG
AHVSS
Analog Shield Ground
56
44
52
SC1_IN_L
IN
LV
SCART 1 input, left
57
45
53
SC1_IN_R
IN
LV
SCART 1 input, right
58
46
54
VREFTOP
X
Reference voltage IF
A/D converter
59
−
−
NC
LV
Not connected
60
47
55
MONO_IN
LV
Mono input
61
−
−
AVSS
X
Analog ground
62
48
56
AVSS
X
Analog ground
63
−
−
NC
LV
Not connected
64
−
−
NC
LV
Not connected
65
−
−
AVSUP
X
Analog power supply 5 V
66
49
57
AVSUP
X
Analog power supply 5 V
67
50
58
ANA_IN1+
IN
LV
IF input 1
68
51
59
ANA_IN−
IN
AVSS via 56 pF /
LV
IF common (can be left vacant,
only if IF input 1 is also not in
use)
69
52
60
ANA_IN2+
IN
AVSS via 56 pF /
LV
IF input 2 (can be left vacant,
only if IF input 1 is also not in
use)
70
53
61
TESTEN
IN
X
Test pin
71
54
62
XTAL_IN
IN
X
Crystal oscillator
72
55
63
XTAL_OUT
OUT
X
Crystal oscillator
Micronas
IN
53
MSP 34x2G
Pin No.
PRELIMINARY DATA SHEET
Pin Name
Type
Connection
Short Description
(if not used)
PQFP
80-pin
PLQFP
64-pin
PSDIP
64-pin
73
56
64
TP
74
57
1
AUD_CL_OUT
75
58
2
76
59
77
LV
Test pin
LV
Audio clock output
(18.432 MHz)
NC
LV
Not connected
3
NC
LV
Not connected
60
4
D_CTR_I/O_1
IN/OUT
LV
D_CTR_I/O_1
78
61
5
D_CTR_I/O_0
IN/OUT
LV
D_CTR_I/O_0
79
62
6
ADR_SEL
IN
X
I2C Bus address select
80
63
7
STANDBYQ
IN
X
Stand-by (low-active)
OUT
4.3. Pin Descriptions
Pin numbers refer to the 80-pin PQFP package.
Pin 1, NC – Pin not connected.
Pin 2, I2C_CL – I2C Clock Input/Output (Fig. 4–8)
Via this pin, the I2C-bus clock signal has to be supplied. The signal can be pulled down by the MSP in
case of wait conditions.
Pin 3, I2C_DA – I2C Data Input/Output (Fig. 4–8)
Via this pin, the I2C-bus data is written to or read from
the MSP.
Pin 4, I2S_CL – I2S Clock Input/Output (Fig. 4–11)
Clock line for the I2S bus. In master mode, this line is
driven by the MSP; in slave mode, an external I2S
clock has to be supplied.
Pin 9, ADR_WS – ADR Bus Word Strobe Output
(Fig. 4–7)
Word strobe output for the ADR bus.
Pin 10, ADR_CL – ADR Bus Clock Output (Fig. 4–7)
Clock line for the ADR bus.
Pins 11, 12, 13, DVSUP* – Digital Supply Voltage
Power supply for the digital circuitry of the MSP. Must
be connected to a +5 V power supply.
Pins 14, 15, 16, DVSS* – Digital Ground
Ground connection for the digital circuitry of the MSP.
Pin 17, I2S_DA_IN2 – I2S Data Input 2 (Fig. 4–9)
Second input of digital serial sound data to the MSP
via the I2S bus.
Pin 5, I2S_WS – I2S Word Strobe Input/Output
(Fig. 4–11)
Word strobe line for the I2S bus. In master mode, this
line is driven by the MSP; in slave mode, an external
I2S word strobe has to be supplied.
Pins 18, 19, 20, NC – Pins not connected.
Pin 6, I2S_DA_OUT – I2S Data Output (Fig. 4–7)
Output of digital serial sound data of the MSP on the
I2S bus.
Pins 22, 23, NC – Pins not connected.
Pin 7, I2S_DA_IN1 – I2S Data Input 1 (Fig. 4–9)
First input of digital serial sound data to the MSP via
the I2S bus.
Pin 8, ADR_DA – ADR Bus Data Output (Fig. 4–7)
Output of digital serial data to the DRP 3510A via the
ADR bus.
54
Pin 21, RESETQ – Reset Input (Fig. 4–9)
In the steady state, high level is required. A low level
resets the MSP 34x2G.
Pins 24, 25, DACA_R/L – Headphone Outputs
(Fig. 4–17)
Output of the headphone signal. A 1-nF capacitor to
AHVSS must be connected to these pins. The DC offset on these pins depends on the selected headphone
volume.
Pin 26, VREF2 – Reference Ground 2
Reference analog ground. This pin must be connected
separately to the single ground point (AHVSS). VREF2
serves as a clean ground and should be used as the
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
reference for analog connections to the loudspeaker
and headphone outputs.
as possible. This input is sensitive for magnetic induction.
Pins 27, 28, DACM_R/L – Loudspeaker Outputs
(Fig. 4–17)
Output of the loudspeaker signal. A 1-nF capacitor to
AHVSS must be connected to these pins. The DC offset on these pins depends on the selected loudspeaker volume.
Pin 39, AHVSUP* – Analog Power Supply High Voltage
Power is supplied via this pin for the analog circuitry of
the MSP (except IF input). This pin must be connected
to the +8 V supply.
Pin 29, DACM_C - Center Output
(Fig. 4–17)
Output of the center loudspeaker signal. A 1-nF capacitor to AHVSS must be connected to these pins.
If active (HP/CS = 1), the DC offset on these pins
depends on the selected headphone volume.
Pin 30, DACM_SUB – Subwoofer Output (Fig. 4–17)
Output of the subwoofer signal. A 1-nF capacitor to
AHVSS must be connected to this pin. Due to the low
frequency content of the subwoofer output, the value
of the capacitor may be increased for better suppression of high-frequency noise. The DC offset on this pin
depends on the selected loudspeaker volume.
Pins 31, DACM_S - Surround Output
(Fig. 4–17)
Output of the surround loudspeaker signal. A 1-nF
capacitor to AHVSS must be connected to these pins.
If active (HP/CS = 1), the DC offset on these pins
depends on the selected headphone volume.
Pin 32 NC – Pin not connected.
Pins 33, 34, SC2_OUT_R/L – SCART2 Outputs
(Fig. 4–19)
Output of the SCART2 signal. Connections to these
pins must use a 100-Ω series resistor and are intended
to be AC-coupled.
Pin 35, VREF1 – Reference Ground 1
Reference analog ground. This pin must be connected
separately to the single ground point (AHVSS). VREF1
serves as a clean ground and should be used as the
reference for analog connections to the SCART outputs.
Pins 36, 37, SC1_OUT_R/L – SCART1 Outputs
(Fig. 4–19)
Output of the SCART1 signal. Connections to these
pins must use a 100-Ω series resistor and are intended
to be AC-coupled.
Pin 38, CAPL_A – Volume Capacitor Headphone
(Fig. 4–14)
A 10-µF capacitor to AHVSUP must be connected to
this pin. It serves as a smoothing filter for headphone
volume changes in order to suppress audible plops.
The value of the capacitor can be lowered to 1-µF if
faster response is required. The area encircled by the
trace lines should be minimized; keep traces as short
Micronas
Pin 40, CAPL_M – Volume Capacitor Loudspeaker
(Fig. 4–14)
A 10-µF capacitor to AHVSUP must be connected to
this pin. It serves as a smoothing filter for loudspeaker
volume changes in order to suppress audible plops.
The value of the capacitor can be lowered to 1 µF if
faster response is required. The area encircled by the
trace lines should be minimized; keep traces as short
as possible. This input is sensitive for magnetic induction.
Pins 41, 42, NC – Pins not connected.
Pins 43, 44, AHVSS* – Ground for Analog Power Supply High Voltage
Ground connection for the analog circuitry of the MSP
(except IF input).
Pin 45, AGNDC – Internal Analog Reference Voltage
This pin serves as the internal ground connection for
the analog circuitry (except IF input). It must be connected to the VREF pins with a 3.3-µF and a 100-nF
capacitor in parallel. This pins shows a DC level of typically 3.73 V.
Pin 46, NC – Pin not connected.
Pins 47, 48, SC4_IN_L/R – SCART4 Inputs
(Fig. 4–16)
The analog input signal for SCART4 is fed to this pin.
Analog input connection must be AC-coupled.
Pin 49, ASG – Analog Shield Ground
Analog ground (AHVSS) should be connected to this
pin to reduce cross-coupling between SCART inputs.
Pins 50, 51, SC3_IN_L/R – SCART3 Inputs
(Fig. 4–16)
The analog input signal for SCART3 is fed to this pin.
Analog input connection must be AC-coupled.
Pin 52, ASG – Analog Shield Ground
Analog ground (AHVSS) should be connected to this
pin to reduce cross-coupling between SCART inputs.
Pins 53, 54 SC2_IN_L/R – SCART2 Inputs (Fig. 4–16)
The analog input signal for SCART2 is fed to this pin.
Analog input connection must be AC-coupled.
Pin 55, ASG – Analog Shield Ground
Analog ground (AHVSS) should be connected to this
pin to reduce cross-coupling between SCART inputs.
55
MSP 34x2G
Pins 56, 57 SC1_IN_L/R – SCART1 Inputs (Fig. 4–16)
The analog input signal for SCART1 is fed to this pin.
Analog input connection must be AC-coupled.
Pin 58, VREFTOP – Reference Voltage IF A/D Converter (Fig. 4–13)
Via this pin, the reference voltage for the IF A/D converter is decoupled. It must be connected to AVSS
pins with a 10-µF and a 100-nF capacitor in parallel.
Traces must be kept short.
PRELIMINARY DATA SHEET
the digital circuitry is flowing through the ground connection point.
Pin 73, TP – This pin enables factory test modes. For
normal operation, it must be left vacant.
Pin 74, AUD_CL_OUT – Audio Clock Output
(Fig. 4–12)
This is the 18.432 MHz main clock output.
Pins 75, 76, NC – Pins not connected.
Pin 59, NC – Pin not connected.
Pin 60 MONO_IN – Mono Input (Fig. 4–16)
The analog mono input signal is fed to this pin. Analog
input connection must be AC-coupled.
Pins 61, 62, AVSS* – Ground for Analog Power Supply
Voltage
Ground connection for the analog IF input circuitry of
the MSP.
Pins 63, 64, NC – Pins not connected.
Pins 65, 66, AVSUP* – Analog Power Supply Voltage
Power is supplied via this pin for the analog IF input circuitry of the MSP. This pin must be connected to the
+5 V supply.
Pin 67, ANA_IN1+ – IF Input 1 (Fig. 4–13)
The analog sound IF signal is supplied to this pin.
Inputs must be AC-coupled. This pin is designed as
symmetrical input: ANA_IN1+ is internally connected
to one input of a symmetrical op amp, ANA_IN- to the
other.
Pin 68, ANA_IN− – IF Common (Fig. 4–13)
This pins serves as a common reference for ANA_IN1/
2+ inputs.
Pin 69, ANA_IN2+ – IF Input 2 (Fig. 4–13)
The analog sound if signal is supplied to this pin.
Inputs must be AC-coupled. This pin is designed as
symmetrical input: ANA_IN2+ is internally connected
to one input of a symmetrical op amp, ANA_IN− to the
other.
Pins 77, 78, D_CTR_I/O_1/0 – Digital Control Input/
Output Pins (Fig. 4–11)
These pins serve as general purpose input/output
pins. Pin D_CTR_I/O_1 can be used as an interrupt
request pin to the controller.
Pin 79, ADR_SEL – I2C Bus Address Select
(Fig. 4–10)
By means of this pin, one of three device addresses for
the MSP can be selected. The pin can be connected to
ground (I2C device addresses 80/81hex), to +5 V supply (84/85hex), or left open (88/89hex).
Pin 80, STANDBYQ – Stand-by
In normal operation, this pin must be High. If the
MSP 34x2G is switched off by first pulling STANDBYQ
low and then (after >1 µs delay) switching off the 5 V,
but keeping the 8-V power supply (‘Stand-by’-mode),
the SCART switches maintain their position and function.
* Application Note:
All ground pins should be connected to one low-resistive ground plane. All supply pins should be connected
separately with short and low-resistive lines to the
power supply. Decoupling capacitors from DVSUP to
DVSS, AVSUP to AVSS, and AHVSUP to AHVSS are
recommended as closely as possible to these pins.
Decoupling of DVSUP and DVSS is most important.
We recommend using more than one capacitor. By
choosing different values, the frequency range of
active decoupling can be extended. In our application
boards we use: 220 pF, 470 pF, 1.5 nF, and 10 µF. The
capacitor with the lowest value should be placed nearest to the DVSUP and DVSS pins.
Pin 70, TESTEN – Test Enable Pin (Fig. 4–9)
This pin enables factory test modes. For normal operation, it must be connected to ground.
Pins 71, 72 XTAL_IN, XTAL_OUT – Crystal Input and
Output Pins (Fig. 4–12)
These pins are connected to an 18.432 MHz crystal
oscillator which is digitally tuned by integrated shunt
capacitances. An external clock can be fed into
XTAL_IN. The audio clock output signal AUD_CL_OUT
is derived from the oscillator. External capacitors at
each crystal pin to ground (AVSS) are required. It
should be verified by layout, that no supply current for
56
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
4.4. Pin Configurations
SC2_IN_L
SC2_IN_R
ASG
SC3_IN_R
ASG
SC3_IN_L
SC1_IN_L
ASG
SC1_IN_R
SC4_IN_R
VREFTOP
SC4_IN_L
NC
NC
MONO_IN
AGNDC
AVSS
AHVSS
AVSS
AHVSS
NC
NC
NC
NC
AVSUP
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
65
40
CAPL_M
AVSUP
66
39
AHVSUP
ANA_IN1+
67
38
CAPL_A
ANA_IN−
68
37
SC1_OUT_L
ANA_IN2+
69
36
SC1_OUT_R
TESTEN
70
35
VREF1
XTAL_IN
71
34
SC2_OUT_L
XTAL_OUT
72
33
SC2_OUT_R
TP
73
32
ASG3
AUD_CL_OUT
74
31
DACM_S
NC
75
30
DACM_SUB
NC
76
29
DACM_C
D_CTR_I/O_1
77
28
DACM_L
D_CTR_I/O_0
78
27
DACM_R
ADR_SEL
79
26
VREF2
STANDBYQ
80
25
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
MSP 34x2G
1
2
3
4
5
6
7
8
9
DACA_L
DACA_R
NC
I2C_CL
NC
I2C_DA
NC
I2S_CL
RESETQ
I2S_WS
NC
I2S_DA_OUT
NC
I2S_DA_IN1
NC
ADR_DA
I2S_DA_IN2
ADR_WS
DVSS
ADR_CL
DVSS
DVSUP
DVSUP
DVSS
DVSUP
Fig. 4–4: 80-pin PQFP package
Micronas
57
MSP 34x2G
PRELIMINARY DATA SHEET
SC2_IN_L
ASG
SC2_IN_R
SC3_IN_R
ASG
SC3_IN_L
SC1_IN_L
ASG
SC1_IN_R
SC4_IN_R
VREFTOP
SC4_IN_L
MONO_IN
AGNDC
AVSS
AHVSS
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
AVSUP
49
32
CAPL_M
ANA_IN1+
50
31
AHVSUP
ANA_IN−
51
30
CAPL_A
ANA_IN2+
52
29
SC1_OUT_L
TESTEN
53
28
SC1_OUT_R
XTAL_IN
54
27
VREF1
XTAL_OUT
55
26
SC2_OUT_L
TP
56
25
SC2_OUT_R
AUD_CL_OUT
57
24
DACM_S
NC
58
23
DACM_SUB
NC
59
22
DACM_C
D_CTR_I/O1
60
21
DACM_L
D_CTR_I/O0
61
20
DACM_R
ADR_SEL
62
19
VREF2
STANDBYQ
63
18
DACA_L
NC
64
17
DACA_R
MSP 34x2G
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16
RESETQ
I2C_CL
I2C_DA
NC
I2S_CL
NC
I2S_WS
NC
I2S_DA_OUT
I2S_DA_IN2
I2S_DA_IN1
ADR_DA
ADR_WS
DVSS
DVSUP
ADR_CL
Fig. 4–5: 64-pin PLQFP package
58
Micronas
PRELIMINARY DATA SHEET
1
64
TP
NC
2
63
XTAL_OUT
NC
3
62
XTAL_IN
D_CTR_I/O_1
4
61
TESTEN
D_CTR_I/O_0
5
60
ANA_IN2+
ADR_SEL
6
59
ANA_IN−
STANDBYQ
7
58
ANA_IN+
NC
8
57
AVSUP
I2C_CL
9
56
AVSS
I2C_DA
10
55
MONO_IN
I2S_CL
11
54
VREFTOP
I2S_WS
12
53
SC1_IN_R
I2S_DA_OUT
13
52
SC1_IN_L
I2S_DA_IN1
14
51
ASG
ADR_DA
15
50
SC2_IN_R
ADR_WS
16
49
SC2_IN_L
ADR_CL
17
48
ASG
DVSUP
18
47
SC3_IN_R
DVSS
19
46
SC3_IN_L
I2S_DA_IN2
20
45
ASG
NC
21
44
SC4_IN_R
NC
22
43
SC4_IN_L
NC
23
42
AGNDC
RESETQ
24
41
AHVSS
DACA_R
25
40
CAPL_M
DACA_L
26
39
AHVSUP
VREF2
27
38
CAPL_A
DACM_R
28
37
SC1_OUT_L
DACM_L
29
36
SC1_OUT_R
DACM_C
30
35
VREF1
DACM_SUB
31
34
SC2_OUT_L
DACM_S
32
33
SC2_OUT_R
MSP 34x2G
AUD_CL_OUT
MSP 34x2G
Fig. 4–6: 64-pin PSDIP package
Micronas
59
MSP 34x2G
PRELIMINARY DATA SHEET
4.5. Pin Circuits
Pin numbers refer to the PQFP80 package.
DVSUP
DVSUP
P
P
N
N
GND
GND
Fig. 4–7: Output Pins 6, 8, 9, and 10
(I2S_DA_OUT, ADR_DA, ADR_WS, ADR_CL)
Fig. 4–11: Input/Output Pins 4, 5, 77, and 78
(I2S_CL, I2S_WS, D_CTR_I/O_1, D_CTR_I/O_0)
P
N
GND
Fig. 4–8: Input/Output Pins 2 and 3
(I2C_CL, I2C_DA)
3−30 pF
500 kΩ
N
2.5 V
3−30 pF
Fig. 4–12: Output/Input Pins 71, 72, and 74
(XTAL_IN, XTAL_OUT, AUD_CL_OUT)
Fig. 4–9: Input Pins 7, 17, 21, 70, and 80
(I2S_DA_IN1, I2S_DA_IN2, RESETQ, TESTEN,
STANDBYQ)
ANA_IN1+
ANA_IN2+
DVSUP
A
D
23 kΩ
ANA_IN−
VREFTOP
23 kΩ
GND
ADR_SEL
Fig. 4–10: Input Pin 79 (ADR_SEL)
60
Fig. 4–13: Input Pins 58, 67, 68, and 69
(VREFTOP, ANA_IN1+, ANA_IN-, ANA_IN2+)
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
AHVSUP
0...2 V
0...1.2 mA
Fig. 4–14: Capacitor Pins 38 and 40
(CAPL_A, CAPL_M)
3.3 kΩ
Fig. 4–17: Output Pins 24, 25, 27, 28, and 30
(DACA_R/L, DACM_R/L, DACM_SUB, DACM_C/S)
24 kΩ
≈ 3.75 V
Fig. 4–15: Input Pin 60 (MONO_IN)
125 kΩ
≈ 3.75 V
Fig. 4–18: Pin 45 (AGNDC)
40 kΩ
≈ 3.75 V
Fig. 4–16: Input Pins 47, 48, 50, 51, 53, 54, 56, and 57
(SC4-1_IN_L/R)
26 pF
120 kΩ
300 Ω
≈ 3.75 V
Fig. 4–19: Output Pins 33, 34, 36, and 37
(SC_2_OUT_R/L, SC_1_OUT_R/L)
Micronas
61
MSP 34x2G
PRELIMINARY DATA SHEET
4.6. Electrical Characteristics
4.6.1. Absolute Maximum Ratings
Symbol
Parameter
Pin Name
Min.
Max.
Unit
TA
Ambient Operating Temperature
−
0
701)
°C
TS
Storage Temperature
−
−40
125
°C
VSUP1
First Supply Voltage
AHVSUP
−0.3
9.0
V
VSUP2
Second Supply Voltage
DVSUP
−0.3
6.0
V
VSUP3
Third Supply Voltage
AVSUP
−0.3
6.0
V
dVSUP23
Voltage between AVSUP
and DVSUP
AVSUP,
DVSUP
−0.5
0.5
V
PTOT
Package Power Dissipation
PSDIP64
PQFP80
PLQFP64
AHVSUP,
DVSUP,
AVSUP
1300
1000
9601)
mW
mW
mW
−0.3
VSUP2+0.3
V
VIdig
Input Voltage, all Digital Inputs
IIdig
Input Current, all Digital Pins
−
−20
+20
mA2)
VIana
Input Voltage, all Analog Inputs
SCn_IN_s,3)
MONO_IN
−0.3
VSUP1+0.3
V
IIana
Input Current, all Analog Inputs
SCn_IN_s,3)
MONO_IN
−5
+5
mA2)
IOana
Output Current, all SCART Outputs
SCn_OUT_s3)
4), 5)
4), 5)
IOana
Output Current, all Analog Outputs
except SCART Outputs
DACM_r,3)
DACA_s
4)
4)
ICana
Output Current, other pins
connected to capacitors
CAPL_A,
CAPL_M,
AGNDC
4)
4)
1)
2)
3)
4)
5)
PLQFP64: 65 °C
positive value means current flowing into the circuit
“n” means “1”, “2”, “3”, or “4”; “r” means “L”, “R”, “C”, or “S”; “s” means “L” or “R”
The analog outputs are short-circuit proof with respect to First Supply Voltage and ground.
Total chip power dissipation must not exceed absolute maximum rating.
Stresses beyond those listed in the “Absolute Maximum Ratings” may cause permanent damage to the device. This
is a stress rating only. Functional operation of the device at these or any other conditions beyond those indicated in
the “Recommended Operating Conditions/Characteristics” of this specification is not implied. Exposure to absolute
maximum ratings conditions for extended periods may affect device reliability.
62
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
4.6.2. Recommended Operating Conditions (TA = 0 to 70 °C)
4.6.2.1. General Recommended Operating Conditions
Symbol
Parameter
Pin Name
Min.
Typ.
Max.
Unit
VSUP1
First Supply Voltage
(8-V Operation)
AHVSUP
7.6
8.0
8.7
V
4.75
5.0
5.25
V
First Supply Voltage
(5-V Operation)
VSUP2
Second Supply Voltage
DVSUP
4.75
5.0
5.25
V
VSUP3
Third Supply Voltage
AVSUP
4.75
5.0
5.25
V
tSTBYQ1
STANDBYQ Setup Time before
Turn-off of Second Supply Voltage
STANDBYQ,
DVSUP
1
µs
4.6.2.2. Analog Input and Output Recommendations
Symbol
Parameter
Pin Name
Min.
Typ.
CAGNDC
AGNDC-Filter-Capacitor
AGNDC
−20%
3.3
µF
−20%
100
nF
−20%
330
nF
Ceramic Capacitor in Parallel
SCn_IN_s1)
CinSC
DC-Decoupling Capacitor in front of
SCART Inputs
VinSC
SCART Input Level
VinMONO
Input Level, Mono Input
MONO_IN
RLSC
SCART Load Resistance
SCn_OUT_s1)
CLSC
SCART Load Capacitance
CVMA
Main/AUX Volume Capacitor
CAPL_M,
CAPL_A
CFMA
Main/AUX Filter Capacitor
DACM_r,1)
DACA_s
1)
Max.
2.0
VRMS
2.0
VRMS
10
kΩ
6.0
1
nF
µF
10
−10%
Unit
+10%
nF
“n” means “1”, “2”, “3”, or “4”; “r” means “L”, “R”, “C”, or “S”; “s” means “L” or “R”
Micronas
63
MSP 34x2G
PRELIMINARY DATA SHEET
4.6.2.3. Recommendations for Analog Sound IF Input Signal
Symbol
Parameter
Pin Name
Min.
Typ.
CVREFTOP
VREFTOP-Filter-Capacitor
VREFTOP
−20%
10
µF
−20%
100
nF
Ceramic Capacitor in Parallel
ANA_IN1+,
ANA_IN2+,
ANA_IN−
0
Max.
9
Unit
FIF_FMTV
Analog Input Frequency Range
for TV Applications
FIF_FMRADIO
Analog Input Frequency for
FM-Radio Applications
VIF_FM
Analog Input Range FM/NICAM
0.1
0.8
3
Vpp
VIF_AM
Analog Input Range AM/NICAM
0.1
0.45
0.8
Vpp
RFMNI
Ratio: NICAM Carrier/FM Carrier
(unmodulated carriers)
BG:
I:
−20
−23
−7
−10
0
0
dB
dB
−25
−11
0
dB
10.7
MHz
MHz
RAMNI
Ratio: NICAM Carrier/AM Carrier
(unmodulated carriers)
RFM
Ratio: FM-Main/FM-Sub Satellite
7
dB
RFM1/FM2
Ratio: FM1/FM2
German FM-System
7
dB
RFC
Ratio: Main FM Carrier/
Color Carrier
15
−
−
dB
RFV
Ratio: Main FM Carrier/
Luma Components
15
−
−
dB
PRIF
Passband Ripple
−
−
±2
dB
SUPHF
Suppression of Spectrum
above 9.0 MHz (not for FM Radio)
15
−
dB
FMMAX
Maximum FM-Deviation (approx.)
normal mode
HDEV2: high deviation mode
HDEV3: very high deviation mode
±180
±360
±540
kHz
kHz
kHz
64
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
4.6.2.4. Crystal Recommendations
Symbol
Parameter
Pin Name
Min.
Typ.
Max.
Unit
General Crystal Recommendations
fP
Crystal Parallel Resonance Frequency at 12 pF Load Capacitance
18.432
RR
Crystal Series Resistance
8
25
Ω
C0
Crystal Shunt (Parallel) Capacitance
6.2
7.0
pF
CL
External Load Capacitance1)
XTAL_IN,
XTAL_OUT
MHz
PSDIP approx. 1.5
P(L)QFP approx. 3.3
pF
pF
Crystal Recommendations for Master-Slave Applications (MSP-clock must perform synchronization to I2S clock)
fTOL
Accuracy of Adjustment
−20
+20
ppm
DTEM
Frequency Variation
versus Temperature
−20
+20
ppm
C1
Motional (Dynamic) Capacitance
19
fCL
Required Open Loop Clock
Frequency (Tamb = 25 °C)
AUD_CL_OUT
18.431
24
fF
18.433
MHz
Crystal Recommendations for FM / NICAM Applications (No MSP-clock synchronization to I2S clock possible)
fTOL
Accuracy of Adjustment
−30
+30
ppm
DTEM
Frequency Variation
versus Temperature
−30
+30
ppm
C1
Motional (Dynamic) Capacitance
15
fCL
Required Open Loop Clock
Frequency (Tamb = 25 °C)
AUD_CL_OUT
18.4305
fF
18.4335
MHz
Crystal Recommendations for all analog FM/AM Applications (No MSP-clock synchronization to I2S clock possible)
fTOL
Accuracy of Adjustment
−100
+100
ppm
DTEM
Frequency Variation
versus Temperature
−50
+50
ppm
fCL
Required Open Loop Clock
Frequency (Tamb = 25 °C)
18.429
18.435
MHz
AUD_CL_OUT
Amplitude Recommendation for Operation with External Clock Input (Cload after reset typ. 22 pF)
VXCA
External Clock Amplitude
XTAL_IN
0.7
Vpp
1)External
capacitors at each crystal pin to ground are required. They are necessary to tune the open-loop frequency of the internal PLL and to stabilize the frequency in closed-loop operation.
Due to different layouts, the accurate capacitor size should be determined with the customer PCB. The suggested values (1.5...3.3 pF) are figures based on experience and should serve as “start value”.
To define the capacitor size, reset the MSP without transmitting any further I2C telegrams. Measure the frequency at AUD_CL_OUT-pin. Change the capacitor size until the free running frequency matches 18.432 MHz
as closely as possible. The higher the capacity, the lower the resulting clock frequency.
Micronas
65
MSP 34x2G
PRELIMINARY DATA SHEET
4.6.3. Characteristics
at TA = 0 to 70 °C, fCLOCK = 18.432 MHz, VSUP1 = 7.6 to 8.7 V, VSUP2 = 4.75 to 5.25 V for min./max. values
at TA = 60 °C, fCLOCK = 18.432 MHz, VSUP1 = 8 V, VSUP2 = 5 V for typical values,
TJ = Junction Temperature
MAIN (M) = Loudspeaker Channel, AUX (A) = Headphone Channel
4.6.3.1. General Characteristics
Symbol
Parameter
Pin Name
First Supply Current (active)
(8-V Operation)
AHVSUP
Min.
Typ.
Max.
Unit
17.1
11.2
24.6
16.1
mA
mA
11.4
7.5
16.4
10.7
mA
mA
Test Conditions
Supply
ISUP1A
Analog Volume for Main and Aux at 0 dB
Analog Volume for Main and Aux at −30 dB
First Supply Current (active)
(5-V Operation)
Analog Volume for Main and Aux at 0 dB
Analog Volume for Main and Aux at −30 dB
ISUP2A
Second Supply Current (active)
DVSUP
75
100
mA
ISUP3A
Third Supply Current (active)
AVSUP
35
45
mA
ISUP1S
First Supply Current
(8-V Operation)
(standby mode) at Tj = 27 °C
AHVSUP
5.6
7.7
mA
STANDBYQ = low
3.7
5.1
mA
STANDBYQ = low
First Supply Current
(5-V Operation)
(standby mode) at Tj = 27 °C
Clock
fCLOCK
Clock Input Frequency
DCLOCK
Clock High to Low Ratio
tJITTER
Clock Jitter (Verification not
provided in Production Test)
VxtalDC
DC-Voltage Oscillator
tStartup
Oscillator Startup Time at
VDD Slew-rate of 1 V/1 µs
XTAL_IN,
XTAL_OUT
VACLKAC
Audio Clock Output AC Voltage
AUD_CL_OUT
VACLKDC
Audio Clock Output DC Voltage
routHF_ACL
HF Output Resistance
66
XTAL_IN
18.432
45
MHz
55
%
50
ps
2.5
0.4
1.2
V
2
1.8
0.4
0.6
140
ms
Vpp
load = 40 pF
VSUP3
Imax = 0.2 mA
Ω
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
4.6.3.2. Digital Inputs, Digital Outputs
Symbol
Parameter
Pin Name
Min.
Typ.
Max.
Unit
0.2
VSUP2
Test Conditions
Digital Input Levels
VDIGIL
Digital Input Low Voltage
STANDBYQ
D_CTR_I/O_0/1
VDIGIH
Digital Input High Voltage
ZDIGI
Input Impedance
IDLEAK
Digital Input Leakage Current
VDIGIL
Digital Input Low Voltage
VDIGIH
Digital Input High Voltage
0.8
IADRSEL
Input Current Address Select Pin
−500
0.5
VSUP2
−1
ADR_SEL
5
pF
1
µA
0.2
VSUP2
0 V < UINPUT< DVSUP
D_CTR_I/O_0/1: tri-state
VSUP2
−220
220
µA
UADR_SEL= DVSS
500
µA
UADR_SEL= DVSUP
0.4
V
IDDCTR = 1 mA
V
IDDCTR = −1 mA
Digital Output Levels
VDCTROL
Digital Output Low Voltage
VDCTROH
Digital Output High Voltage
Micronas
D_CTR_I/O_0
D_CTR_I/O_1
VSUP2
−0.3
67
MSP 34x2G
PRELIMINARY DATA SHEET
4.6.3.3. Reset Input and Power-Up
Symbol
Parameter
Pin Name
Min.
RESETQ
Typ.
Max.
Unit
0.45
0.55
VSUP2
0.7
0.8
VSUP2
5
pF
1
µA
Test Conditions
RESETQ Input Levels
VRHL
Reset High-Low Transition Voltage
VRLH
Reset Low-High Transition Voltage
ZRES
Input Impedance
IRES
Input Pin Leakage Current
-1
0 V < UINPUT< DVSUP
DVSUP
AVSUP
4.5V
t/ms
RESETQ
Low-to-High
Threshold
Note: The reset should
not reach high level
before the oscillator has
started. This requires a
reset delay of >2 ms
0.7×DVSUP
0.45...0.55×DVSUP
High-to-Low
Threshold
0.7 x DVSUP means
3.5 Volt with
DVSUP = 5.0 V
t/ms
Reset Delay
>2 ms
Internal
Reset
High
Low
t/ms
Fig. 4–20: Power-up sequence
68
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
4.6.3.4. I2C-Bus Characteristics
Symbol
Parameter
Pin Name
2
Min.
Typ.
I2C_CL,
I2C_DA
Max.
Unit
0.3
VSUP2
VI2CIL
I C-Bus Input Low Voltage
VI2CIH
I2C-Bus Input High Voltage
0.6
VSUP2
tI2C1
I2C Start Condition Setup Time
120
ns
tI2C2
I2C Stop Condition Setup Time
120
ns
tI2C5
I2C-Data Setup Time
before Rising Edge of Clock
55
ns
tI2C6
I2C-Data Hold Time
after Falling Edge of Clock
55
ns
tI2C3
I2C-Clock Low Pulse Time
500
ns
tI2C4
I2C-Clock High Pulse Time
500
ns
fI2C
I2C-BUS Frequency
VI2COL
I2C-Data Output Low Voltage
II2COH
I2C-Data Output
High Leakage Current
tI2COL1
I2C-Data Output Hold Time
after Falling Edge of Clock
15
ns
tI2COL2
I2C-Data Output Setup Time
before Rising Edge of Clock
100
ns
I2C_CL
I2C_CL,
I2C_DA
Test Conditions
1.0
MHz
0.4
V
II2COL = 3 mA
1.0
µA
VI2COH = 5 V
fI2C = 1 MHz
1/FI2C
TI2C4
I2C_CL
TI2C1
TI2C5
TI2C3
TI2C6
TI2C2
I2C_DA as input
TI2COL2
TI2COL1
I2C_DA as output
Fig. 4–21: I2C bus timing diagram
Micronas
69
MSP 34x2G
PRELIMINARY DATA SHEET
4.6.3.5. I2S-Bus Characteristics
Symbol
Parameter
Pin Name
VI2SIL
Input Low Voltage
VI2SIH
Input High Voltage
I2S_CL
I2S_WS
I2S_DA_IN1/2
ZI2SI
Input Impedance
ILEAKI2S
Input Leakage Current
VI2SOL
I2S
VI2SOH
I2S Output High Voltage
I2S_CL
I2S_WS
I2S_DA_OUT
fI2SOWS
I2S-Word Strobe Output Frequency
I2S_WS
32.0
kHz
fI2SOCL
I2S-Clock Output Frequency
I2S_CL
1.024
MHz
RI2S10/I2S20
Output Low Voltage
Typ.
I S-Clock Output High/Low-Ratio
Unit
0.2
VSUP2
5
pF
1
µA
0 V < UINPUT< DVSUP
0.4
V
II2SOL = 1 mA
V
II2SOH = −1 mA
1.0
1.1
ts_I2S
I S Input Setup Time
before Rising Edge of Clock
th_I2S
I2S Input Hold Time
after Rising Edge of Clock
td_I2S
I2S Output Delay Time
after Falling Edge of Clock
I2S_CL
I2S_WS
I2S_DA_OUT
fI2SWS
I2S-Word Strobe Input Frequency
I2S_WS
32.0
kHz
fI2SCL
I2S-Clock Input Frequency
I2S_CL
1.024
MHz
RI2SCL
70
2
I S-Clock Input Ratio
12
ns
40
ns
28
0.9
Test Conditions
VSUP2
VSUP2
− 0.3
0.9
I2S_CL
I2S_DA_IN1/2
Max.
0.5
−1
2
2
Min.
ns
for details see Fig. 4–22
“I2S bus timing diagram”
CL = 30 pF
1.1
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
1/FI2SWS
I2S_WS
MODUS[6] = 0
MODUS[6] = 1
Detail C
I2S_CL
Detail A
I2S_DA_IN
R LSB L MSB
L LSB R MSB
R LSB L LSB
16/32 bit left channel
16/32 bit right channel
Detail B
I2S_DA_OUT R LSB
L MSB
L LSB R MSB
R LSB L LSB
16/32 bit left channel
16/32 bit right channel
Data: MSB first, I2S master
1/FI2SWS
I2S_WS
MODUS[6] = 0
MODUS[6] = 1
Detail C
I2S_CL
Detail A
I2S_DA_IN
R LSB L MSB
L LSB R MSB
R LSB L LSB
16,18...32 bit left channel
Detail B
I2S_DA_OUT R LSB
16, 18...32 bit right channel
16, 18...32 bit left channel
L MSB
L LSB R MSB
R LSB L LSB
16, 18...32 bit right channel
Data: MSB first, I2S slave
Detail C
Detail A,B
1/FI2SCL
I2S_CL
I2S_CL
Ts_I2S
Th_I2S
Ts_I2S
I2S_DA_IN1/2
I2S_WS as INPUT
Td_I2S
Td_I2S
I2S_WS as OUTPUT
I2S_DA_OUT
Fig. 4–22: I2S bus timing diagram
Micronas
71
MSP 34x2G
PRELIMINARY DATA SHEET
4.6.3.6. Analog Baseband Inputs and Outputs, AGNDC
Symbol
Parameter
Pin Name
Min.
Typ.
Max.
Unit
Test Conditions
AGNDC
3.67
3.77
3.87
V
Rload ≥10 MΩ
AGNDC Open Circuit Voltage
(AHVSUP = 8 V)
2.41
2.51
2.61
V
AGNDC Output Resistance
(AHVSUP = 8 V)
70
125
180
kΩ
AGNDC Output Resistance
(AHVSUP = 8 V)
47
83
120
kΩ
Analog Ground
VAGNDC0
RoutAGN
AGNDC Open Circuit Voltage
(AHVSUP = 8 V)
3 V ≤ VAGNDC ≤ 4 V
Analog Input Resistance
RinSC
SCART Input Resistance
from TA = 0 to 70 °C
SCn_IN_s1)
25
40
58
kΩ
fsignal = 1 kHz, I = 0.05 mA
RinMONO
MONO Input Resistance
from TA = 0 to 70 °C
MONO_IN
15
24
35
kΩ
fsignal = 1 kHz, I = 0.1 mA
1)
72
“n” means “1”, “2”, “3”, or “4”; “s” means “L” or “R”
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
Symbol
Parameter
Pin Name
Min.
SCn_IN_s,1)
MONO_IN
Typ.
Max.
Unit
Test Conditions
2.00
2.25
VRMS
fsignal = 1 kHz
1.13
1.51
VRMS
460
500
Ω
Ω
−70
+70
mV
SCn_IN_s,1)
MONO_IN
→
SCn_OUT_s1)
−1.0
+0.5
dB
fsignal = 1 kHz
−0.5
+0.5
dB
with resp. to 1 kHz
SCn_OUT_s1)
1.8
1.9
2.0
VRMS
fsignal = 1 kHz
1.17
1.27
1.37
VRMS
2.1
2.1
3.3
4.6
5.0
kΩ
kΩ
1.80
2.04
61
0
2.28
V
mV
V
1.12
1.36
40
0
1.60
V
mV
V
Effective Signal Level at
Main/AUX-Output during full-scale
Digital Input Signal from I2S
for Analog Volume at 0 dB
(AHVSUP = 8 V)
1.23
1.37
1.51
VRMS
Effective Signal Level at
Main/AUX-Output during full-scale
Digital Input Signal from I2S
for Analog Volume at 0 dB
(AHVSUP = 5 V)
0.76
0.90
1.04
VRMS
Audio Analog-to-Digital-Converter
VAICL
Effective Analog Input Clipping
Level for Analog-to-DigitalConversion
(AHVSUP = 8 V)
Effective Analog Input Clipping
Level for Analog-to-DigitalConversion
(AHVSUP = 5 V)
SCART Outputs
RoutSC
SCART Output Resistance
at Tj = 27 °C
from TA = 0 to 70 °C
dVOUTSC
Deviation of DC-Level at SCART
Output from AGNDC Voltage
ASCtoSC
Gain from Analog Input
to SCART Output
frSCtoSC
Frequency Response from Analog
Input to SCART Output
Bandwidth: 0 to 20000 Hz
VoutSC
Effective Signal Level at
SCART-Output during full-scale
Digital Input Signal from I2S
(AHVSUP = 8 V)
SCn_OUT_s1)
200
200
Effective Signal Level at
SCART-Output during full-scale
Digital Input Signal from I2S
(AHVSUP = 5 V)
330
fsignal = 1 kHz, I = 0.1 mA
Main, AUX, and CS Outputs
RoutMACS
Main/AUX Output Resistance
at Tj = 27 °C
from TA = 0 to 70 °C
VoutDCMACS
DC-Level at Main/AUX-Output
for Analog Volume at 0 dB
for Analog Volume at −30 dB
DC-Level, not selected CS-Output
(AHVSUP = 8 V)
DC-Level at Main/AUX-Output
for Analog Volume at 0 dB
for Analog Volume at −30 dB
DC-Level, not selected CS-Output
(AHVSUP = 5 V)
VoutMACS
1)
DACM_r,1)
DACA_s
fsignal = 1 kHz, I = 0.1 mA
fsignal = 1 kHz
“n” means “1”, “2”, “3”, or “4”; “r” means “L”, “R”, “C”, or “S”; “s” means “L” or “R”
Micronas
73
MSP 34x2G
PRELIMINARY DATA SHEET
4.6.3.7. Sound IF Inputs
Symbol
Parameter
Pin Name
Min.
Typ.
Max.
Unit
Test Conditions
RIFIN
Input Impedance
ANA_IN1+,
ANA_IN2+,
ANA_IN−
1.5
6.8
2
9.1
2.5
11.4
kΩ
kΩ
Gain AGC = 20 dB
Gain AGC = 3 dB
DCVREFTOP
DC Voltage at VREFTOP
VREFTOP
2.45
2.65
2.75
V
DCANA_IN
DC Voltage on IF Inputs
ANA_IN1+,
ANA_IN2+,
ANA_IN−
1.3
1.5
1.7
V
XTALKIF
Crosstalk Attenuation
40
dB
BWIF
3 dB Bandwidth
ANA_IN1+,
ANA_IN2+,
ANA_IN−
10
MHz
AGC
AGC Step Width
0.85
fsignal = 1 MHz
Input Level = −2 dBr
dB
4.6.3.8. Power Supply Rejection
Symbol
Parameter
Pin Name
Min.
Typ.
Max.
Unit
Test Conditions
PSRR: Rejection of Noise on AHVSUP at 1 kHz
PSRR
AGNDC
AGNDC
80
dB
From Analog Input to I S Output
MONO_IN,
SCn_IN_s1)
70
dB
From Analog Input to
SCART Output
MONO_IN,
SCn_IN_s1)
SCn_OUT_s1)
70
dB
From I2S Input to SCART Output
SCn_OUT_s1)
60
dB
80
dB
2
2
From I S Input to
Main or AUX Output
1)
74
1)
DACM_r,
DACA_s
“n” means “1”, “2”, “3”, or “4”; “r” means “L”, “R”, “C”, or “S”; “s” means “L” or “R”
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
4.6.3.9. Analog Performance
Symbol
Parameter
Pin Name
Min.
Typ.
from Analog Input to I2S Output
MONO_IN,
SCn_IN_s1)
85
from Analog Input to
SCART Output
MONO_IN,
SCn_IN_s1)
→
SCn_OUT_s1)
from I2S Input to SCART Output
SCn_OUT_s1)
from I2S Input to Main/AUX-Output
for Analog Volume at 0 dB
for Analog Volume at −30 dB
DACM_r,1)
DACA_s
Max.
Unit
Test Conditions
88
dB
Input Level = −20 dB with
resp. to VAICL, fsig = 1 kHz,
unweighted
20 Hz...16 kHz
93
96
dB
Input Level = −20 dB,
fsig = 1 kHz,
unweighted
20 Hz...20 kHz
85
88
dB
Input Level = −20 dB,
fsig = 1 kHz,
unweighted
20 Hz...15 kHz
85
78
88
83
dB
dB
Specifications for AHVSUP = 8 V
SNR
THD
1)
Signal-to-Noise Ratio
Input Level = −20 dB,
fsig = 1 kHz,
unweighted
20 Hz...15 kHz
Total Harmonic Distortion
from Analog Input to I2S Output
MONO_IN,
SCn_IN_s1)
0.01
0.03
%
Input Level = −3 dBr with
resp. to VAICL, fsig = 1 kHz,
unweighted
20 Hz...16 kHz
from Analog Input to
SCART Output
MONO_IN,
SCn_IN_s
→
SCn_OUT_s1)
0.01
0.03
%
Input Level = −3 dBr,
fsig = 1 kHz,
unweighted
20 Hz...20 kHz
from I2S Input to SCART Output
SCn_OUT_s1)
0.01
0.03
%
Input Level = −3 dBr,
fsig = 1 kHz,
unweighted
20 Hz...16 kHz
from I2S Input to
Main or AUX Output
DACM_r,1)
DACA_s
0.01
0.03
%
Input Level = −3 dBr,
fsig = 1 kHz,
unweighted
20 Hz...16 kHz
“n” means “1”, “2”, “3”, or “4”; “r” means “L”, “R”, “C”, or “S”; “s” means “L” or “R”
Micronas
75
MSP 34x2G
Symbol
Parameter
PRELIMINARY DATA SHEET
Pin Name
Min.
Typ.
from Analog Input to I2S Output
MONO_IN,
SCn_IN_s1)
82
from Analog Input to
SCART Output
MONO_IN,
SCn_IN_s1)
→
SCn_OUT_s1)
from I2S Input to SCART Output
SCn_OUT_s1)
from I2S Input to Main/AUX-Output
for Analog Volume at 0 dB
for Analog Volume at −30 dB
DACM_r,1)
DACA_s
Max.
Unit
Test Conditions
85
dB
Input Level = −20 dB with
resp. to VAICL, fsig = 1 kHz,
unweighted
20 Hz...16 kHz
90
93
dB
Input Level = −20 dB,
fsig = 1 kHz,
unweighted
20 Hz...20 kHz
82
85
dB
Input Level = −20 dB,
fsig = 1 kHz,
unweighted
20 Hz...15 kHz
82
75
85
80
dB
dB
Specifications for AHVSUP = 5 V
SNR
THD
1)
76
Signal-to-Noise Ratio
Input Level = −20 dB,
fsig = 1 kHz,
unweighted
20 Hz...15 kHz
Total Harmonic Distortion
0.1
%
Input Level = −3 dBr with
resp. to VAICL, fsig = 1 kHz,
unweighted
20 Hz...16 kHz
MONO_IN,
SCn_IN_s
→
SCn_OUT_s1)
0.1
%
Input Level = −3 dBr,
fsig = 1 kHz,
unweighted
20 Hz...20 kHz
from I2S Input to SCART Output
SCn_OUT_s1)
0.1
%
Input Level = −3 dBr,
fsig = 1 kHz,
unweighted
20 Hz...16 kHz
from I2S Input to
Main or AUX Output
DACA_s,
DACM_s1)
0.1
%
Input Level = −3 dBr,
fsig = 1 kHz,
unweighted
20 Hz...16 kHz
from Analog Input to I2S Output
MONO_IN,
SCn_IN_s1)
from Analog Input to
SCART Output
0.03
“n” means “1”, “2”, “3”, or “4”; “r” means “L”, “R”, “C”, or “S”; “s” means “L” or “R”
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
Symbol
Parameter
Pin Name
Min.
Typ.
Max.
Unit
Test Conditions
CROSSTALK Specifications
XTALK
Crosstalk Attenuation
Input Level = −3 dB,
fsig = 1 kHz, unused analog
inputs connected to ground
by Z < 1 kΩ
between left and right channel within
SCART Input/Output pair (L→R, R→L)
unweighted
20 Hz...20 kHz
SCn_IN → SCn_OUT1)
80
dB
SC1_IN or SC2_IN → I2S Output
80
dB
SC3_IN → I2S Output
80
dB
I2S Input → SCn_OUT1)
80
dB
unweighted
20 Hz...16 kHz
between left and right channel within
Main or AUX Output pair
I2S Input → DACM
I2S Input → DACA
75
dB
between SCART Input/Output pairs
D = disturbing program
O = observed program
D: MONO/SCn_IN → SCn_OUT
O: MONO/SCn_IN → SCn_OUT1)
100
dB
D: MONO/SCn_IN → SCn_OUT or unsel.
O: MONO/SCn_IN → I2S Output
95
dB
D: MONO/SCn_IN → SCn_OUT
O: I2S Input → SCn_OUT1)
100
dB
D: MONO/SCn_IN → unselected
O: I2S Input → SC1_OUT1)
100
dB
Crosstalk between Main and AUX Output pairs
I2S Input → DACM
I2S Input → DACA
XTALK
90
dB
unweighted
20 Hz...16 kHz
same signal source on left
and right disturbing
channel, effect on each
observed output channel
unweighted
20 Hz...20 kHz
same signal source on left
and right disturbing
channel, effect on each
observed output channel
Crosstalk from Main or AUX Output to SCART Output
and vice versa
D = disturbing program
O = observed program
1)
unweighted
20 Hz...20 kHz
same signal source on left
and right disturbing
channel, effect on each
observed output channel
D: MONO/SCn_IN/DSP → SCn_OUT
O: I2S Input → DACM
O: I2S Input → DACA
80
dB
D: MONO/SCn_IN/DSP → SCn_OUT
O: I2S Input → DACM
O: I2S Input → DACA
85
dB
D: I2S Input → DACM
D: I2S Input → DACA
O: MONO/SCn_IN → SCn_OUT1)
95
dB
D: I2S Input → DACM
D: I2S Input → DACA
O: I2S Input → SCn_OUT1)
95
dB
SCART output load
resistance 10 kΩ
SCART output load
resistance 30 kΩ
“n” means “1”, “2”, “3”, or “4”
Micronas
77
MSP 34x2G
PRELIMINARY DATA SHEET
4.6.3.10. Sound Standard Dependent Characteristics
Symbol
Parameter
Pin Name
Min.
DACM_r,1)
DACA_s,
SCn_OUT_s
−1.5
Typ.
Max.
Unit
Test Conditions
+1.5
dB
2.12 kHz, Modulator input
level = 0 dBref
dB
NICAM: −6 dB, 1 kHz, RMS
unweighted
0 to 15 kHz, Vol = 9 dB
NIC_Presc = 7Fhex
Output level 1 VRMS at
DACp_s
NICAM Characteristics (MSP Standard Code = 8)
dVNICAMOUT
Tolerance of Output Voltage
of NICAM Baseband Signal
S/NNICAM
S/N of NICAM Baseband Signal
THDNICAM
Total Harmonic Distortion + Noise
of NICAM Baseband Signal
0.1
%
2.12 kHz, Modulator input
level = 0 dBref
BERNICAM
NICAM: Bit Error Rate
1
10−7
FM+NICAM, norm conditions
fRNICAM
NICAM Frequency Response ,
20...15000 Hz
−1.0
+1.0
dB
Modulator input
level = −12 dB dBref; RMS
XTALKNICAM
NICAM Crosstalk Attenuation (Dual)
80
dB
SEPNICAM
NICAM Channel Separation (Stereo)
80
dB
72
FM Characteristics (MSP Standard Code = 3)
DACM_r,1)
DACA_s,
SCn_OUT_s1)
−1.5
dVFMOUT
Tolerance of Output Voltage
of FM Demodulated Signal
S/NFM
S/N of FM Demodulated Signal
THDFM
Total Harmonic Distortion + Noise
of FM Demodulated Signal
fRFM
FM Frequency Response
20...15000 Hz
−1.0
XTALKFM
FM Crosstalk Attenuation (Dual)
SEPFM
FM Channel Separation (Stereo)
+1.5
73
dB
1 FM-carrier, 50 µs, 1 kHz,
40 kHz deviation; RMS
dB
1 FM-carrier 5.5 MHz, 50 µs,
1 kHz, 40 kHz deviation;
RMS, unweighted
0 to 15 kHz (for S/N);
full input range, FM-Prescale = 46hex, Vol = 0 dB
→ Output Level 1 VRMS at
DACp_s
0.1
%
+1.0
dB
1 FM-carrier 5.5 MHz,
50 µs, Modulator input
level = −14.6 dBref; RMS
80
dB
2 FM-carriers 5.5/5.74 MHz,
50 µs, 1 kHz, 40 kHz deviation; Bandpass 1 kHz
DACM_r,1)
DACA_s,
SCn_OUT_s
50
dB
2 FM-carriers 5.5/5.74 MHz,
50 µs, 1 kHz, 40 kHz deviation; RMS
DACM_r,1)
DACA_s,
SCn_OUT_s
55
dB
45
dB
SIF level: 0.1−0.8 Vpp
AM-carrier 54% at 6.5 MHz
Vol = 0 dB, FM/AM
prescaler set for
output = 0.5 VRMS at
Loudspeaker out;
Standard Code = 09hex
no video/chroma
components
AM Characteristics (MSP Standard Code = 9)
S/NAM(1)
S/N of AM Demodulated Signal
measurement condition: RMS/Flat
S/NAM(2)
S/N of AM Demodulated Signal
measurement condition: QP/CCIR
THDAM
Total Harmonic Distortion + Noise
of AM Demodulated Signal
fRRM
RM Frequency Response
50...12000 Hz
−2.5
0.6
%
+1.0
dB
1) “n” means “1”, “2”, “3”, or “4”; “r” means “L”, “R”, “C”, or “S”; “s” means “L” or “R”
78
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
Symbol
Parameter
Pin Name
Min.
Typ.
Max.
Unit
Test Conditions
68
dB
57
dB
1 kHz L or R or SAP, 100%
modulation, 75 µs deemphasis, RMS unweighted 0 to 15
kHz
BTSC Characteristics (MSP Standard Code = 20hex, 21hex)
S/NBTSC
S/N of BTSC Stereo Signal
S/N of BTSC-SAP Signal
THDBTSC
DACM_r,1)
DACA_s,
SCn_OUT_s
THD+N of BTSC Stereo Signal
0.1
%
THD+N of BTSC SAP Signal
0.5
%
Frequency Response of BTSC Stereo, 50 Hz...12 kHz
−1.0
1.0
dB
Frequency Response of BTSCSAP, 50 Hz...9 kHz
−1.0
1.0
dB
Stereo → SAP
76
dB
SAP → Stereo
80
dB
SEPBTSC
Stereo Separation
50 Hz...10 kHz
50 Hz...12 kHz
35
30
dB
dB
FMpil
Pilot deviation threshold
fRBTSC
XTALKBTSC
Stereo off → on
ANA_IN1+,
ANA_IN2+
Stereo on → off
fPilot
Pilot Frequency Range
ANA_IN1+
ANA_IN2+
3.2
3.5
kHz
1.2
1.5
kHz
15.563
15.843
kHz
1 kHz L or R or SAP, 100%
75 µs EIM2), DBX NR, RMS
unweighted
0 to 15 kHz
L or R or SAP,
1%...66% EIM2), DBX NR
1 kHz L or R or SAP, 100%
modulation, 75 µs deemphasis, Bandpass 1 kHz
L or R 1%...66% EIM2), DBX
NR
4.5 MHz carrier modulated
with fh = 15.743 kHz
SIF level = 100 mVpp
indication: STATUS Bit[6]
standard BTSC stereo signal,
sound carrier only
BTSC Characteristics (MSP Standard Code = 20hex, 21hex)
with a minimum IF input signal level of 70 mVpp (measured without any video/chroma signal components)
S/NBTSC
S/N of BTSC Stereo Signal
S/N of BTSC-SAP Signal
THDBTSC
fRBTSC
XTALKBTSC
SEPBTSC
1)
2)
DACM_r,1)
DACA_s,
SCn_OUT_s
64
dB
55
dB
THD+N of BTSC Stereo Signal
0.15
%
THD+N of BTSC SAP Signal
0.8
%
Frequency Response of BTSC Stereo, 50 Hz...12 kHz
−1.0
1.0
dB
Frequency Response of BTSCSAP, 50 Hz...9 kHz
−1.0
1.0
dB
Stereo → SAP
75
dB
SAP → Stereo
75
dB
Stereo Separation
50 Hz...10 kHz
50 Hz...12 kHz
35
30
dB
dB
1 kHz L or R or SAP, 100%
modulation, 75 µs deemphasis, RMS unweighted 0 to 15
kHz
1 kHz L or R or SAP, 100%
75 µs EIM2), DBX NR, RMS
unweighted
0 to 15 kHz
L or R or SAP,
1%...66% EIM2), DBX NR
1 kHz L or R or SAP, 100%
modulation, 75 µs deemphasis, Bandpass 1 kHz
L or R 1%...66% EIM2), DBX
NR
“n” means “1”, “2”, “3”, or “4”; “r” means “L”, “R”, “C”, or “S”; “s” means “L” or “R”
EIM refers to 75-µs Equivalent Input Modulation. It is defined as the audio-signal level which results in a stated percentage modulation,
when the DBX encoding process is replaced by a 75-µs preemphasis network.
Micronas
79
MSP 34x2G
Symbol
Parameter
PRELIMINARY DATA SHEET
Pin Name
Min.
Typ.
Max.
Unit
Test Conditions
60
dB
60
dB
1 kHz L or R,
100% modulation,
75 µs deemphasis,
RMS unweighted
0 to 15 kHz
EIA-J Characteristics (MSP Standard Code = 30hex)
S/NEIAJ
S/N of EIA-J Stereo Signal
S/N of EIA-J Sub-Channel
THDEIAJ
fREIAJ
XTALKEIAJ
SEPEIAJ
DACM_r,1)
DACA_s,
SCn_OUT_s
THD+N of EIA-J Stereo Signal
0.2
%
THD+N of EIA-J Sub-Channel
0.3
%
Frequency Response of EIA-J
Stereo, 50 Hz...12 kHz
−1.0
1.0
dB
Frequency Response of EIA-J
Sub-Channel, 50 Hz...12 kHz
−1.0
1.0
dB
Main → SUB
66
dB
Sub → MAIN
80
dB
Stereo Separation
50 Hz...5 kHz
50 Hz...10 kHz
35
28
dB
dB
68
dB
100% modulation,
75 µs deemphasis
1 kHz L or R, 100% modulation, 75 µs deemphasis,
Bandpass 1 kHz
EIA-J Stereo Signal, L or R
100% modulation
FM-Radio Characteristics (MSP Standard Code = 40hex)
DACM_r,1)
DACA_s,
SCn_OUT_s
S/NUKW
S/N of FM-Radio Stereo Signal
THDUKW
THD+N of FM-Radio Stereo Signal
fRUKW
Frequency Response of
FM-Radio Stereo
50 Hz...15 kHz
−1.0
SEPUKW
Stereo Separation 50 Hz...15 kHz
45
fPilot
Pilot Frequency Range
1)
80
ANA_IN1+
ANA_IN2+
0.1
18.844
%
1 kHz L or R, 100% modulation, 75 µs deemphasis, RMS
unweighted
0 to 15 kHz
L or R, 1%...100% modulation, 75 µs deemphasis
1.0
dB
dB
19.125
kHz
standard FM radio
stereo signal
“n” means “1”, “2”, “3”, or “4”; “r” means “L”, “R”, “C”, or “S”; “s” means “L” or “R”
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
5. Appendix A: Overview of TV-Sound Standards
5.1. NICAM 728
Table 5–1: Summary of NICAM 728 sound modulation parameters
Specification
I
B/G
L
D/K
Carrier frequency of
digital sound
6.552 MHz
5.85 MHz
5.85 MHz
5.85 MHz
Transmission rate
728 kbit/s
Type of modulation
Differentially encoded quadrature phase shift keying (DQPSK)
Spectrum shaping
Roll-off factor
by means of Roll-off filters
Carrier frequency of
analog sound component
1.0
0.4
6.0 MHz
FM mono
5.5 MHz
FM mono
0.4
0.4
6.5 MHz AM mono
terrestrial
cable
6.5 MHz
FM mono
Power ratio between
vision carrier and
analog sound carrier
10 dB
13 dB
10 dB
16 dB
13 dB
Power ratio between
analog and modulated
digital sound carrier
10 dB
7 dB
17 dB
11 dB
China/
Hungary
Poland
12 dB
7 dB
Table 5–2: Summary of NICAM 728 sound coding characteristics
Characteristics
Values
Audio sampling frequency
32 kHz
Number of channels
2
Initial resolution
14 bit/sample
Companding characteristics
near instantaneous, with compression to 10 bits/sample in 32-samples (1 ms) blocks
Coding for compressed samples
2’s complement
Preemphasis
CCITT Recommendation J.17 (6.5 dB attenuation at 800 Hz)
Audio overload level
+12 dBm measured at the unity gain frequency of the preemphasis network (2 kHz)
Micronas
81
MSP 34x2G
PRELIMINARY DATA SHEET
5.2. A2-Systems
Table 5–3: Key parameters for A2 Systems of Standards B/G, D/K, and M
Characteristics
Sound Carrier FM1
Sound Carrier FM2
TV-Sound Standard
B/G
D/K
M
B/G
D/K
M
Carrier frequency in MHz
5.5
6.5
4.5
5.7421875
6.2578125
6.7421875
5.7421875
4.724212
Vision/sound power difference
13 dB
20 dB
Sound bandwidth
Preemphasis
Frequency deviation (nom/max)
40 Hz to 15 kHz
50 µs
75 µs
±27/±50 kHz
±17/±25 kHz
50 µs
75 µs
±27/±50 kHz
±15/±25 kHz
Transmission Modes
Mono transmission
Stereo transmission
Dual sound transmission
mono
(L+R)/2
language A
mono
(L+R)/2
R
(L−R)/2
language B
Identification of Transmission Mode
Pilot carrier frequency
54.6875 kHz
Max. deviation portion
±2.5 kHz
Type of modulation / modulation depth
AM / 50%
Modulation frequency
82
mono: unmodulated
stereo: 117.5 Hz
dual: 274.1 Hz
55.0699 kHz
149.9 Hz
276.0 Hz
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
5.3. BTSC-Sound System
Table 5–4: Key parameters for BTSC-Sound Systems
Aural
Carrier
Carrier frequency
(fhNTSC = 15.734 kHz)
(fhPAL = 15.625 kHz)
4.5 MHz
BTSC-MPX-Components
(L+R)
Pilot
(L−R)
SAP
Prof. Ch.
Baseband
fh
2 fh
5 fh
6.5 fh
Sound bandwidth in kHz
0.05 - 15
0.05 - 15
0.05 - 12
0.05 - 3.4
Preemphasis
75 µs
DBX
DBX
150 µs
50 kHz1)
15 kHz
3 kHz
AM
10 kHz
FM
3 kHz
FM
Max. deviation to Aural Carrier
73 kHz
(total)
25 kHz1)
5 kHz
Max. Freq. Deviation of Subcarrier
Modulation Type
1)
Sum does not exceed 50 kHz due to interleaving effects
5.4. Japanese FM Stereo System (EIA-J)
Table 5–5: Key parameters for Japanese FM-Stereo Sound System EIA-J
Aural
Carrier
FM
(L+R)
(L−R)
Identification
4.5 MHz
Baseband
2 fh
3.5 fh
Sound bandwidth
0.05 - 15 kHz
0.05 - 15 kHz
−
Preemphasis
75 µs
75 µs
none
25 kHz
20 kHz
2 kHz
10 kHz
FM
60%
AM
Carrier frequency (fh = 15.734 kHz)
Max. deviation portion to Aural Carrier
47 kHz
EIA-J-MPX-Components
Max. Freq. Deviation of Subcarrier
Modulation Type
Transmitter-sided delay
20 µs
0 µs
0 µs
Mono transmission
L+R
−
unmodulated
Stereo transmission
L+R
L−R
982.5 Hz
Bilingual transmission
Language A
Language B
922.5 Hz
Micronas
83
MSP 34x2G
PRELIMINARY DATA SHEET
5.5. FM Satellite Sound
Table 5–6: Key parameters for FM Satellite Sound
Carrier Frequency
Maximum
FM Deviation
Sound Mode
Bandwidth
Deemphasis
6.5 MHz
85 kHz
Mono
15 kHz
50 µs
7.02/7.20 MHz
50 kHz
Mono/Stereo/Bilingual
15 kHz
adaptive
7.38/7.56 MHz
50 kHz
Mono/Stereo/Bilingual
15 kHz
adaptive
7.74/7.92 MHz
50 kHz
Mono/Stereo/Bilingual
15 kHz
adaptive
5.6. FM-Stereo Radio
Table 5–7: Key parameters for FM-Stereo Radio Systems
Aural
Carrier
Carrier frequency (fp = 19 kHz)
10.7 MHz
FM-Radio-MPX-Components
(L+R)
Pilot
(L−R)
RDS/ARI
Baseband
fp
2 fp
3 fh
Sound bandwidth in kHz
0.05 - 15
0.05 - 15
Preemphasis:
− USA
− Europe
75 µs
50 µs
75 µs
50 µs
Max. deviation to Aural Carrier
1)
84
75 kHz
(100%)
90%1)
10%
90%1)
5%
Sum does not exceed 90% due to interleaving effects.
Micronas
PRELIMINARY DATA SHEET
MSP 34x2G
6. Appendix B: Manual/Compatibility Mode
To adapt the modes of the STANDARD SELECT register to individual requirements and for reasons of compatibility to the MSP 34x0D, the MSP 34x2G offers
an Manual/Compatibility Mode, which provides sophisticated programming of the MSP 34x2G.
Using the STANDARD SELECT register generally provides a more economic way to program the
MSP 34x2G and will result in optimal behavior. Therefore, it is not recommended to use the Manual/
Compatibility mode. In those cases, where the
MSP 34x0D is to be substituted by the MSP 34x2G,
the tips given in section 6.9. have to be obeyed by the
controller software.
Micronas
85
MSP 34x2G
PRELIMINARY DATA SHEET
6.1. Demodulator Write and Read Registers for Manual/Compatibility Mode
Table 6–1: Demodulator Write Registers; Subaddress: 10hex; these registers are not readable!
Demodulator
Write Registers
Address
(hex)
MSPVersion
Description
Reset
Mode
Page
AUTO_FM/AM
00 21
3411,
34511)
1. MODUS[0]=1 (Automatic Sound Select): Switching Level threshold of
Automatic Switching between NICAM and FM/AM in case of bad NICAM
reception
00 00
87
2. MODUS[0]=0 (Manual Mode): Activation and configuration of Automatic
Switching between NICAM and FM/AM in case of bad NICAM reception
A2_Threshold
00 22
all
A2 Stereo Identification Threshold
00 19hex
89
CM_Threshold
00 24
all
Carrier-Mute Threshold
00 2Ahex
89
AD_CV
00 BB
all
SIF-input selection, configuration of AGC, and Carrier-Mute Function
00 00
90
MODE_REG
00 83
3411,
34511)
Controlling of MSP-Demodulator and Interface options. As soon as this
register is applied, the MSP 34x2G works in the MSP 34x0D Compatibility
Mode.
00 00
91
Warning: In this mode, BTSC, EIA-J, and FM-Radio are disabled. Only
MSP 34x0D features are available; the use of MODUS and STATUS register
is not allowed.
The MSP 34x2G is reset to the normal mode by first programming the
MODUS register followed by transmitting a valid standard code to the
STANDARD SELECTION register.
FIR1
FIR2
00 01
00 05
FIR1-filter coefficients channel 1 (6 ⋅ 8 bit)
FIR2-filter coefficients channel 2 (6 ⋅ 8 bit), + 3 ⋅ 8 bit offset (total 72 bit)
00 00
93
DCO1_LO
DCO1_HI
00 93
00 9B
Increment channel 1 Low Part
Increment channel 1 High Part
00 00
93
DCO2_LO
DCO2_HI
00 A3
00 AB
Increment channel 2 Low Part
Increment channel 2 High Part
PLL_CAPS
00 1F
Not of interest for the customer
Switchable PLL capacitors to tune open-loop frequency
00 56
96
1)
not in BTSC, EIA-J, and FM-Radio mode
Note: All registers except AUTO_FM/AM, A2_Threshold and CM-Threshold are initialised during STANDARD SELECTION and are
automatically updated when Automatic Sound Select (MODUS[0]=1) is on.
Table 6–2: Demodulator Read Registers; Subaddress: 11hex; these registers are not writable!
Demodulator
Read Registers
Address
(hex)
MSPVersion
Description
Page
C_AD_BITS
00 23
3411,
3451
NICAM-Sync bit, NICAM-C-Bits, and three LSBs of additional data bits
95
ADD_BITS
00 38
NICAM: bit [10:3] of additional data bits
95
CIB_BITS
00 3E
NICAM: CIB1 and CIB2 control bits
95
ERROR_RATE
00 57
NICAM error rate, updated with 182 ms
96
PLL_CAPS
02 1F
Not for customer use
96
AGC_GAIN
02 1E
Not for customer use
96
86
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
6.2. DSP Write and Read Registers for Manual/Compatibility Mode
Table 6–3: DSP-Write Registers; Subaddress: 12hex, all registers are readable as well
Write Register
Address
(hex)
Bits
Operational Modes and Adjustable Range
Reset
Mode
Page
Volume SCART1 channel: Ctrl. mode
00 07
[7..0]
[Linear mode / logarithmic mode]
00hex
97
FM Fixed Deemphasis
00 0F
[15..8]
[50 µs, 75 µs, OFF]
50 µs
97
[7..0]
[OFF, WP1]
OFF
97
FM Adaptive Deemphasis
Identification Mode
00 15
[7..0]
[B/G, M]
B/G
98
FM DC Notch
00 17
[7..0]
[ON, OFF]
ON
98
Volume SCART2 channel: Ctrl. mode
00 40
[7..0]
[Linear mode / logarithmic mode]
00hex
97
Table 6–4: DSP Read Registers; Subaddress: 13hex, all registers are not writable
Additional Read Registers
Address
(hex)
Bits
Output Range
Stereo detection register for
A2 Stereo Systems
00 18
[15..8]
[80hex ... 7Fhex]
8 bit two’s complement
98
DC level readout FM1/Ch2-L
00 1B
[15..0]
[8000hex ... 7FFFhex]
16 bit two’s complement
98
DC level readout FM2/Ch1-R
00 1C
[15..0]
[8000hex ... 7FFFhex]
16 bit two’s complement
98
6.3. Manual/Compatibility Mode:
Description of Demodulator Write Registers
Selected Sound
6.3.1. Automatic Switching between NICAM and
Analog Sound
NICAM
In case of bad NICAM reception or loss of the
NICAM-carrier, the MSP 34x2G offers an Automatic
Switching (fall back) to the analog sound (FM/AMMono), without the necessity of the controller reading
and evaluating any parameters. If a proper NICAM signal returns, switching back to this source is performed
automatically as well. The feature evaluates the NICAM
ERROR_RATE and switches, if necessary, all output
channels which are assigned to the NICAM source, to
the analog source, and vice versa.
An appropriate hysteresis algorithm avoids oscillating
effects (see Fig. 6–1). STATUS[9] and C_AD_BITS[11]
(Addr: 0023 hex) provide information about the actual
NICAM-FM/AM-status.
analog
Sound
Page
ERROR_RATE
threshold/2
threshold
Fig. 6–1: Hysteresis for Automatic Switching
6.3.1.1. Function in Automatic Sound Select Mode
The Automatic Sound Select feature (MODUS[0]=1)
includes the procedure mentioned above. By default, the
internal ERROR_RATE threshold is set to 700dec. i.e. :
– NICAM → analog Sound if ERROR_RATE > 700
– analog Sound → NICAM if ERROR_RATE < 700/2
The ERROR_RATE value of 700 corresponds to a
BER of approximately 5.46*10-3/s.
Micronas
87
MSP 34x2G
PRELIMINARY DATA SHEET
Individual configuration of the threshold can be done
using Table 6–5, whereby the bits 0 and 11 of
AUTO_FM are ignored. It is recommended to use the
internal setting used by the standard selection.
The optimum NICAM sound can be assigned to the
MSP output channels by selecting one of the “Stereo or
A/B”, “Stereo or A”, or “Stereo or B” source channels.
6.3.1.2. Function in Manual Mode
If the manual mode (MODUS[0]=0) is required, the
activation and configuration of the Automatic Switching
feature has to be done as described in Table 6–5.
Note, that the channel matrix of the corresponding output channels must be set according to the
NICAM mode and need not to be changed in the FM/
AM-fallback case.
Example:
Required threshold = 500: bits [10:1]=00 1111 1010
Table 6–5: Coding of Automatic NICAM/Analog Sound Switching;
Reset Status: Mode 0;
Automatic Sound Select is on (MODUS[0] = 1)
Mode
Description
AUTO_FM [11:0]
Addr. = 00 21hex
ERROR_RATEThreshold/dec
Source Select:
Input at NICAM Path1)
1
Automatic Switching with
internal threshold
(Default, if Automatic Sound
Select is on)
bit[11]
= ignored
bit[10:1] = 0
bit[0]
= ignored
700
NICAM or FM/AM,
depending on
ERROR_RATE
2
Automatic Switching with
external threshold
(Customizing of Automatic
Sound Select)
bit[11]
= ignored
bit[10:1] = 25...1000
= threshold/2
bit[0]
= ignored
set by customer;
recommended
range: 50...2000
1)
The NICAM path may be assigned to “Stereo or A/B”, “Stereo or A”, or “Stereo or B” source channels
(see Table 2–2 on page 13).
Table 6–6: Coding of Automatic NICAM/Analog Sound Switching;
Reset Status: Mode 0;
Automatic Sound Select is off (MODUS[0] = 0)
Mode
Description
AUTO_FM [11:0]
Addr. = 00 21hex
ERROR_RATEThreshold/dec
Source Select:
Input at NICAM Path
0
Forced NICAM
(Automatic Switching disabled)
bit[11]
=0
bit[10:1] = 0
bit[0]
=0
none
always NICAM; Mute in
case of no NICAM available
1
Automatic Switching with
internal threshold
(Default, if Automatic Sound
Select is on)
bit[11]
=0
bit[10:1] = 0
bit[0]
=1
700
NICAM or FM/AM,
depending on
ERROR_RATE
2
Automatic Switching with
external threshold
(Customizing of Automatic
Sound Select)
bit[11]
=0
bit[10:1] = 25...1000
= threshold/2
bit[0]
=1
set by customer;
recommended
range: 50...2000
3
Forced Analog Mono
(Automatic Switching disabled)
bit[11]
=1
bit[10:1] = 0
bit[0]
=1
none
88
always FM/AM
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
6.3.2. A2 Threshold
The threshold between Stereo/Bilingual and Mono
Identification for the A2 Standard has been made programmable according to the user’s preferences. An
internal hysteresis ensures robustness and stability.
Table 6–7: Write Register on I2C Subaddress 10hex : A2 Threshold
Register
Address
Function
Name
A2 THRESHOLD Register
A2_THRESH
THRESHOLDS
00 22hex (write)
Defines threshold of all A2 and EIA_J standards for Stereo and Bilingual
detection
bit[15:12]
bit[11:0]
must be set to 0
7F0hex
...
190hex
...
0A0hex
force Mono Identification
default setting after reset
minimum Threshold for stable detection
recommended range : 0A0hex...3C0hex
6.3.3. Carrier-Mute Threshold
The Carrier-Mute threshold has been made programmable according to the user’s preferences. An internal
hysteresis ensures stable behavior.
Table 6–8: Write Register on I2C Subaddress 10hex : Carrier-Mute Threshold
Register
Address
Function
Name
Carrier-Mute THRESHOLD Register
CM_THRESH
THRESHOLDS
00 24hex (write)
Defines threshold for the carrier mute feature
bit[15:12]
bit[11:0]
must be set to 0
000hex
...
02Ahex
...
7FFhex
Carrier-Mute always ON (both channels muted)
default setting after reset
Carrier-Mute always OFF (both channels forced
on)
recommended range : 14hex...50hex
Micronas
89
MSP 34x2G
PRELIMINARY DATA SHEET
6.3.4. Register AD_CV
The use of this register is no longer recommended.
Use it only in cases where compatibility to the
MSP 34x0D is required. Using the STANDARD
SELECTION register together with the MODUS register provides a more economic way to program the
MSP 34x2G.
Table 6–9: AD_CV Register; reset status: all bits are “0”
AD_CV
(00 BBhex)
Automatic setting by
STANDARD SELECT Register
Bit
Function
Settings
2-8, 0A-60hex
9
[0]
not used
must be set to 0
0
0
[1−6]
Reference level in case of Automatic Gain
Control = on (see Table 6–10). Constant
gain factor when Automatic Gain Control =
off (see Table 6–11).
101000
100011
[7]
Determination of Automatic Gain or
Constant Gain
0 = constant gain
1 = automatic gain
1
1
[8]
Selection of Sound IF source
(identical to MODUS[8])
0 = ANA_IN1+
1 = ANA_IN2+
X
X
[9]
MSP-Carrier-Mute Feature
0 = off: no mute
1 = on: mute as described in section 2.2.2.
1
1
[10−15]
not used
must be set to 0
0
0
X : not affected while choosing the TV sound standard by means of the STANDARD SELECT Register
Table 6–10: Reference Values for Active AGC (AD_CV[7] = 1)
Application
Input Signal Contains
AD_CV [6:1]
Ref. Value
AD_CV [6:1]
in integer
Range of Input Signal
at pin ANA_IN1+
and ANA_IN2+
− FM Standards
1 or 2 FM Carriers
101000
40
0.10 − 3 Vpp1)
− NICAM/FM
1 FM and 1 NICAM Carrier
101000
40
0.10 − 3 Vpp1)
− NICAM/AM
1 AM and 1 NICAM Carrier
100011
35
0.10 − 1.4 Vpp
(recommended: 0.10 − 0.8 Vpp)
− NICAM only
1 NICAM Carrier only
010100
20
0.05 − 1.0 Vpp
SAT
1 or more FM Carriers
100011
35
0.10 − 3 Vpp1)
ADR
FM and ADR carriers
see DRP 3510A data sheet
Terrestrial TV
1)
90
For signals above 1.4 Vpp, the minimum gain of 3 dB is switched, and overflow of the A/D converter may result. Due to the
robustness of the internal processing, the IC works up to and even more than 3 Vpp, if norm conditions of FM/NICAM or
FM1/FM2 ratio are supposed. In this overflow case, a loss of FM-S/N ratio of about 10 dB may appear.
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
Table 6–11: AD_CV parameters for Constant Input Gain (AD_CV[7]=0)
Step
AD_CV [6:1]
Constant Gain
Gain
Input Level at pin ANA_IN1+ and ANA_IN2+
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
000000
000001
000010
000011
000100
000101
000110
000111
001000
001001
001010
001011
001100
001101
001110
001111
010000
010001
010010
010011
010100
3.00 dB
3.85 dB
4.70 dB
5.55 dB
6.40 dB
7.25 dB
8.10 dB
8.95 dB
9.80 dB
10.65 dB
11.50 dB
12.35 dB
13.20 dB
14.05 dB
14.90 dB
15.75 dB
16.60 dB
17.45 dB
18.30 dB
19.15 dB
20.00 dB
maximum input level: 3 Vpp (FM) or 1 Vpp (NICAM)1)
1)
maximum input level: 0.14 Vpp
For signals above 1.4 Vpp, the minimum gain of 3 dB is switched and overflow of the A/D converter may result. Due to the
robustness of the internal processing, the IC works up to and even more than 3 Vpp, if norm conditions of FM/NICAM or
FM1/FM2 ratio are supposed. In this overflow case, a loss of FM-S/N ratio of about 10 dB may appear.
6.3.5. Register MODE_REG
Note: The use of this register is no longer recommended. It should be used only in cases where software compatibility to the MSP 34x0D is required.
Using the STANDARD SELECTION register together
with the MODUS register provides a more economic
way to program the MSP 34x2G.
As soon as this register is applied, the MSP 34x2G
works in the MSP 34x0D Compatibility Mode. In this
mode: BTSC, EIA-J, and FM-Radio are disabled.
Only MSP 34x0D features are available; the use of
MODUS and STATUS register is not allowed. The
MSP 34x2G is reset to the normal mode by first programming the MODUS register, followed by transmitting a valid standard code to the STANDARD SELECTION register.
The register ‘MODE_REG’ contains the control bits
determining the operation mode of the MSP 34x2G in
the MSP 34x0D Compatibility Mode; Table 6–12
explains all bit positions.
Micronas
91
MSP 34x2G
PRELIMINARY DATA SHEET
Table 6–12: Control word ‘MODE_REG’; reset status: all bits are “0”
MODE_REG 00 83hex
Bit
Function
[0]
not used
[1]
DCTR_TRI
[2]
Comment
Automatic setting by
STANDARD SELECT Register
Definition
2-5
8, A, B
9
0 : must be used
0
0
0
Digital control out
0/1 tri-state
0 : active
1 : tri-state
X
X
X
I2S_TRI
I2S outputs tri-state
(I2S_CL, I2S_WS,
I2S_DA_OUT)
0 : active
1 : tri-state
X
X
X
[3]
I2S Mode1)
Master/Slave mode
of the I2S bus
0 : Master
1 : Slave
X
X
X
[4]
I2S_WS Mode
WS due to the Sony or
Philips-Format
0 : Sony
1 : Philips
X
X
X
[5]
Audio_CL_OUT
Switch
Audio_Clock_Output
to tri-state
0 : on
1 : tri-state
X
X
X
[6]
NICAM1)
Mode of MSP-Ch1
0 : FM
1 : Nicam
0
1
1
[7]
not used
0 : must be used
0
0
0
[8]
FM AM
Mode of MSP-Ch2
0 : FM
1 : AM
0
0
1
[9]
HDEV
High Deviation Mode
(channel matrix must be
sound A)
0 : normal
1 : high deviation mode
0
0
0
[11:10]
not used
0 : must be used
0
0
0
[12]
MSP-Ch1 Gain
see also Table 6–14
0 : Gain = 6 dB
1 : Gain = 0 dB
0
0
0
[13]
FIR1-Filter
Coeff. Set
see also Table 6–14
0 : use FIR1
1 : use FIR2
1
0
0
[14]
ADR
Mode of MSP-Ch1/
ADR-Interface
0 : normal mode/tri-state
1 : ADR-mode/active
0
0
0
[15]
AM-Gain
Gain for AM
Demodulation
0 : 0 dB (default. of MSPB)
1 :12 dB (recommended)
1
1
1
X: not affected by
short-programming
92
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
Table 6–13: Loading sequence for FIR-coefficients
FIR1 00 01hex (MSP-Ch1: NICAM/FM2)
No.
Symbol Name
Bits
1
NICAM/FM2_Coeff. (5)
8
2
NICAM/FM2_Coeff. (4)
8
3
NICAM/FM2_Coeff. (3)
8
4
NICAM/FM2_Coeff. (2)
8
5
NICAM/FM2_Coeff. (1)
8
6
NICAM/FM2_Coeff. (0)
8
The loading sequences must be obeyed. To change a
coefficient set, the complete block FIR1 or FIR2 must
be transmitted.
Value
Note: For compatibility with MSP 3410B, IMREG1 and
IMREG2 have to be transmitted. The value for
IMREG1 and IMREG2 is 004. Due to the partitioning to
8-bit units, the values 04hex, 40hex, and 00hex arise.
see Table 6–14
6.3.7. DCO-Registers
Note: The use of this register is no longer recommended. It should be used only in cases where software-compatibility to the MSP 34x0D is required.
Using the STANDARD SELECTION register together
with the MODUS register provides a more economic
way to program the MSP 34x2G.
FIR2 00 05hex (MSP-Ch2: FM1/AM)
No.
Symbol Name
Bits
Value
1
IMREG1
8
04hex
2
IMREG1/ IMREG2
8
40hex
3
IMREG2
8
00hex
4
FM/AM_Coef (5)
8
5
FM/AM_Coef (4)
8
6
FM/AM_Coef (3)
8
7
FM/AM_Coef (2)
8
If manual setting of the tuning frequency is required, a
set of 24-bit registers determining the mixing frequencies of the quadrature mixers can be written manually
into the IC. In Table 6–15, some examples of DCO registers are listed. It is necessary to divide them up into
low part and high part. The formula for the calculation
of the registers for any chosen IF frequency is as follows:
8
FM/AM_Coef (1)
8
INCRdec = int(f/fs ⋅ 224)
9
FM/AM_Coef (0)
8
with: int = integer function
f = IF frequency in MHz
fS = sampling frequency (18.432 MHz)
see Table 6–14
6.3.6. FIR-Parameter, Registers FIR1 and FIR2
Note: The use of this register is no longer recommended. It should be used only in cases where software compatibility to the MSP 34x0D is required.
Using the STANDARD SELECTION register together
with the MODUS register provides a more economic
way to program the MSP 34x2G.
When selecting a TV-sound standard by means of the
STANDARD SELECT register, all frequency tuning is
performed automatically.
Conversion of INCR into hex-format and separation of
the 12-bit low and high parts lead to the required register values (DCO1_HI or _LO for MSP-Ch1, DCO2_HI
or LO for MSP-Ch2).
Data-shaping and/or FM/AM bandwidth limitation is
performed by a pair of linear phase Finite Impulse
Response filters (FIR-filter). The filter coefficients are
programmable and are either configured automatically
by the STANDARD SELECT register or written manually by the control processor via the control bus. Two
not necessarily different sets of coefficients are
required: one for MSP-Ch1 (NICAM or FM2) and one
for MSP-Ch2 (FM1 = FM-mono). In Table 6–14 several
coefficient sets are proposed.
To load the FIR-filters, the following data values are to
be transferred 8 bits at a time embedded
LSB-bound in a 16-bit word.
Micronas
93
MSP 34x2G
PRELIMINARY DATA SHEET
Table 6–14: 8-bit FIR-coefficients (decimal integer); reset status: all coefficients are “0”
Coefficients for FIR1 00 01hex and FIR2 00 05hex
Terrestrial TV Standards
FM - Satellite
FIR filter corresponds to a
band-pass with a bandwidth of B = 130 to 500 kHz
B
frequency
fc
B/G-, D/KNICAM-FM
Coef(i)
INICAM-FM
LNICAM-AM
B/G-, D/K-,
M-Dual FM
130
kHz
180
kHz
200
kHz
280
kHz
380
kHz
500
kHz
Autosearch
FIR2
FIR2
FIR2
FIR2
FIR2
FIR2
FIR2
FIR2
FIR1
FIR2
FIR1
FIR2
FIR1
FIR2
0
−2
3
2
3
−2
−4
3
73
9
3
−8
−1
−1
−1
1
−8
18
4
18
−8
−12
18
53
18
18
−8
−9
−1
−1
2
−10
27
−6
27
−10
−9
27
64
28
27
4
−16
−8
−8
3
10
48
−4
48
10
23
48
119
47
48
36
5
2
2
4
50
66
40
66
50
79
66
101
55
66
78
65
59
59
5
86
72
94
72
86
126
72
127
64
72
107
123
126
126
ModeREG[12]
0
0
0
0
1
1
1
1
1
1
0
ModeREG[13]
0
0
0
1
1
1
1
1
1
1
0
For compatibility, except for the FIR2-AM and the Autosearch-sets, the FIR-filter programming as used for the MSP 3410B is also possible.
ADR coefficients are listed in the DRP data sheet.
Table 6–15: DCO registers for the MSP 34x2G; reset status: DCO_HI/LO = “0000”
DCO1_LO 00 93hex, DCO1_HI 00 9Bhex; DCO2_LO 00 A3hex, DCO2_HI 00 ABhex
Freq. MHz
DCO_HI/hex
DCO_LO/hex
Freq. MHz
DCO_HI/hex
DCO_LO/hex
4.5
03E8
000
5.04
5.5
5.58
5.7421875
0460
04C6
04D8
04FC
0000
038E
0000
00AA
5.76
5.85
5.94
0500
0514
0528
0000
0000
0000
6.0
6.2
6.5
6.552
0535
0561
05A4
05B0
0555
0C71
071C
0000
6.6
6.65
6.8
05BA
05C5
05E7
0AAA
0C71
01C7
7.02
0618
0000
7.2
0640
0000
7.38
0668
0000
7.56
0690
0000
94
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
6.4. Manual/Compatibility Mode:
Description of Demodulator Read Registers
Table 6–16: NICAM operation modes as defined by
the EBU NICAM 728 specification
Note: The use of these register is no longer recommended. It should be used only in cases where software compatibility to the MSP 34x0D is required.
Using the STANDARD SELECTION register together
with the STATUS register provides a more economic
way to program the MSP 34x2G and to retrieve information from the IC.
All registers except C_AD_BITs are 8 bits wide. They
can be read out of the RAM of the MSP 34x2G if the
MSP 34x0D Compatibility Mode is required.
All transmissions take place in 16-bit words. The valid
8-bit data are the 8 LSBs of the received data word.
If the Automatic Sound Select feature is not used, the
NICAM or FM-identification parameters must be read
and evaluated by the controller in order to enable
appropriate switching of the channel select matrix of
the baseband processing part. The FM-identification
registers are described in section 6.6.1. To handle the
NICAM-sound and to observe the NICAM-quality, at
least the registers C_AD_BITS and ERROR_RATE
must be read and evaluated by the controller. Additional data bits and CIB bits, if supplied by the NICAM
transmitter, can be obtained by reading the registers
ADD_BITS and CIB_BITS.
C4
C3
C2
C1
Operation Mode
0
0
0
0
Stereo sound (NICAMA/B),
independent mono sound (FM1)
0
0
0
1
Two independent mono signals
(NICAMA, FM1)
0
0
1
0
Three independent mono channels
(NICAMA, NICAMB, FM1)
0
0
1
1
Data transmission only; no audio
1
0
0
0
Stereo sound (NICAMA/B), FM1
carries same channel
1
0
0
1
One mono signal (NICAMA). FM1
carries same channel as NICAMA
1
0
1
0
Two independent mono channels
(NICAMA, NICAMB). FM1 carries
same channel as NICAMA
1
0
1
1
Data transmission only; no audio
x
1
x
x
Unimplemented sound coding
option (not yet defined by EBU
NICAM 728 specification)
AUTO_FM: monitor bit for the AUTO_FM Status:
0: NICAM source is NICAM
1: NICAM source is FM
Note: It is no longer necessary to read out and evaluate the C_AD_BITS. All evaluation is performed in the
MSP and indicated in the STATUS register.
6.4.1. NICAM Mode Control/Additional Data Bits
Register
NICAM operation mode control bits and A[2:0] of the
additional data bits.
Format:
6.4.2. Additional Data Bits Register
11
...
7
6
5
4
3
2
1
0
Contains the remaining 8 of the 11 additional data bits.
The additional data bits are not yet defined by the
NICAM 728 system.
Auto
_FM
...
A[2]
A[1]
A[0]
C4
C3
C2
C1
S
Format:
MSB
C_AD_BITS 00 23hex
LSB
Important: “S” = Bit[0] indicates correct NICAM-synchronization (S = 1). If S = 0, the MSP 3411/3451G
has not yet synchronized correctly to frame and
sequence, or has lost synchronization. The remaining
read registers are therefore not valid. The MSP mutes
the NICAM output automatically and tries to synchronize again as long as MODE_REG[6] is set.
The operation mode is coded by C4-C1 as shown in
Table 6–16.
MSB
ADD_BITS 00 38hex
7
6
5
4
3
2
1
0
A[10]
A[9]
A[8]
A[7]
A[6]
A[5]
A[4]
A[3]
6.4.3. CIB Bits Register
CIB bits 1 and 2 (see NICAM 728 specifications).
Format:
MSB
Micronas
LSB
CIB_BITS 00 3Ehex
LSB
7
6
5
4
3
2
1
0
x
x
x
x
x
x
CIB1
CIB2
95
MSP 34x2G
PRELIMINARY DATA SHEET
6.4.7. Automatic Search Function for FM-Carrier
Detection in Satellite Mode
6.4.4. NICAM Error Rate Register
ERROR_RATE
00 57hex
Error free
0000hex
maximum error rate
07FFhex
The AM demodulation ability of the MSP 34x2G offers
the possibility to calculate the “field strength” of the
momentarily selected FM carrier, which can be read
out by the controller. In SAT receivers, this feature can
be used to make automatic FM carrier search possible.
Average error rate of the NICAM reception in a time
interval of 182 ms, which should be close to 0. The initial and maximum value of ERROR_RATE is 2047.
This value is also active if the NICAM bit of
MODE_REG is not set. Since the value is achieved by
filtering, a certain transition time (approx. 0.5 sec) is
unavoidable. Acceptable audio may have error rates
up to a value of 700 int. Individual evaluation of this
value by the controller and an appropriate threshold
may define the fallback mode from NICAM to FM/
AM-Mono in case of poor NICAM reception.
The bit error rate per second (BER) can be calculated
by means of the following formula:
BER = ERROR_RATE * 12.3*10−6 /s
6.4.5. PLL_CAPS Readback Register
It is possible to read out the actual setting of the
PLL_CAPS. In standard applications, this register is
not of interest for the customer.
PLL_CAPS
02 1Fhex L
minimum frequency
1111 1111
FFhex
nominal frequency
0101 0110
RESET
56hex
maximum frequency
0000 0000
00hex
PLL_CAPS
02 1Fhex H
PLL open
xxxx xxx0
PLL closed
xxxx xxx1
For this, the MSP has to be switched to AM-mode
(MODE_REG[8]), FM-Prescale must be set to
7Fhex = +127dec, and the FM DC notch (see section
6.5.7.) must be switched off. The sound-IF frequency
range must now be “scanned” in the MSP-channel 2 by
means of the programmable quadrature mixer with an
appropriate incremental frequency (i.e. 10 kHz). After
each incrementation, a field strength value is available
at the quasi-peak detector output (quasi-peak detector
source must be set to FM), which must be examined
for relative maxima by the controller. This results in
either continuing search or switching the MSP back to
FM demodulation mode.
During the search process, the FIR2 must be loaded
with the coefficient set “AUTOSEARCH”, which
enables small bandwidth, resulting in appropriate field
strength characteristics. The absolute field strength
value (can be read out of “quasi-peak detector output
FM1”) also gives information on whether a main FM
carrier or a subcarrier was detected; and as a practical
consequence, the FM bandwidth (FIR1/2) and the
deemphasis (50 µs or adaptive) can be switched
accordingly.
Due to the fact that a constant demodulation frequency
offset of a few kHz leads to a DC level in the demodulated signal, further fine tuning of the found carrier can
be achieved by evaluating the “DC Level Readout
FM1”. Therefore, the FM DC Notch must be switched
on, and the demodulator part must be switched back to
FM-demodulation mode.
For a detailed description of the automatic search
function, please refer to the corresponding MSP Windows software.
6.4.6. AGC_GAIN Readback Register
It is possible to read out the actual setting of
AGC_GAIN in Automatic Gain Mode. In standard
applications, this register is not of interest for the customer.
AGC_GAIN
02 1Ehex
max. amplification
(20 dB)
0001 0100
14hex
min. amplification
(3 dB)
0000 0000
00hex
96
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
6.5. Manual/Compatibility Mode:
Description of DSP Write Registers
6.5.2. Volume Modes of SCART1/2 Outputs
6.5.1. Additional Channel Matrix Modes
Loudspeaker Matrix
00 08hex
L
Headphone Matrix
00 09hex
L
SCART1 Matrix
00 0Ahex
L
SCART2 Matrix
00 41hex
L
I2S Matrix
00 0Bhex
L
Quasi-Peak
Detector Matrix
00 0Chex
L
SUM/DIFF
0100 0000
40hex
AB_XCHANGE
0101 0000
50hex
PHASE_CHANGE_B
0110 0000
60hex
PHASE_CHANGE_A
0111 0000
70hex
A_ONLY
1000 0000
80hex
B_ONLY
1001 0000
90hex
Volume Mode SCART1
00 07hex
[3:0]
Volume Mode SCART2
00 40hex
[3:0]
linear
0000
RESET
0hex
logarithmic
0001
1hex
Volume SCART1
00 07hex
H
Volume SCART2
00 40hex
H
OFF
0000 0000
RESET
00hex
0 dB gain
(digital full scale (FS) to 2
VRMS output)
0100 0000
40hex
+6 dB gain (−6 dBFS to 2
VRMS output)
0111 1111
7Fhex
Linear Mode
6.5.3. FM Fixed Deemphasis
This table shows additional modes for the channel
matrix registers.
The sum/difference mode can be used together with
the quasi-peak detector to determine the sound material mode. If the difference signal on channel B (right)
is near to zero, and the sum signal on channel A (left)
is high, the incoming audio signal is mono. If there is a
significant level on the difference signal, the incoming
audio is stereo.
FM Deemphasis
00 0Fhex
H
50 µs
0000 0000
RESET
00hex
75 µs
0000 0001
01hex
OFF
0011 1111
3Fhex
Note: This register is initialised during STANDARD
SELECTION and is automatically updated when Automatic Sound Select (MODUS[0]=1) is on.
6.5.4. FM Adaptive Deemphasis
FM Adaptive
Deemphasis WP1
00 0Fhex
L
OFF
0000 0000
RESET
00hex
WP1
0011 1111
3Fhex
Note: This register is initialised during STANDARD
SELECTION and is automatically updated when Automatic Sound Select (MODUS[0]=1) is on.
6.5.5. NICAM Deemphasis
A J17 Deemphasis is always applied to the NICAM signal. It is not switchable.
Micronas
97
MSP 34x2G
PRELIMINARY DATA SHEET
6.5.6. Identification Mode for A2 Stereo Systems
Identification Mode
00 15hex
L
Standard B/G
(German Stereo)
0000 0000
RESET
00hex
Standard M
(Korean Stereo)
0000 0001
01hex
Reset of Ident-Filter
0011 1111
6.6. Manual/Compatibility Mode:
Description of DSP Read Registers
All readable registers are 16-bit wide. Transmissions
via I2C bus have to take place in 16-bit words. Some of
the defined 16-bit words are divided into low and high
byte, thus holding two different control entities.
These registers are not writable.
3Fhex
To shorten the response time of the identification algorithm after a program change between two FM-Stereo
capable programs, the reset of the ident-filter can be
applied.
Sequence:
1. Program change
2. Reset ident-filter
6.6.1. Stereo Detection Register
for A2 Stereo Systems
Stereo Detection
Register
00 18hex
Stereo Mode
Reading
(two’s complement)
MONO
near zero
STEREO
positive value (ideal
reception: 7Fhex)
BILINGUAL
negative value (ideal
reception: 80hex)
3. Set identification mode back to standard B/G or M
4. Wait approx. 500 ms
5. Read stereo detection register
Note: This register is initialized during STANDARD
SELECTION and is automatically updated when Automatic Sound Select (MODUS[0]=1) is on.
H
Note: It is no longer necessary to read out and evaluate the A2 identification level. All evaluation is performed in the MSP and indicated in the STATUS register.
6.5.7. FM DC Notch
6.6.2. DC Level Register
The DC compensation filter (FM DC Notch) for FM
input can be switched off. This is used to speed up the
automatic search function (see Section 6.4.7.). In normal FM-mode, the FM DC Notch should be switched
on.
FM DC Notch
00 17hex
L
ON
0000 0000
Reset
00hex
OFF
0011 1111
3Fhex
98
DC Level Readout
FM1 (MSP-Ch2)
00 1Bhex
H+L
DC Level Readout
FM2 (MSP-Ch1)
00 1Chex
H+L
DC Level
[8000hex ... 7FFFhex]
values are 16 bit two’s
complement
The DC level register measures the DC component of
the incoming FM signals (FM1 and FM2). This can be
used for seek functions in satellite receivers and for IF
FM frequencies fine tuning. A too low demodulation
frequency (DCO) results in a positive DC-level and
vice versa. For further processing, the DC content of
the demodulated FM signals is suppressed. The time
constant τ, defining the transition time of the DC Level
Register, is approximately 28 ms.
Micronas
PRELIMINARY DATA SHEET
MSP 34x2G
6.7. Demodulator Source Channels in Manual Mode
6.8. Exclusions of Audio Baseband Features
6.7.1. Terrestric Sound Standards
In general, all functions can be switched independently.
Two exceptions exist:
Table 6–17 shows the source channel assignment of
the demodulated signals in case of manual mode for
all terrestric sound standards. See Table 2–2 for the
assignment in the Automatic Sound Select mode. In
manual mode for terrestric sound standards, only two
demodulator sources are defined.
1. NICAM cannot be processed simultaneously with
the FM2 channel.
2. FM adaptive deemphasis cannot be processed
simultaneously with FM-identification.
6.9. Compatibility Restrictions to MSP 34x0D
6.7.2. SAT Sound Standards
Table 6–18 shows the source channel assignment of
the demodulated signals for SAT sound standards.
The MSP 34x2G is fully hardware compatible to the
MSP 34x0D. However, to substitute a MSP 34x0D by
the corresponding MSP 34x2G, the controller software
has to be adapted slightly:
1. The register FM-Matrix (00 0Ehex low part) must be
changed from “no matrix (00hex)” to “sound A mono
(03hex)” during mono transmission of all TV-sound
standards (see also Table 6–17).
2. With the MSP 34x2G, the STANDARD SELECTION
initializes the FM-deemphasis, which is not the case
for the MSP 34x0D. So, if STANDARD SELECTION
is applied, this I2C instruction can be omitted.
Micronas
99
MSP 34x2G
PRELIMINARY DATA SHEET
Table 6–17: Manual Sound Select Mode for Terrestric Sound Standards
Source Channels of Sound Select Block
Broadcasted
Sound
Standard
Selected MSP
Standard
Code
Broadcasted
Sound Mode
FM Matrix
B/G-FM
D/K-FM
M-Korea
M-Japan
03
04, 05
02
30
MONO
B/G-NICAM
L-NICAM
I-NICAM
D/K-NICAM
D/K-NICAM
08
09
0A
0B
0C
(with high
deviation FM)
20
BTSC
FM/AM
Stereo or A/B
(use 0 for channel select)
(use 1 for channel select)
Sound A Mono
Mono
Mono
STEREO
German Stereo
Korean Stereo
Stereo
Stereo
BILINGUAL,
Languages A and B
No Matrix
Left = A
Right = B
Left = A
Right = B
NICAM not available
or NICAM error rate
too high
Sound A Mono1)
analog Mono
no sound
MONO
Sound A Mono1)
analog Mono
NICAM Mono
STEREO
Sound A Mono1)
analog Mono
NICAM Stereo
BILINGUAL,
Languages A and B
Sound A Mono1)
analog Mono
Left = NICAM A
Right = NICAM B
MONO
Sound A Mono
Mono
Mono
STEREO
Korean Stereo
Stereo
Stereo
MONO + SAP
Sound A Mono
Mono
Mono
STEREO + SAP
Korean Stereo
Stereo
Stereo
Sound A Mono
Mono
Mono
No Matrix
Left = Mono
Right = SAP
Left = Mono
Right = SAP
MONO
Sound A Mono
Mono
Mono
STEREO
Korean Stereo
Stereo
Stereo
MONO
21
STEREO
MONO + SAP
STEREO + SAP
FM-Radio
1)
40
with AUTO_FM:
analog Mono
Automatic refresh to Sound A Mono, do not write any other value to the register FM Matrix!
Table 6–18: Manual Sound Select Modes for SAT-Modes
Source Channels of Sound Select Block for SAT-Modes
Broadcasted
Sound
Standard
FM SAT
100
Selected
MSP Standard
Code
Broadcasted
Sound Mode
FM Matrix
FM/AM
Stereo or A/B
Stereo or A
Stereo or B
(source select: 0)
(source select: 1)
(source select: 3)
(source select: 4)
6, 50hex
MONO
Sound A Mono
Mono
Mono
Mono
Mono
51hex
STEREO
No Matrix
Stereo
Stereo
Stereo
Stereo
BILINGUAL
No Matrix
Left = A (FM1)
Right = B (FM2)
Left = A (FM1)
Right = B (FM2)
A (FM1)
B (FM2)
Micronas
MSP 34x2G
PRELIMINARY DATA SHEET
7. Appendix D: Application Information
7.1. Phase Relationship of Analog Outputs
The analog output signals: Loudspeaker, headphone,
and SCART2 all have the same phases. The user
does not need to correct output phases when using
these analog outputs directly. The SCART1 output has
opposite phase.
Using the I2S-outputs for other DSPs or D/A converters, care must be taken to adjust for the correct phase.
If the attached coprocessor is one of the MSP family,
the following schematics help to determine the phase
relationship.
I2S_IN1/2 I2S_OUT1/2
Loudspeaker
Center/Surround
Headphone
Audio
Baseband
Processing
SCART1-Ch.
SCART1
SCART1
SCART2
SCART3
SCART4
SCART
DSP
Input
Select
SCART2-Ch.
SCART2
MONO
MONO, SCART1...4
SCART
Output Select
Fig. 7–1: Phase diagram of the MSP 34x2G
Micronas
101
MSP 34x2G
PRELIMINARY DATA SHEET
7.2. Application Circuit
IF 2 IN
if ANA_IN2+ not used
Signal GND
100
nF
8 V(5 V)
+
3.3
µF
330 nF
330 nF
330 nF
AHVSS
+
+
XTAL_OUT (63) 72
10 µF
AGNDC (42) 45
VREFTOP (54) 58
ANA_IN1+
1 KΩ
10 µF
330 nF
AHVSS
1 µF
60 (55) MONO_IN
1 nF
1 µF
1 nF
1 µF
1 nF
1 µF
1 nF
1 µF
Loudspeaker
DACM_R (28) 27
56 (52) SC1_IN_L
DACM_SUB (31) 30
57 (53) SC1_IN_R
Center
DACM_C (30) 29
53 (49) SC2_IN_L
54 (50) SC2_IN_R
Surround
DACM_S (32) 31
52 (48) ASG
330 nF
Alternative circuit for
ANA_IN1+for more
attenuation of video
components:
DACM_L (29) 28
55 (51) ASG
330 nF
56 pF
18.432
MHz
+
56 pF
ANA_IN2+ (60) 69
ANA_IN− (59) 68
56 pF
ANA_IN1+ (58) 67
56 pF
100
nF
100 pF
CAPL_A (38) 38
10
µF -
IF 1 IN
XTAL_IN (62) 71
Tuner 1
C s. section 4.6.2.
CAPL_M (40) 40
Tuner 2
1 nF
50 (46) SC3_IN_L
1 µF
DACA_L (26) 25
51 (47) SC3_IN_R
330 nF
AHVSS
49 (45) ASG
330 nF
5V
330 nF
1 nF
MSP 34x2G
48 (44) SC4_IN_R
80 (7) STANDBYQ
5V
1 µF
Headphone
DACA_R (25) 24
47 (43) SC4_IN_L
1 nF
SC1_OUT_L (37) 37
DVSS
79 (6) ADR_SEL
SC1_OUT_R (36) 36
DVSS
3 (10) I2C_DA
SC2_OUT_L (34) 34
2 (9) I2C_CL
9 (16) ADR_WS
SC2_OUT_R (33) 33
10 (17) ADR_CL
8 (15) ADR_DA
D_CTR_I/O_0 (5) 78
5 (12) I2S_WS
D_CTR_I/O_1 (4) 77
100 Ω 22 µF
+
100 Ω 22 µF
+
100 Ω 22 µF
+
100 Ω 22 µF
+
4 (11) I2S_CL
7 (14) I2S_DA_IN1
AUD_CL_OUT (1) 74
17 (20) I2S_DA_IN2
26 (27) VREF2
35 (35) VREF1
39 (39) AHVSUP
62 (56) AVSS
AHVSS
8V
(5 V)
AHVSS
16 (19) DVSS
66 (57) AVSUP
5V
AHVSS
Note:
470
pF
1.5
nF
10
µF
AHVSS
5V
470
pF
1.5
nF
10
µF
AVSS
(from Controller, see section 4.6.3.3.)
13 (18) DVSUP
21 (24) RESETQ
RESETQ
220
pF
470
pF
1.5
nF
10
µF
43 (41) AHVSS
TESTEN (61) 70
6 (13) I2S_DA_OUT
Decoupling capacitors from
− DVSUP to DVSS,
− AVSUP to AVSS, and
− AHVSUP to AHVSS
are recommended as closely
as possible to supply pins (see
note on page 56).
Note: Pin numbers refer to the PQFP80 package, numbers in brackets refer to the PSDIP64 package.
102
Micronas
PRELIMINARY DATA SHEET
Micronas
MSP 34x2G
103
MSP 34x2G
8. Appendix E: MSP 34x2G Version History
MSP 3452G-A1
First release
Micronas GmbH
Hans-Bunte-Strasse 19
D-79108 Freiburg (Germany)
P.O. Box 840
D-79008 Freiburg (Germany)
Tel. +49-761-517-0
Fax +49-761-517-2174
E-mail: [email protected]
Internet: www.micronas.com
Printed in Germany
Order No. 6251-520-1PD
104
PRELIMINARY DATA SHEET
9. Data Sheet History
1. Preliminary data sheet: “MSP 34x2G Multistandard
Sound Processor Family with Dolby Surround Pro
Logic”, May 22, 2000, 6251-520-1PD. First release of
the preliminary data sheet.
All information and data contained in this data sheet are without any
commitment, are not to be considered as an offer for conclusion of a
contract, nor shall they be construed as to create any liability. Any new
issue of this data sheet invalidates previous issues. Product availability
and delivery are exclusively subject to our respective order confirmation
form; the same applies to orders based on development samples delivered. By this publication, Micronas GmbH does not assume responsibility for patent infringements or other rights of third parties which may
result from its use.
Further, Micronas GmbH reserves the right to revise this publication and
to make changes to its content, at any time, without obligation to notify
any person or entity of such revisions or changes.
No part of this publication may be reproduced, photocopied, stored on a
retrieval system, or transmitted without the express written consent of
Micronas GmbH.
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