MICRONAS MSP3438G

PRELIMINARY DATA SHEET
MICRONAS
INTERMETALL
Edition July 27, 1999
6251-494-1PD
MSP 3438G
Multistandard
Sound Processor Family
MICRONAS
MSP 3438G
PRELIMINARY DATA SHEET
Contents
Page
Section
Title
5
6
6
7
1.
1.1.
1.2.
1.3.
Introduction
Features of the MSP 34x8G Family
MSP 34x8G Version List
MSP 34x8G Versions and their Application Fields
8
9
9
9
9
10
10
10
12
12
12
12
12
12
13
13
13
13
13
13
14
14
14
14
2.
2.1.
2.2.
2.2.1.
2.2.2.
2.2.3.
2.2.4.
2.3.
2.4.
2.4.1.
2.5.
2.5.1.
2.5.2.
2.5.3.
2.6.
2.6.1.
2.6.2.
2.7.
2.7.1.
2.7.2.
2.8.
2.9.
2.10.
2.11.
Functional Description
Architecture of the MSP 34x8G Family
Sound IF Processing
Analog Sound IF Input
Demodulator: Standards and Features
Preprocessing of Demodulator Signals
Automatic Sound Select
Preprocessing for SCART and I2S Input Signals
Source Selection and Output Channel Matrix
Mixing Unit
Audio Baseband Processing
Automatic Volume Correction (AVC)
Loudspeaker and Aux Outputs
Quasi-Peak Detector
SCART Signal Routing
SCART DSP In and SCART Out Select
Stand-by Mode
I2S Bus Interfaces
Synchronous I2S-Interface(s)
Asynchronous I2S-Interface
ADR Bus Interface
Digital Control I/O Pins and Status Change Indication
Preemphasis
Clock PLL Oscillator and Crystal Specifications
15
15
15
16
17
17
17
17
17
17
17
17
20
21
21
22
24
3.
3.1.
3.1.1.
3.1.2.
3.1.3.
3.1.3.1.
3.1.3.2.
3.1.3.3.
3.1.3.4.
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.
Control Interface
I2C Bus Interface
Device and Subaddresses
Protocol Description
Proposals for General MSP 34x8G I2C Telegrams
Symbols
Write Telegrams
Read Telegrams
Examples
Start-Up Sequence: Power-Up and I2C Controlling
MSP 34x8G Programming Interface
User Registers Overview
Description of User Registers
STANDARD SELECT Register
STANDARD RESULT Register
Write Registers on I2C Subaddress 10hex
Read Registers on I2C Subaddress 11hex
2
MICRONAS INTERMETALL
PRELIMINARY DATA SHEET
MSP 3438G
Contents, continued
Page
Section
Title
25
31
33
33
33
33
33
34
34
34
3.3.2.5.
3.3.2.6.
3.4.
3.5.
3.5.1.
3.5.2.
3.5.3.
3.5.4.
3.5.5.
3.5.6.
Write Registers on I2C Subaddress 12hex
Read Registers on I2C Subaddress 13hex
Programming Tips
Examples of Minimum Initialization Codes
B/G-FM (A2 or NICAM)
BTSC-Stereo
BTSC-SAP with SAP at Loudspeaker Channel
FM-Stereo Radio
Automatic Standard Detection
Software Flow for Interrupt driven STATUS Check
35
35
37
40
43
47
49
49
50
50
50
51
52
53
53
54
55
56
57
59
61
61
62
65
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.
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.
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
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
68
68
69
70
70
71
71
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
MICRONAS INTERMETALL
3
MSP 3438G
PRELIMINARY DATA SHEET
Contents, continued
Page
Section
Title
72
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74
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74
74
75
75
76
77
77
77
77
78
78
79
79
79
79
79
80
80
80
80
80
80
80
82
82
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.
6.4.
6.4.1.
6.4.2.
6.4.3.
6.4.4.
6.4.5.
6.5.
6.5.1.
6.5.2.
6.5.3.
6.5.4.
6.5.5.
6.6.
6.6.1.
6.6.2.
6.7.
6.7.1.
6.7.2.
6.8.
6.9.
Appendix B: Manual Mode
Demodulator Write and Read Registers for Manual Mode
DSP Write and Read Registers for Manual Mode
Manual 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
DCO-Registers
Manual Mode: Description of Demodulator Read Registers
NICAM Mode Control/Additional Data Bits Register
Additional Data Bits Register
CIB Bits Register
NICAM Error Rate Register
Automatic Search Function for FM-Carrier Detection in Satellite Mode
Manual Mode: Description of DSP Write Registers
Additional Channel Matrix Modes
FM Fixed Deemphasis
FM Adaptive Deemphasis
NICAM Deemphasis
Identification Mode for A2 Stereo Systems
Manual Mode: Description of DSP Read Registers
Stereo Detection Registerfor A2 Stereo Systems
DC Level Register
Demodulator Source Channels in Manual Mode
Terrestrial Sound Standards
SAT Sound Standards
Exclusions of Audio Baseband Features
Phase Relationship of Analog Outputs
83
7.
Appendix C: Application Circuit
84
8.
Data Sheet History
4
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
formed by means of an adaptive sample rate converter.
Multistandard Sound Processor Family
The hardware and software description in this document is valid only for the MSP 3438G version A1.
All new versions of the MSP 3438G and all other mentioned members of the MSP 34x8G family will be realized within the MSP 44x8G family with an extended
feature set. Please refer to the appropriate data sheet.
The processed standards include the multichannel
television sound signal (MTS) which conforms to the
recommendations of the BTSC, as well as the Japanese FM-FM multiplex standard (EIA-J). For these
standards, optimum stereo separation is achieved
without any adjustment. In addition, the MSP 34x8G is
also able to receive FM stereo radio and, in conjunction with the DRP 3510, ASTRA Digital Radio (ADR).
1. Introduction
The DBX noise reduction is performed alignment-free.
The MSP 34x8G family of Multistandard Sound Processors covers the sound processing of all analog TVStandards 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. Figure
1–1 shows a simplified functional block diagram of the
MSP 34x8G.
The high-quality A/D and D/A converters offer the full
audio bandwidth of 20 kHz and the backend DSP processing is performed at a 48 kHz sample rate.
The MSP 34x8G has been designed for the usage in
hybrid set-top boxes and multimedia applications. Its
asynchronous I2S slave interface allows the reception
of digital stereo signals with arbitrary sample rates
ranging from 5 to 50 kHz. Synchronization is per-
ADC
Sound IF2
I2S1
2
I S2
I2S3
Demodulator
synchron.
I2S
Several built-in automatic functions detect the actual
sound standard (Automatic Standard Detection) or
evaluate pilot levels and identification signals. Automatic switching between mono/stereo/bilingual is performed by the Automatic Sound Selection.
A status change indication signal makes polling of status information unnecessary.
The ICs are produced in submicron CMOS technology
and are available in the following packages: PQFP80,
PLQFP64, PLCC68, and PSDIP64.
Preprocessing
Prescale
asynchron.
I2S
Source Select
Sound IF1
The MSP 34x8G versions are pin and software compatible to other MSP families. Standard selection
requires only a single I2C transmission.
Loudspeaker
Sound
Processing
DAC
Loudspeaker
Aux
Sound
Processing
DAC
Headphone
/Modulator
I2S
SCART1
DAC
SCART2
SCART3
SCART
DSP
Input
Select
SCART1
ADC
Prescale
SCART4
MONO
DAC
SCART
Output
Select
SCART2
Fig. 1–1: Simplified functional block diagram of the MSP 34x8G
MICRONAS INTERMETALL
5
MSP 3438G
PRELIMINARY DATA SHEET
1.1. Features of the MSP 34x8G Family
Feature
3408
3418
3438
3448
3458
Standard Selection with single I2C transmission
X
X
X
X
X
Automatic Sound Selection (mono, stereo, or bilingual)
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 and Aux channel with volume
X
X
X
X
X
AVC: Automatic Volume Correction
X
X
X
X
X
Processing of all deemphasis filtering
X
X
X
X
X
Two selectable sound IF (SIF) inputs
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 48 kHz I2S inputs; one async. 5..50 kHz I2S input; one 48 kHz I2S output
X
X
X
X
X
Automatic Standard Detection of terrestrial TV standards
X
X
X
X
X
All analog FM-Stereo A2 standards
X
X
X
Simultaneous demodulation of high-deviation FM-Mono and NICAM
X
X
X
Very high-deviation FM-Mono mode
X
X
X
FM demodulation of all analog satellite standards
X
X
X
Adaptive deemphasis for satellite (Wegener-Panda, according to ASTRA specification)
X
X
X
ASTRA Digital Radio (ADR) in conjunction with DRP 3510A
X
X
X
X
X
All NICAM standards
Demodulation of the BTSC multiplex signal and the SAP channel
X
X
X
Alignment-free digital DBX noise reduction
X
X
X
BTSC stereo separation (MSP 3448G also EIA-J) significantly better than specification
X
X
X
SAP and stereo detection for BTSC system
X
X
X
Demodulation of the FM-Radio multiplex signal
X
X
X
Korean FM-Stereo A2 standard
X
X
Alignment-free Japanese standard EIA-J
X
X
1.2. MSP 34x8G Version List
6
Version
Status
Description
MSP 3408G
will be realized as MSP 4408G
A2 Version
MSP 3418G
will be realized as MSP 4418G
NICAM Version (can handle all A2 systems and all NICAM systems)
MSP 3438G
A1 available
BTSC Version
MSP 3448G
will be realized as MSP 4448G
NTSC Version (can handle A2 Korea, BTSC, and Japanese EIA-J)
MSP 3458G
will be realized as MSP 4458G
Global Version (can handle all systems)
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
1.3. MSP 34x8G Versions and their Application Fields
Table 1–1 provides an overview of TV sound standards that can be processed by the MSP 34x8G family. In addition, the MSP 34x8G is able to handle the
terrestrial FM-Radio standard. With the MSP 34x8G, a
complete 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 34x8G Family (details see Appendix A)
System
3408
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
6.5/5.85
FM-Mono/NICAM
PAL
China, Hungary
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
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
USA
10.7
FM-Stereo Radio
3418
B/G
3408
3458
D/K
M
3438
3448
Satellite
FM-Radio
33
ASTRA Digital Radio (ADR)
with DRP 3510A
34 39 MHz
USA, Europe
4.5 9 MHz
SAW Filter
Sound
IF
Mixer
Tuner
Loudspeaker
1
Mono
Vision
Demodulator
Headphone
/ Modulator
MSP 34x8G
2
SCART1
2
Composite
Video
SCART
Inputs
SCART2
2
2
2
2
SCART3
SCART4
I2S3
DolbyDigital /
MPEG
I2S1
Digital
Signal
ADR
SCART1
SCART
Outputs
SCART2
I2S2
ADR
Decoder
Fig. 1–2: Typical MSP 34x8G application
MICRONAS INTERMETALL
7
A
DEMODULATOR
ANA_IN2+
(incl. Carrier Mute)
D
Deemphasis:
50/75 µs
DBX
Panda1
FM/AM
Prescale
FM/AM
Stereo or A / B
0
Loudspeaker
Channel
Matrix
1
AVC
ADR-Bus
Interface
A
(29hex )
I2S_CL3
I2S_WS3
Stereo or B
4
Beeper
(14hex)
Prescale
Volume
Aux
Channel
Matrix
(10hex)
Standard and
Sound
Detection
Σ
Preemphasis
(09hex )
I 2C
DACA_L
D
A
DACA_R
(06hex)
Read Register
(34hex)
I2S
Interface
I2S_DA_OUT
(sync. 48kHz)
(0B hex)
(16hex)
I2S2
I2S
Interface
6
Prescale
synchronization /
Interpolation
I2S
Interface
(12hex)
15
Mix2
Channel
Matrix
2
D
Prescale
I2C
Read Register
Quasi-Peak
Detector
(0Chex)
7
(11hex)
SCART
A
Quasi-Peak
Channel
Matrix
Mix1
Channel
Matrix
I2S3
Prescale
Source Select
5
Prescale
SCART DSP Input Select
I2S_DA_IN3
(async. 5-50kHz)
3
I2S1
I2S_CL
I2S_WS
I2S_DA_IN2
(sync. 48kHz)
Stereo or A
DACM_R
(00hex)
I 2S
Channel
Matrix
I2S
Interface
I2S_DA_IN1
(sync. 48kHz)
NICAM
Deemphasis:
J17
DACM_L
D
(08hex )
(0Ehex)
Decoded Standards:
NICAM
A2
AM
BTSC
EIA-J
SAT
FM-Radio
Volume
Σ
MSP 3438G
AGC
ANA_IN1+
2. Functional Description
8
Automatic
Soundselect
Mix1
(38hex)
scale
Σ
(3ahex)
Mix2
(39hex)
scale
(3bhex)
Volume
SCART1
Channel
Matrix
D
SCART1_L/R
A
(0Ahex)
(0D hex)
(07hex)
Volume
SCART2
Channel
Matrix
SC1_OUT_L
D
SCART2_L/R
A
SC1_OUT_R
(40hex)
SC2_IN_L
SC2_IN_R
SC3_IN_L
SC3_IN_R
SC4_IN_L
SC4_IN_R
MONO_IN
Fig. 2–1: Signal flow block diagram of the MSP 34x8G (input and output names correspond to pin names)
SC2_OUT_L
SC2_OUT_R
PRELIMINARY DATA SHEET
MICRONAS INTERMETALL
SC1_IN_L
SC1_IN_R
SCART Output Select
(41hex)
PRELIMINARY DATA SHEET
2.1. Architecture of the MSP 34x8G Family
Fig. 2–1 on page 8 shows a simplified block diagram of
the IC. The block diagram contains all features of the
MSP 3458G. Other members of the MSP 34x8G family do not have the complete set of features, handling
only a subset of the standards.
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 34x8G. The preselected
sound IF signal is fed into 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. “Appendix C: Application Circuit” on
page 83), 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 34x8G is able to demodulate all TV-sound
standards worldwide including the digital NICAM system. Depending on the MSP 34x8G 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: (Only possible in the MSP 3418G
and MSP 3458G). 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.
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 the DBX noise reduction.
MICRONAS INTERMETALL
MSP 3438G
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 the DBX noise reduction.
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 34x8G 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 34x8G demodulator blocks are described below.
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 34x8G 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 34x8G offers a carrier mute feature,
which is activated automatically if the standard is
selected by means of the STANDARD SELECT register. If no FM carrier is available at one of the two MSP
demodulator channels, the corresponding demodulator output is muted.
9
MSP 3438G
2.2.4. Automatic Sound 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).
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 34x8G automatically falls back from digital NICAM sound to analog FM or AM mono.
Table 2–1 summarizes all actions that take place when
Automatic Sound Select is switched on.
To provide more flexibility, the Automatic Sound Select
block prepares four different source channels of
demodulated sound (Fig 2–3). By choosing one of the
four demodulator channels, the preferred sound mode
can be selected by means of the Source Select registers, independent for all MSP-outputs.
– “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. 2–2 shows the source channel assignment of
demodulated signals in case of manual mode. If manual mode is required, more information can be found in
the section “Demodulator Source Channels in Manual
Mode” on page 80. Fig. 2–3 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.
primary
channel
LS Ch.
Matrix
FM/AM
FM-Matrix
secondary
channel
Prescale
NICAM A
NICAM
NICAM B
Prescale
FM/AM
0
Source Select
All demodulated signals must be processed by a
deemphasis filter and adjusted in level (analog signals
must also be 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.
– “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).
NICAM
(Stereo or A/B)
Output-Ch.
Matrices
must be set
according
the standard
1
SC2 Ch.
Matrix
Fig. 2–2: Source channel assignment of demodulated
signals in Manual Mode
primary
channel
FM/AM
secondary
channel
Prescale
NICAM A
NICAM B
FM/AM
0
Stereo or A/B
1
NICAM
Stereo or A
3
Prescale
Stereo or B
4
Automatic
Sound
Select
LS Ch.
Matrix
Source Select
2.2.3. Preprocessing of Demodulator Signals
PRELIMINARY DATA SHEET
Output-Oh.
Matrices must
be set once to
stereo
SC2 Ch.
Matrix
The following source channels of demodulated sound
are defined:
Fig. 2–3: Source channel assignment of demodulated
signals in Automatic Sound Select Mode
– “FM/AM” channel: Analog mono sound, stereo if
available. In case of NICAM, analog mono only
(FM or AM mono).
2.3. Preprocessing for SCART and
I2S Input Signals
– “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).
The SCART and I2S inputs need only be adjusted in
level by means of the SCART and I2S prescale registers.
10
MICRONAS INTERMETALL
MSP 3438G
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/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.
M-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.
M-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, 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)
20, 21
20
M-BTSC
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 3–6 on page 20.
MICRONAS INTERMETALL
11
MSP 3438G
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, Aux, 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 output channel matrix
can be set to sound A, sound B, stereo, or mono.
If Automatic Sound Select is on, the output channel
matrix can stay fixed to stereo (transparent) for
demodulated signals.
2.4.1. Mixing Unit
Any source can be selected as the input for the two
channels of the Mixing unit. The mixer channel matrices and the scaling factors can be programmed separately for each channel.
After adding up both channels, the signal is fed back
and is available as source 15 (Mix output) of the
Source Selector.
PRELIMINARY DATA SHEET
For input signals ranging from −24 dBr to 0 dBr, the
AVC maintains a fixed output level of −18 dBr. Fig. 2–4
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:
– SCART in-, output 0 dBr = 2.0 Vrms
– Loudspeaker and Aux output 0 dBr = 1.4 Vrms
output level
[dBr]
−12
−18
−24
−30
−24
−18
−12
−6
0
+6
input level
[dBr]
Fig. 2–4: Simplified AVC characteristics
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 the AVC
register (see page 28).
12
2.5.2. Loudspeaker and Aux Outputs
The Loudspeaker and Aux output channels are adjustable in volume. A square wave beeper with adjustable
frequency and volume can be added to them.
2.5.3. 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
MICRONAS INTERMETALL
PRELIMINARY DATA SHEET
MSP 3438G
2.6. SCART Signal Routing
2.7.1. Synchronous I2S-Interface(s)
2.6.1. SCART DSP In and SCART Out Select
The synchronous I2S bus interface consists of the
pins:
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 page 30).
2.6.2. Stand-by Mode
If the MSP 34x8G 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 (see
details on the power-up sequence in Fig. 4–22 on
page 55), all internal registers except the ACB register
(page 30) are reset to the default configuration (see
Table 3–4 on page 18). 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.
– I2S_DA_IN1, (I2S_DA_IN2/3 for PQFP80 package):
signals are accepted, in the format:
two channels per line, 2*16 bits per sampling cycle
(48 kHz), MSB first.
– I2S_DA_OUT:
For output, two channels. 2*16 bits per sampling
cycle (48 kHz) are transmitted.
– I2S_CL:
Gives the timing for the transmission of I2S serial
data.
– I2S_WS:
The word strobe line defines the left and right sample.
If the MSP 34x8G serves as the master on the I2S
interface, the clock and word strobe lines are driven by
the MSP. In slave mode, these lines are input to the
MSP 34x8G and the MSP clock is synchronized to
384 times the I2S_WS rate (48 kHz). NICAM operation
is not possible in slave mode.
An I2S timing diagram is shown in Fig. 4–24 on
page 58.
2.7.2. Asynchronous I2S-Interface
2.7. I2S Bus Interfaces
Routing can be done with each input source and output channel via the I2S inputs and outputs. The
MSP 34x8G has two different kinds of interfaces: synchronous master/slave input/output interfaces running
on 48 kHz and an asynchronous slave interface, which
is capable of dealing with arbitrary sample rates ranging from 5...50 kHz.
All interfaces support two possible formats:
1. The SONY format: I2S Wordstrobe changes at the
word boundaries.
2. The PHILIPS format: I2S Wordstrobe changes one
I2S Clock period before the word boundaries.
All I2S options can be set by means of the MODUS
register (see page 23).
The following pins are used for the asynchronous I2S
bus interface:
– I2S_WS3 (serves only as input)
– I2S_CL3 (serves only as input)
– I2S_DA_IN2/3 (I2S_DA_IN3 in PQFP80 package).
The interface accepts I2S-input streams with MSB first
and with sample widths of 16,18...32 bits. With Sony/
Philips, left/right alignment and Wordstrobe polarity,
there are additional parameters available for the adaption to a variety of formats in the MODUS register (see
page 23).
Synchronization is performed by means of an adaptive
sample rate converter, which interpolates sound signals with arbitrary input sample rates in the range of
5...50 kHz to 48 kHz data. The complete digital baseband processing is exclusively performed with 48 kHz.
The I2S_DA_IN2/3 pin is used in the PQFP80 package as a second synchronous interface data input.
The asynchronous data input of the PQFP80 is
I2S_DA_IN3. In the PLCC and PSDIP packages, the
I2S_DA_IN2/3 serves as an asynchronous data input.
MICRONAS INTERMETALL
13
MSP 3438G
PRELIMINARY DATA SHEET
2.8. ADR Bus Interface
2.11. Clock PLL Oscillator and Crystal Specifications
For the ASTRA Digital Radio System (ADR), the
MSP 3408G, MSP 3418G, and MSP 3458G 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 34x8G should be provided on a
feature connector:
The MSP 34x8G derives all internal system clocks
from the 18.432 MHz oscillator. In NICAM or in I2SSlave mode of the synchronous interface, the clock is
phase-locked to the corresponding source. Therefore,
it is not possible to use NICAM and I2S-Slave mode of
the synchronous interface at the same time.
– AUD_CL_OUT
– I2S_DA_IN1, 2, or 3
– I2S_DA_OUT, I2S_WS, I2S_CL
For proper performance, the MSP clock oscillator
requires a 18.432-MHz crystal. Note that for the
phase-locked modes (NICAM, I2S-Slave), crystals with
tighter tolerance are required. Please note also, that
the asynchronous I2S3 slave interface uses a different
locking mechanism and does not require tighter crystal
tolerances.
– ADR_CL, ADR_WS, ADR_DA
For more details, please refer to the DRP 3510A data
sheet.
2.9. Digital Control I/O Pins and
Status Change Indication
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 page 30). This enables the controlling of external
hardware switches or other devices via I2C-bus.
Remark on using the crystal:
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 3–8 on page 22).
The digital input/output pins can be set to high impedance by means of the MODUS register (see page 23).
In this mode, the pins can be used as input. The current state can be read out of the STATUS register (see
page 24).
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 (see STATUS register on page 24 and
MODUS register on page 23).
2.10. Preemphasis
When using the Aux output for feeding an external
modulator, a preemphasis can be applied to the right
channel.
The signal is scaled down by -3 dB. An overmodulation protection is included in the algorithm which limits
the output signal to 0 dBFS. Due to the nature of a preemphasis, its gain at high frequencies exceeds 3 dB.
Thus, even with 0 dB input signals and prescaler / volume set to 0 dB, clipping can occur.
There are three modes present: preemphasis off,
50 µs, and 75 µs. (see Table 3–10 on page 25) for the
register settings.
14
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
By means of the RESET bit in the CONTROL register,
the MSP can be reset by the controller.
3. Control Interface
3.1. I2C Bus Interface
Due to the internal architecture of the MSP 34x8G, the
IC cannot react immediately to an I2C request. The
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 3.1.2. The maximum
wait period of the MSP during normal operation mode
is less than 1 ms.
3.1.1. Device and Subaddresses
The MSP 34x8G is controlled via the I2C bus slave
interface.
The IC is selected by transmitting one of the
MSP 34x8G 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 34x8G responds to different device addresses. A
device address pair is defined as a write address (80,
84, or 88 hex) and a read address (81, 85, or 89 hex)
(see Table 3–1).
Hardware problem handling:
In case of any hardware problems (e.g. interruption of
the power supply of the MSP), the MSP’s wait period is
extended to 1.8 ms. After this time, the MSP does
NOT send the acknowledge bit after the device
address. The data line will be left HIGH by the MSP
and the clock line will be released. The master can
then generate a STOP condition to abort the transfer.
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 (81, 85, or 89 hex)
and reading two bytes of data. Refer to section 3.1.2.
for the I2C bus protocol and to section “Programming
Tips” on page 33 for proposals of MSP 34x8G I2C telegrams. See Table 3–2 for a list of available subaddresses.
The master is able to recognize the error state by the
missing acknowledge bit from the MSP. The MSP can
be reset via I2C-bus by means of the CONTROL register. While transmitting the reset protocol to ‘CONTROL’, the master must ignore the missing acknowledge bits (NAK) from the MSP.
A general timing diagram of the I2C Bus is shown in
Fig. 4–23 on page 56.
Table 3–1: I2C Bus Device Addresses
ADR_SEL
Low
High
Left Open
Mode
Write
Read
Write
Read
Write
Read
MSP device address
80 hex
81 hex
84 hex
85 hex
88 hex
89 hex
Table 3–2: I2C Bus Subaddresses
Name
Binary Value
Hex Value
Mode
Function
CONTROL
0000 0000
00
Write
software reset of MSP (see Table 3–3)
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 INTERMETALL
15
MSP 3438G
PRELIMINARY DATA SHEET
Table 3–3: Control Register (Subaddress: 00hex)
Name
Subaddress
15 (MSB)
14
13..1
0 (LSB)
CONTROL
00 hex
1 : RESET
0 : normal
0
0
0
3.1.2. 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
Note: S =
P=
ACK =
NAK =
Wait =
ACK sub-addr ACK data-byte ACK data-byte ACK 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.
1
0
I2C_DA
S
P
I2C_CL
Fig. 3–1: I2C bus protocol (MSB first; data must be stable while clock is high)
16
MICRONAS INTERMETALL
PRELIMINARY DATA SHEET
MSP 3438G
3.1.3. Proposals for General MSP 34x8G
I2C Telegrams
3.2. Start-Up Sequence:
Power-Up and I2C Controlling
3.1.3.1. Symbols
After POWER ON or RESET (see Fig. 4–22), the IC is
in an inactive state. All registers are in the reset position (see tables 3–4 and 3–5), the analog outputs are
muted. The controller has to initialize all registers for
which a non-default setting is necessary.
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
3.3. MSP 34x8G Programming Interface
3.3.1. User Registers Overview
3.1.3.2. 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
3.1.3.3. Read Telegrams
<daw 11 aa aa <dar dd dd> read data from demodulator
<daw 13 aa aa <dar dd dd> read data from DSP
3.1.3.4. 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 “Programming Tips” on page 33.
MICRONAS INTERMETALL
The MSP 34x8G 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).
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.
Unused parts of the 16-bit write registers must be zero.
Addresses not given in this table must not be written.
An overview of all MSP 34x8G Write Registers is
shown in Table 3–4; all Read Registers are given in
Table 3–5.
To provide more flexibility and for reasons of software
compatibility to the MSP 34x0D, an Expert/Compatibility Mode is available. Additional read and write registers, together with a detailed description of the expert
mode, can be found in the “Appendix B: Manual Mode”
on page 72.
17
MSP 3438G
PRELIMINARY DATA SHEET
Table 3–4: List of MSP 34x8G 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
21
MODUS
00 30
[15..0]
Demodulator, Automatic and I2S options
00 00
22
28
I2C
Subaddress = 12hex ; Registers are all
Volume loudspeaker channel
Volume Aux channel
readable by using I2C
00 00
00 06
Subaddress = 13hex
[15..8]
[+12 dB ... −114 dB, MUTE]
MUTE
[7..5]
[4..0]
1/8 dB Steps
must be set to 0
000bin
00000bin
[15..8]
[+12 dB ... −114 dB, MUTE]
MUTE
[7..5]
[4..0]
1/8 dB Steps
must be set to 0
000bin
00000bin
28
Volume SCART1 output channel
00 07
[15..8]
[+12 dB ... −114 dB, MUTE]
MUTE
29
Loudspeaker source select
00 08
[15..8]
[FM/AM, NICAM, SCART, I2S1..3, Mix output]
FM/AM
27
[7..0]
[SOUNDA, SOUNDB, STEREO, MONO]
SOUNDA
27
[15..8]
[FM/AM, NICAM, SCART, I2S1..3, Mix output]
FM/AM
27
[7..0]
[SOUNDA, SOUNDB, STEREO, MONO]
SOUNDA
27
Loudspeaker channel matrix
Aux source select
00 09
Aux channel matrix
SCART1 source select
00 0A
SCART1 channel matrix
I 2S
source select
00 0B
I2S channel matrix
Quasi-peak detector source select
00 0C
Quasi-peak detector matrix
2
[15..8]
[FM/AM, NICAM, SCART, I S1..3, Mix output]
FM/AM
27
[7..0]
[SOUNDA, SOUNDB, STEREO, MONO]
SOUNDA
27
FM/AM
27
I2S1..3,
[15..8]
[FM/AM, NICAM, SCART,
Mix output]
[7..0]
[SOUNDA, SOUNDB, STEREO, MONO]
SOUNDA
27
[15..8]
[FM/AM, NICAM, SCART, I2S1..3, Mix output]
FM/AM
27
[7..0]
[SOUNDA, SOUNDB, STEREO, MONO]
SOUNDA
27
Prescale SCART input
00 0D
[15..8]
[00hex ... 7Fhex]
00hex
26
Prescale FM/AM
00 0E
[15..8]
[00hex ... 7Fhex]
00hex
25
[7..0]
[NO_MAT, GSTEREO, KSTEREO]
NO_MAT
26
00 10
[15..8]
[00hex ... 7Fhex]
00hex
26
Prescale I S3
00 11
[15..8]
[00hex ... 7Fhex]
10hex
26
Prescale I2S2
00 12
[15..8]
[00hex ... 7Fhex]
10hex
26
ACB: SCART Switches a. D_CTR_I/O
00 13
[15..0]
Bits [15..0]
00hex
30
Beeper
00 14
[15..0]
[00hex ... 7Fhex]/[00hex ... 7Fhex]
00/00hex
31
Prescale I2S1
00 16
[15..8]
[00hex ... 7Fhex]
10hex
26
Automatic Volume Correction
00 29
[15..8]
[off, on, decay time]
off
28
Aux Preemphasis on right channel
00 34
[15..8]
[OFF, 50µs, 75µs]
OFF
28
Mix1 source select
00 38
[15..8]
[FM/AM, NICAM, SCART, I2S1..3, Mix output]
FM/AM
27
[7..0]
[SOUNDA, SOUNDB, STEREO, MONO]
SOUNDA
27
[15..8]
[FM/AM, NICAM, SCART, I2S1..3, Mix output]
FM/AM
27
[7..0]
[SOUNDA, SOUNDB, STEREO, MONO]
SOUNDA
27
FM matrix
Prescale NICAM
2
Mix1 channel matrix
Mix2 source select
00 39
Mix2 channel matrix
Scale Mix1
00 3A
[15..8]
[00hex ... 7Fhex]
00hex
31
Scale Mix2
00 3B
[15..8]
[00hex ... 7Fhex]
00hex
31
18
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
Table 3–4: List of MSP 34x8G Write Registers, continued
Write Register
Address
(hex)
Bits
Description and Adjustable Range
Reset
See
Page
Volume SCART2 output channel
00 40
[15..8]
[+12 dB ... −114 dB, MUTE]
00hex
29
SCART2 source select
00 41
SCART2 channel matrix
2
[15..8]
[FM/AM, NICAM, SCART, I S1..3, Mix output]
FM
27
[7..0]
[SOUNDA, SOUNDB, STEREO, MONO]
SOUNDA
27
Table 3–5: List of MSP 34x8G 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 (see Table 3–7)
24
STATUS
02 00
[15..0]
Monitoring of settings e.g. Stereo, Mono, Mute, D_CTR_I/O etc. .
24
I2C Subaddress = 13hex ; Registers are not writable
Quasi peak readout left
00 19
[15..0]
[00hex ... 7FFFhex]16 bit two’s complement
31
Quasi peak readout right
00 1A
[15..0]
[00hex ... 7FFFhex]16 bit two’s complement
31
MSP hardware version code
00 1E
[15..8]
[00hex ... FFhex]
32
[7..0]
[00hex ... FFhex]
32
[15..8]
[00hex ... FFhex]
32
[7..0]
[00hex ... FFhex]
32
MSP major revision code
MSP product code
MSP ROM version code
MICRONAS INTERMETALL
00 1F
19
MSP 3438G
PRELIMINARY DATA SHEET
3.3.2. Description of User Registers
Table 3–6: Standard Codes for STANDARD SELECT register
MSP Standard
Code
(Data in hex)
TV Sound Standard
Sound Carrier
Frequencies in
MHz
MSP 34x8G
Version
Automatic Standard Detection
00 01
Start Automatic Standard Detection
all
Standard Selection
00 02
M-Dual FM-Stereo
4.5/4.724212
3408, 3418, 3448,
3458
00 03
B/G -Dual FM-Stereo1)
5.5/5.7421875
3408, 3418, 3458
00 04
D/K1-Dual FM-Stereo2)
6.5/6.2578125
00 05
D/K2-Dual FM-Stereo2)
6.5/6.7421875
00 06
D/K -FM-Mono with HDEV33), not detectable by
Automatic Standard Detection, for China
HDEV33) SAT-Mono (i.e. Eutelsat, s. Table 6–11)
6.5
00 07
D/K3-Dual FM-Stereo
6.5/5.7421875
3408, 3418, 3458
00 08
B/G -NICAM-FM1)
5.5/5.85
3418, 3458
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
3418, 3458
00 20
M-BTSC-Stereo
4.5
3438, 3448, 3458
00 21
M-BTSC-Mono + SAP
00 30
M-EIA-J Japan Stereo
4.5
3448, 3458
00 40
FM-Stereo Radio
10.7
3438, 3448, 3458
00 50
SAT-Mono (s. Table 6–11)
6.5
3408, 3418, 3458
00 51
SAT-Stereo (s. Table 6–11)
7.02/7.20
3408, 3418, 3458
00 60
SAT ADR (Astra Digital Radio)
7.2
3408, 3418, 3458
1)
2)
3)
4)
20
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 and Bhex are equivalent.
HDEV3: Max. FM deviation must not exceed 540 kHz
HDEV2: Max. FM deviation must not exceed 360 kHz
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
3.3.2.1. STANDARD SELECT Register
The TV sound standard of the MSP 34x8G demodulator is determined by the STANDARD SELECT Register. There are two ways to use the STANDARD
SELECT Register:
– 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.
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 impossible for a specific
MSP version, it detects and switches to the analog
mono sound of this standard.
Example:
The MSPs 3438G and 3448G will detect a B/G-NICAM
signal as standard 3 and will switch to the analog FMMono sound.
Table 3–7: Results of the Automatic Standard
Detection
The Standard Codes are listed in Table 3–6.
Selecting a TV sound standard via the STANDARD
SELECT register initializes the demodulator. This
includes: AGC, tuning frequency, band-pass filters,
demodulation mode (FM, AM, or NICAM), carrier
mute, deemphasis, and identification mode.
If a present sound standard is impossible for a specific
MSP version, it switches to the analog mono sound of
this 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 following
transmissions are necessary: MODUS register, STANDARD SELECT register, prescale values, FM matrix.
Note: The FM matrix is set automatically if Automatic
Sound Select is active (MODUS[0]=1). In this case, the
FM matrix will be initialized with “Sound A Mono”. During operation, the FM matrix will be automatically
selected according to the actual identification information.
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)
3.3.2.2. STANDARD RESULT Register
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 3–7.
Automatic Standard
Detection still active
>07FFhex
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).
MICRONAS INTERMETALL
21
MSP 3438G
PRELIMINARY DATA SHEET
3.3.2.3. Write Registers on I2C Subaddress 10hex
Table 3–8: Write Registers on I2C Subaddress 10hex
Register
Address
Function
Name
STANDARD SELECTION
00 20hex
STANDARD SELECTION Register
STANDARD_SEL
Defines TV Sound or FM-Radio Standard
bit [15:0] 00 01hex
00 02hex
...
00 60hex
22
start Automatic Standard Detection
Standard Codes (see Table 3–6))
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
Table 3–8: Write Registers on I2C Subaddress 10hex, continued
Register
Address
Function
Name
MODUS Register
MODUS
MODUS
00 30hex
General MSP 34x8G Options
bit [0]
0/1
off/on: Automatic Sound Select
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 [2]
0
undefined, must be 0
bit [3]
0
1
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 [4]
0/1
active/tristate state of I2S output pins
bit [5]
0/1
master/slave mode of I2S interface (must be set to 0
(= Master) in case of NICAM mode)
bit [6]
0/1
Sony/Philips format of I2S word strobe I2S_WS (synchronous I2S)
bit [7]
0/1
active/tristate state of audio clock output pin
AUD_CL_OUT
bit [8]
0/1
ANA_IN_1+/ANA_IN_2+;
select analog sound IF input pin
bit [9]
0/1
Sony/Philips format of I2S word strobe I2S_WS3
(affects asynchronous I2S). Must be 0 for right aligned
data ([11]=1)
bit [10]
0/1
WS=0: left, WS=1: right / WS=0: right, WS=1: left
Word strobe polarity (affects asynchronous I2S only)
bit [11]
0/1
left aligned (16, 18...32 bit)/right aligned (16 bit) data
(affects asynchronous I2S only)
Preference in Automatic Standard Detection:
0
1
detected 6.5 MHz carrier is interpreted as:1)
standard L (SECAM)
standard D/K1, D/K2, or D/K NICAM
0
1
2
3
detected 4.5 MHz carrier is interpreted as:1)
standard M (Korea)
standard M (BTSC)
standard M (Japan)
Carrier at 4.5 MHz is ignored (chroma carrier)
0
undefined, must be 0
bit [12]
bit [14:13]
bit [15]
1)
Valid at the next start of Automatic Standard Detection.
MICRONAS INTERMETALL
23
MSP 3438G
PRELIMINARY DATA SHEET
3.3.2.4. Read Registers on I2C Subaddress 11hex
Table 3–9: Read Registers on I2C Subaddress 11hex
Register
Address
Function
Name
STANDARD RESULT
00 7Ehex
STANDARD_RES
STANDARD RESULT Register
Readback of the detected TV Sound or FM-Radio Standard
bit [15:0] 00 00hex
Automatic Standard Detection could not find
a sound standard
MSP Standard Codes (see Table 3–7)
00 02hex
...
00 40hex
>07 FFhex Automatic Standard Detection still active
STATUS
02 00hex
STATUS Register
STATUS
Contains all user relevant internal information about the status of the MSP
bit [0]
undefined
bit [1]
0
1
detected primary carrier (Mono or MPX carrier)
no primary carrier detected
bit [2]
0
1
detected secondary carrier (2nd A2 or SAP carrier)
no secondary carrier detected
bit [3]
0/1
low/high level of digital I/O pin D_CTR_I/O_0
bit [4]
0/1
low/high level of digital I/O pin D_CTR_I/O_1
bit [5,9]
00
01
10
analog sound standard (FM or AM) active
not obtainable
digital sound (NICAM) available (MSP 3418G and
MSP 3458G only)
bad reception condition of digital sound (NICAM) due to:
a. high error rate
b. unimplemented sound code
c. data transmission only
11
bit [6]
0/1
mono/stereo indication
bit [7]
0/1
“1” indicates independent mono sound
(only for NICAM on MSP 3418G and MSP 3458G)
bit [8]
0/1
“1” indicates bilingual sound mode or SAP present
bit [15:10]
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.
24
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
3.3.2.5. Write Registers on I2C Subaddress 12hex
Table 3–10: Write Registers on I2C Subaddress 12hex
Register
Address
Function
Name
PREPROCESSING
00 0Ehex
PRE_FM
FM/AM Prescale
bit [15:8] 00hex...7Fhex Defines the input prescale gain for the demodulated
FM or AM signal
00hex
off (RESET condition)
For all FM modes except satellite FM, the below combinations of prescale value
and FM deviation 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)
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 switched on, the AM-output level
remains stable and independent of the actual SIF-level in
the mentioned input range)
MICRONAS INTERMETALL
25
MSP 3438G
PRELIMINARY DATA SHEET
Table 3–10: 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 (i.e. SAP)
In case of Automatic Sound Select, the FM Matrix Mode is set automatically,
i.e. the low-part of any I2C transmission to the register 00 0Ehex is ignored.
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
00 11hex
off
0 dB gain
9 dB gain (recommendation)
+12 dB gain (maximum gain)
PRE_I2S1
PRE_I2S2
PRE_I2S3
I2S1 Prescale
I2S2 Prescale
I2S3 Prescale
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
00 0Dhex
PRE_SCART
SCART Input Prescale
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
+14 dB gain (400 mVRMS input leads to digital full scale)
7Fhex
26
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
Table 3–10: Write Registers on I2C Subaddress 12hex, continued
Register
Address
Function
Name
SOURCE SELECT AND OUTPUT CHANNEL MATRIX
00 08hex
00 09hex
00 0Ahex
00 41hex
00 0Bhex
00 0Chex
00 38hex
00 39hex
Source for:
Loudspeaker Output
Aux Output
SCART1 DA Output
SCART2 DA Output
I2S Output
Quasi-Peak Detector
Mix1 input
Mix2 input
bit [15:8] 0
SRC_MAIN
SRC_AUX
SRC_SCART1
SRC_SCART2
SRC_I2S
SRC_QPEAK
SRC_MIX1
SRC_MIX2
“FM/AM”: demodulated FM or AM mono signal
1
“Stereo or A/B”: demodulator Stereo or A/B signal
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
7
I2S3 input
15
Mix output
For demodulator sources, see Table 2–2.
00 08hex
00 09hex
00 0Ahex
00 41hex
00 0Bhex
00 0Chex
00 38hex
00 39hex
Matrix Mode for:
Loudspeaker Output
Aux Output
SCART1 DA Output
SCART2 DA Output
I2S Output
Quasi-Peak Detector
Mix1 input
Mix2 input
bit [7:0]
00hex
10hex
20hex
30hex
MAT_MAIN
MAT_AUX
MAT_SCART1
MAT_SCART2
MAT_I2S
MAT_QPEAK
MAT_MIX1
MAT_MIX2
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)
More modes are listed in section 6.5.1.
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).
MICRONAS INTERMETALL
27
MSP 3438G
PRELIMINARY DATA SHEET
Table 3–10: Write Registers on I2C Subaddress 12hex, continued
Register
Address
Function
Name
LOUDSPEAKER AND AUX PROCESSING
00 00hex
00 06hex
VOL_MAIN
VOL_AUX
Volume Loudspeaker
Volume Aux
bit [15:8] volume table with 1 dB step size
+12 dB (maximum volume)
7Fhex
+11 dB
7Ehex
...
+1 dB
74hex
0 dB
73hex
−1 dB
72hex
...
−113 dB
02hex
−114 dB
01hex
Mute (reset condition)
00hex
Fast Mute (needs about 75ms until the signal is comFFhex
pletely 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]
not used
must be set to 0
With large scale input signals, positive volume settings may lead to signal clipping.
The MSP 34x8G loudspeaker and aux 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.
00 29hex
AVC
Automatic Volume Correction (AVC) Loudspeaker Channel
bit [15:12] 00hex
08hex
AVC off (and reset internal variables)
AVC on
bit [11:8]
8 sec decay time
4 sec decay time
2 sec decay time
20 ms decay time (intended for quick adaptation to the
average volume level after channel change)
08hex
04hex
02hex
01hex
Note: To reset the internal variables, the AVC should be switched off and then
on again during any channel or source change. For standard applications, the
recommended decay time is 4 sec.
Note: AVC should not be used in any Dolby Prologic mode.
00 34hex
Preemphasis Aux Channel
bit [15:8] 00hex
7Fhex
FFhex
28
PREEMP_AUX
Preemphasis OFF
Preemphasis 50 µ (−3 dB scaling)
Preemphasis 75 µ (−3 dB scaling)
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
Table 3–10: Write Registers on I2C Subaddress 12hex, continued
Register
Address
Function
Name
SCART OUTPUT CHANNEL
00 07hex
00 40hex
Volume SCART1 Output Channel
Volume SCART2 Output Channel
VOL_SCART1
VOL_SCART2
bit [15:8] volume table with 1 dB step size
+12 dB (maximum volume)
7Fhex
+11 dB
7Ehex
...
+1 dB
74hex
0 dB
73hex
−1 dB
72hex
...
−113 dB
02hex
−114 dB
01hex
Mute (reset condition)
00hex
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
MICRONAS INTERMETALL
this must be 01hex
29
MSP 3438G
PRELIMINARY DATA SHEET
Table 3–10: 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
xxxx00 xx0 SCART1 to DSP input (RESET position)
xxxx01 xx0 MONO to DSP input (Sound A Mono must be selected in
the channel matrix mode for the corresponding output
channels)
xxxx10 xx0 SCART2 to DSP input
xxxx11 xx0 SCART3 to DSP input
xxxx00 xx1 SCART4 to DSP input
xxxx11 xx1 mute DSP input
bit [13:5] SCART1 Output Select
xx00xx x0x SCART3 input to SCART1 output (RESET position)
xx01xx x0x SCART2 input to SCART1 output
xx10xx x0x MONO input to SCART1 output
xx11xx x0x SCART1 DA to SCART1 output
xx00xx x1x SCART2 DA to SCART1 output
xx01xx x1x SCART1 input to SCART1 output
xx10xx x1x SCART4 input to SCART1 output
xx11xx x1x mute SCART1 output
bit [13:5] SCART2 Output Select
00xxxx 0xx SCART1 DA to SCART2 output (RESET position)
01xxxx 0xx SCART1 input to SCART2 output
10xxxx 0xx MONO input to SCART2 output
00xxxx 1xx SCART2 DA to SCART2 output
01xxxx 1xx SCART2 input to SCART2 output
10xxxx 1xx SCART3 input to SCART2 output
11xxxx 1xx SCART4 input to SCART2 output
11xxxx 0xx 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.
30
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
Table 3–10: Write Registers on I2C Subaddress 12hex, continued
Register
Address
Function
Name
MIXING UNIT
00 3Ahex
00 3Bhex
VOL_MIX1
VOL_MIX2
Scale MIX1
Scale MIX2
Defines the input scale value for the digital mixing unit
bit [15:8] 00hex
20hex
40hex
7Fhex
off
50% (-6 dB gain)
100% (0 dB gain)
200% (+6 dB gain = maximum gain)
Note: If the sum of both mixing inputs exceeds 100%, clipping may occur in the
successive processing.
BEEPER
00 14hex
Beeper Volume and Frequency
BEEPER
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
3.3.2.6. Read Registers on I2C Subaddress 13hex
Table 3–11: 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
QPEAK_L
QPEAK_R
bit [15..0] 0hex... 7FFFhex values are 16 bit two’s complement (only positive)
MICRONAS INTERMETALL
31
MSP 3438G
PRELIMINARY DATA SHEET
Table 3–11: Read Registers on I2C Subaddress 13hex, continued
Register
Address
Function
Name
ABC 1111A VERSION READOUT Registers
00 1Ehex
MSP_HARD
MSP Hardware Version Code
bit [15..8] 01hex
MSP 34x8G - A2
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_REVISION
MSP Major Revision Code
bit [7..0]
00 1Fhex
07hex
MSP 34x8G - A2
MSP_PRODUCT
MSP Product Code
bit [15..8] 08hex
12hex
26hex
30hex
3Ahex
MSP 3408G - A2
MSP 3418G - A2
MSP 3438G - A2
MSP 3448G - A2
MSP 3458G - A2
By means of the MSP-Product Code, the control processor is able to decide
which TV sound standards have to be considered.
MSP_ROM
MSP ROM Version Code
bit [7..0]
42hex
MSP 34x8G - A2
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 34x8G 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.
32
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
3.4. Programming Tips
3.5. Examples of Minimum Initialization Codes
This section describes the preferred method for initializing the MSP 34x8G. The initialization is grouped into
four sections: analog signal path, demodulator input,
input processing for SCART and I2S, and output processing. See Fig. 2–1 on page 8 for a complete signal
flow.
Initialization of the MSP 34x8G according to these listings reproduces sound of the selected standard on the
loudspeaker output. All numbers are hexadecimal. The
examples have the following structure:
1. Perform an I2C controlled reset of the IC.
2. Write MODUS register
(with Automatic Sound Select).
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.
Demodulator Input
For a complete setup of the sound processing from
analog IF input to the source selection, the following
steps must be performed:
1. Set MODUS register to the preferred mode and
Sound IF input.
2. Write STANDARD SELECT register.
3. Choose preferred prescale (FM and NICAM) values.
If Automatic Sound Select is not active, the following
step has to be done repeatedly:
4. Choose FM matrix according to the sound mode
indicated in the STATUS register.
3. Write STANDARD SELECT register.
4. Set Prescale
(FM and/or NICAM and dummy FM matrix).
5. Set Source Selection for loudspeaker channel
(with matrix set to STEREO).
6. Set Volume loudspeaker channel to 0 dB.
3.5.1. B/G-FM (A2 or NICAM)
<80 00 80 00>
// Softreset
<80 00 00 00>
<80 10 00 30 20 03>
// MODUS-Register: Automatic = on
<80 10 00 20 00 03>
or
<80 10 00 20 00 08>
// Standard Select: A2 B/G or NICAM B/G
<80 12 00 0E 24 03>
// FM/AM-Prescale = 24hex,
FM-Matrix = MONO/SOUNDA
<80 12 00 10 00 5A>
<80 12 00 08 03 20>
// NICAM-Prescale = 5Ahex
// Source Sel. = (St or A) & Ch. Matr. = St
<80 12 00 00 73 00>
// Loudspeaker Volume 0 dB
3.5.2. BTSC-Stereo
<80 00 80 00>
// Softreset
<80 00 00 00>
SCART and I2S Inputs
1. Select preferred prescale for SCART.
2. Select preferred prescale for I2S inputs
(set to 0 dB after RESET).
<80 10 00 30 20 03>
// MODUS-Register: Automatic = on
<80 10 00 20 00 20>
// Standard Select: BTSC-STEREO
<80 12 00 0E 24 03>
// FM/AM-Prescale = 24hex,
FM-Matrix = Sound A Mono
<80 12 00 08 03 20>
// Source Sel. = (St or A) & Ch. Matr. = St
<80 12 00 00 73 00>
// Loudspeaker Volume 0 dB
Output Channels
1. Select the source channel and matrix for each output channel.
2. Set audio baseband features (i.e. AVC, 75 µs preemphasis)
3. Select volume for each output channel.
MICRONAS INTERMETALL
3.5.3. BTSC-SAP with SAP at Loudspeaker Channel
<80 00 80 00>
// Softreset
<80 00 00 00>
<80 10 00 30 20 03>
// MODUS-Register: Automatic = on
<80 10 00 20 00 21>
// Standard Select: BTSC-SAP
<80 12 00 0E 24 03>
// FM/AM-Prescale = 24hex,
FM-Matrix = Sound A Mono
<80 12 00 08 04 20>
// Source Sel. = (St or B) & Ch. Matr. = St
<80 12 00 00 73 00>
// Loudspeaker Volume 0 dB
33
MSP 3438G
PRELIMINARY DATA SHEET
3.5.4. FM-Stereo Radio
<80 00 80 00>
// Softreset
<80 00 00 00>
<80 10 00 30 20 03>
// MODUS-Register: Automatic = on
<80 10 00 20 00 40>
// Standard Select: FM-STEREO
<80 12 00 0E 24 03>
// FM/AM-Prescale = 24hex,
FM-Matrix = Sound A Mono
<80 12 00 08 03 20>
// Source Sel. = (St or A) & Ch. Matr. = St
<80 12 00 00 73 00>
// Loudspeaker Volume 0 dB
3.5.5. Automatic Standard Detection
<80 00 80 00>
// Softreset
<80 00 00 00>
<80 10 00 30 20 03>
// MODUS-Register: Automatic = on
<80 10 00 20 00 01>
// Standard Select:
Automatic Standard Detection
<80 12 00 0E 24 03>
// FM/AM-Prescale = 24hex,
FM-Matrix = Sound A Mono
<80 12 00 10 00 5A>
// NICAM-Prescale = 5Ahex
// Source Sel. = (St or A) & Ch. Matr. = St
<80 12 00 08 03 20>
// Wait till STANDARD RESULT contains a value ≤ 07FF
// IF STANDARD RESULT contains 0000
// do some error handling
// ELSE
<80 12 00 00 73 00>
// Loudspeaker Volume 0 dB
3.5.6. Software Flow for Interrupt driven STATUS
Check
If the D_CTR_I/O_1 pin of the MSP 34x8G 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 34x8G. The interrupt handler may adjust the TV
display according to the new status information.
Interrupt Handler:
<80 11 02 00 <81 dd dd> // Read STATUS
// adjust TV display with given status information
// Return from Interrupt
34
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
4. Specifications
4.1. Outline Dimensions
23 x 0.8 = 18.4
0.8
0.17 ±0.03
64
41
14
17.2
8
1.8
10.3
9.8
5
16
80
0.8
8
1.8
15 x 0.8 = 12.0
40
65
25
1
1.28
24
2.70
23.2
3 ±0.2
20
0.1
SPGS0025-1/1E
Fig. 4–1:
80-Pin Plastic Quad Flat Pack
(PQFP80)
Weight approximately 1.61 g
Dimensions in mm
15 x 0.5 = 7.5
0.5
0.145
32
64
17
1.75
1
10
12
0.22
49
15 x 0.5 = 7.5
33
0.5
48
16
1.4
1.75
12
1.5
0.1
10
D0025/2E
Fig. 4–2:
64-Pin Plastic Low-Profile Quad Flat Pack
(PLQFP64)
Weight approximately 0.35 g
Dimensions in mm
MICRONAS INTERMETALL
35
MSP 3438G
PRELIMINARY DATA SHEET
1.27
1.2 x 45°
61
10
0.48
60
2
2
7.5
24.2
23.3
25.14
0.71
9
7.5
26
0.23
9
44
27
16 x 1.27 = 20.32
1
1.27
9
16 x 1.27 = 20.32
0.9
1.1 x 45 °
1.9
43
4.05
25.14
4.75
0.1
24.2
SPGS0027-2/1E
Fig. 4–3:
68-Pin Plastic Leaded Chip Carrier Package
(PLCC68)
Weight approximately 4.8 g
Dimensions in mm
SPGS0016-4/3E
33
1
32
3.8 ±0.1
3
2.5
64
0.457
0.3
0.3
0.27 ±0.06
1 ±0.1
1.778 ±0.05
1.29
19.3 ±0.1
18 ±0.1
4.8 ±0.4
3.2 ±0.4
1.9
(1)
57.7 ±0.1
20.1 ±0.5
31 x 1.778 = 55.118 ±0.1
Fig. 4–4:
64-Pin Plastic Shrink Dual-Inline Package
(PSDIP64)
Weight approximately 9.0 g
Dimensions in mm
36
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
4.2. Pin Connections and Short Descriptions
NC = not connected (leave vacant for future compatibility reasons)
TP = Test Pin (leave vacant - pin is used for production test only)
LV = leave vacant
OBL = obligatory; connect as described in application circuit diagram
Pin No.
Pin Name
Type
Connection
Short Description
(if not used)
PQFP
80-pin
PLQFP
64-pin
PLCC
68-pin
PSDIP
64-pin
1
64
10
8
NC
2
1
9
9
I2C_CL
3
2
8
10
4
3
7
5
4
6
LV
Not connected
IN/OUT
OBL
I2C clock
I2C_DA
IN/OUT
OBL
I2C data
11
I2S_CL
IN/OUT
LV
I2S clock
6
12
I2S_WS
IN/OUT
LV
I2S word strobe
5
5
13
I2S_DA_OUT
OUT
LV
I2S data output
7
6
4
14
I2S_DA_IN1
IN
LV
I2S1 data input
8
7
3
15
ADR_DA
OUT
LV
ADR data output
−
−
2
−
NC
LV
Not connected
9
8
1
16
ADR_WS
OUT
LV
ADR word strobe
10
9
68
17
ADR_CL
OUT
LV
ADR clock
11
−
−
−
DVSUP
OBL
Digital power supply +5 V
12
−
−
−
DVSUP
OBL
Digital power supply +5 V
13
10
67
18
DVSUP
OBL
Digital power supply +5 V
14
−
−
−
DVSS
OBL
Digital ground
15
−
−
−
DVSS
OBL
Digital ground
16
11
66
19
DVSS
OBL
Digital ground
−
12
65
20
I2S_DA_IN2/3
IN
LV
I2S2/3-data input
17
−
−
−
I2S_DA_IN2
IN
LV
PQFP80: pin 22 separate
I2S_DA_IN3
18
13
64
21
NC
LV
Not connected
19
14
63
22
I2S_CL3
IN
LV
I2S3 clock
20
15
62
23
I2S_WS3
IN
LV
I2S3 word strobe
21
16
61
24
RESETQ
IN
OBL
Power-on-reset
22
−
−
−
I2S_DA_IN3
IN
LV
I2S3-data input
23
−
−
−
NC
LV
Not connected
24
17
60
25
DACA_R
LV
Aux out, right
MICRONAS INTERMETALL
OUT
37
MSP 3438G
PRELIMINARY DATA SHEET
Pin No.
Pin Name
Type
Connection
Short Description
(if not used)
PQFP
80-pin
PLQFP
64-pin
PLCC
68-pin
PSDIP
64-pin
25
18
59
26
DACA_L
26
19
58
27
VREF2
27
20
57
28
DACM_R
28
21
56
29
DACM_L
29
22
55
30
30
23
54
31
24
32
LV
Aux out, left
OBL
Reference ground 2
OUT
LV
Loudspeaker out, right
OUT
LV
Loudspeaker out, left
NC
LV
Not connected
31
NC
LV
Not connected
53
32
NC
LV
Not connected
−
52
−
NC
LV
Not connected
33
25
51
33
SC2_OUT_R
OUT
LV
SCART output 2, right
34
26
50
34
SC2_OUT_L
OUT
LV
SCART output 2, left
35
27
49
35
VREF1
OBL
Reference ground 1
36
28
48
36
SC1_OUT_R
OUT
LV
SCART output 1, right
37
29
47
37
SC1_OUT_L
OUT
LV
SCART output 1, left
38
30
46
38
CAPL_A
OBL
Volume capacitor AUX
39
31
45
39
AHVSUP
OBL
Analog power supply 8.0 V
40
32
44
40
CAPL_M
OBL
Volume capacitor MAIN
41
−
−
−
NC
LV
Not connected
42
−
−
−
NC
LV
Not connected
43
−
−
−
AHVSS
OBL
Analog ground
44
33
43
41
AHVSS
OBL
Analog ground
45
34
42
42
AGNDC
OBL
Analog reference voltage
46
−
41
−
NC
LV
Not connected
47
35
40
43
SC4_IN_L
IN
LV
SCART 4 input, left
48
36
39
44
SC4_IN_R
IN
LV
SCART 4 input, right
49
37
38
45
ASG
AHVSS
Analog Shield Ground
50
38
37
46
SC3_IN_L
IN
LV
SCART 3 input, left
51
39
36
47
SC3_IN_R
IN
LV
SCART 3 input, right
52
40
35
48
ASG
AHVSS
Analog Shield Ground
53
41
34
49
SC2_IN_L
IN
LV
SCART 2 input, left
54
42
33
50
SC2_IN_R
IN
LV
SCART 2 input, right
55
43
32
51
ASG
AHVSS
Analog Shield Ground
38
OUT
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
Pin No.
Pin Name
Type
Connection
Short Description
(if not used)
PQFP
80-pin
PLQFP
64-pin
PLCC
68-pin
PSDIP
64-pin
56
44
31
52
SC1_IN_L
IN
LV
SCART 1 input, left
57
45
30
53
SC1_IN_R
IN
LV
SCART 1 input, right
58
46
29
54
VREFTOP
OBL
Reference voltage IF A/D
converter
59
−
−
−
NC
LV
Not connected
60
47
28
55
MONO_IN
LV
Mono input
61
−
−
−
AVSS
OBL
Analog ground
62
48
27
56
AVSS
OBL
Analog ground
63
−
−
−
NC
LV
Not connected
64
−
−
−
NC
LV
Not connected
65
−
−
−
AVSUP
OBL
Analog power supply +5 V
66
49
26
57
AVSUP
OBL
Analog power supply +5 V
67
50
25
58
ANA_IN1+
IN
LV
IF input 1
68
51
24
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
23
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
22
61
TESTEN
IN
AVSS
Test pin
71
54
21
62
XTAL_IN
IN
OBL
Crystal oscillator
72
55
20
63
XTAL_OUT
OUT
OBL / LV
Crystal oscillator (See also
IN
4.3. Pin descriptions)
73
56
19
64
TP
LV
Test pin
74
57
18
1
AUD_CL_OUT
LV
Audio clock output
(18.432 MHz)
−
−
17
−
NC
LV
Not connected
75
58
16
2
NC
LV
Not connected
76
59
15
3
NC
LV
Not connected
77
60
14
4
D_CTR_I/O_1
IN/OUT
LV
D_CTR_I/O_1
78
61
13
5
D_CTR_I/O_0
IN/OUT
LV
D_CTR_I/O_0
79
62
12
6
ADR_SEL
IN
OBL
I2C Bus address select
80
63
11
7
STANDBYQ
IN
OBL
Stand-by (low-active)
MICRONAS INTERMETALL
OUT
39
MSP 3438G
PRELIMINARY DATA SHEET
4.3. Pin Descriptions
Pin 1, NC – Pin not connected.
Pins 19, I2S_CL3 – I2S Clock Input (Fig. 4–11)
Clock line for the I2S bus. Since only a slave mode is
available an external I2S clock has to be supplied.
Pin 2, I2C_CL – I2C Clock Input/Output (Fig. 4–10)
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.
Pins 20, I2S_WS3 – I2S Word Strobe Input (Fig. 4–11)
Word strobe line for the I2S bus. Since only a slave
mode is available an external I2S word strobe has to
be supplied.
Pin 3, I2C_DA – I2C Data Input/Output (Fig. 4–10)
Via this pin, the I2C-bus data is written to or read from
the MSP.
Pin 21, RESETQ – Reset Input (Fig. 4–11)
In the steady state, high level is required. A low level
resets the MSP 34x8G.
Pin 4, I2S_CL – I2S Clock Input/Output (Fig. 4–13)
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 22, I2S_DA_IN3 – I2S Data Input 3 (Fig. 4–11)
Asynchronous input of digital serial sound data to the
MSP via the I2S bus.
Pin numbers refer to the 80-pin PQFP package.
Pin 5, I2S_WS – I2S Word Strobe Input/Output
(Fig. 4–13)
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.
Pin 6, I2S_DA_OUT1 – I2S Data Output (Fig. 4–9)
Output of digital serial sound data of the MSP on the
I2S bus.
Pin 7, I2S_DA_IN1 – I2S Data Input 1 (Fig. 4–11)
First input of digital serial sound data to the MSP via
the I2S bus.
Pin 8, ADR_DA – ADR Bus Data Output (Fig. 4–9)
Output of digital serial data to the DRP 3510A via the
ADR bus.
Pin 9, ADR_WS – ADR Bus Word Strobe Output
(Fig. 4–9)
Word strobe output for the ADR bus.
Pin 10, ADR_CL – ADR Bus Clock Output (Fig. 4–9)
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. 4–11)
Second input of digital serial sound data to the MSP
via the I2S bus. In all packages except PQFP-80-pin
this pin is also connected to the asynchronous I2S
interface 3.
Pins 18, NC – Pin not connected.
40
Pins 23, NC – Pin not connected.
Pins 24, 25, DACA_R/L – Aux Outputs (Fig. 4–19)
Output of the aux signal. A 1 nF capacitor to AHVSS
must be connected to these pins. The DC offset on
these pins depends on the selected aux volume.
Pin 26, VREF2 – Reference Ground 2
Reference analog ground. This pin must be connected
separately to the ground (AHVSS). VREF2 serves as a
clean ground and should be used as the reference for
analog connections to the loudspeaker and headphone outputs.
Pins 27, 28, DACM_R/L – Loudspeaker Outputs
(Fig. 4–19)
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 29, 30, 31, 32 NC – Pin not connected.
Pins 33, 34, SC2_OUT_R/L – SCART2 Outputs
(Fig. 4–21)
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 ground (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. 4–21)
Output of the SCART1 signal. Connections to these
pins must use a 100-Ω series resistor and are intended
to be AC-coupled.
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
Pin 38, CAPLA – Volume Capacitor Aux (Fig. 4–16)
A 10-µF capacitor to AHVSUP must be connected to
this pin. It serves as a smoothing filter for aux 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.
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. (+5 V-operation is possible with
restrictions in performance)
Pin 40, CAPLM – Volume Capacitor Loudspeakers
(Fig. 4–16)
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* – 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. 4–18)
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. 4–18)
The analog input signal for SCART3 is fed to this pin.
Analog input connection must be AC-coupled.
Pins 53, 54 SC2_IN_L/R – SCART2 Inputs (Fig. 4–18)
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.
Pins 56, 57 SC1_IN_L/R – SCART1 Inputs (Fig. 4–18)
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. 4–15)
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.
Pin 59, NC – Pin not connected.
Pin 60 MONO_IN – Mono Input (Fig. 4–18)
The analog mono input signal is fed to this pin. Analog
input connection must be AC-coupled.
Pins 61, 62, AVSS* – 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. 4–15)
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. 4–15)
This pins serves as a common reference for ANA_IN1/
2+ inputs and must be AC-coupled.
Pin 69, ANA_IN2+ – IF Input 2 (Fig. 4–15)
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.
Pin 70, TESTEN – Test Enable Pin (Fig. 4–11)
This pin enables factory test modes. For normal operation, it must be connected to ground.
Pin 52, ASG* – Analog Shield Ground
Analog ground (AHVSS) should be connected to this
pin to reduce cross-coupling between SCART inputs.
MICRONAS INTERMETALL
41
MSP 3438G
Pins 71, 72 XTAL_IN, XTAL_OUT – Crystal Input and
Output Pins (Fig. 4–14)
These pins are connected to an 18.432 MHz crystal
oscillator which is digitally tuned by integrated capacitances. An external clock can be fed into XTAL_IN
(leave XTAL_OUT vacant in this case). 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 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. 4–14)
This is the 18.432 MHz main clock output.
Pins 75, 76, NC – Pins not connected.
PRELIMINARY DATA SHEET
* 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 pins.
The ASG pins should be connected as closely as possible to the MSP ground. They are intended for leading
with the SCART signals as shield lines and should not
be connected to ground at the SCART-connector.
Pins 77, 78, D_CTR_I/O_1/0 – Digital Control Input/
Output Pins (Fig. 4–13)
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. 4–12)
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
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.
42
MICRONAS INTERMETALL
MSP 3438G
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
NC
AUD_CL_OUT
74
31
NC
NC
75
30
NC
NC
76
29
NC
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 34x8G
1
2
3
4
5
6
7
8
9
DACA_L
DACA_R
NC
I2C_CL
NC
I2C_DA
I2S_DA_IN3
I2S_CL
RESETQ
I2S_WS
I2S_WS3
I2S_DA_OUT
I2S_CL3
I2S_DA_IN1
NC
ADR_DA
I2S_DA_IN2
ADR_WS
DVSS
ADR_CL
DVSS
DVSUP
DVSUP
DVSS
DVSUP
Fig. 4–5: 80-pin PQFP package
MICRONAS INTERMETALL
43
MSP 3438G
PRELIMINARY DATA SHEET
ASG
SC2_IN_L
SC3_IN_R
SC2_IN_R
SC3_IN_L
ASG
SC1_IN_L
ASG
SC4_IN_R
SC1_IN_R
SC4_IN_L
VREFTOP
AGNDC
MONO_IN
AHVSS
AVSS
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
NC
NC
58
23
NC
NC
59
22
NC
D_CTR_I/O_1
60
21
DACM_L
C_CTR_I/O_0
61
20
DACM_R
ADR_SEL
62
19
VREF2
STANDBYQ
63
18
DACA_L
NC
64
17
DACA_R
MSP 34x8G
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16
I2C_CL
RESETQ
I2C_DA
I2S_WS3
I2S_CL
I2S_CL3
I2S_WS
NC
I2S_DA_OUT
I2S_DA_IN2/3
I2S_DA_IN1
ADR_DA
ADR_WS
DVSS
DVSUP
ADR_CL
Fig. 4–6: 64-pin PLQFP package
44
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
ADR_WS
NC
ADR_CL
ADR_DA
DVSUP
I2S_DA_IN1
DVSS
I2S_DA_OUT
I2S_DA_IN2/3
I2S_WS
NC
I2S_CL
I2S_CL3
I2C_DA
I2S_WS3
I2C_CL
RESETQ
9
8
7
6
5
4
3
2
1
68 67 66 65 64 63 62 61
NC
10
60
DACA_R
STANDBYQ
11
59
DACA_L
ADR_SEL
12
58
VREF2
D_CTR_I/O_0
13
57
DACM_R
D_CTR_I/O_1
14
56
DACM_L
NC
15
55
NC
NC
16
54
NC
NC
17
53
NC
AUD_CL_OUT
18
52
NC
TP
19
51
SC2_OUT_R
XTAL_OUT
20
50
SC2_OUT_L
XTAL_IN
21
49
VREF1
TESTEN
22
48
SC1_OUT_R
ANA_IN2+
23
47
SC1_OUT_L
ANA_IN−
24
46
CAPL_A
ANA_IN1+
25
45
AHVSUP
AVSUP
26
44
CAPL_M
MSP 34x8G
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
AHVSS
AVSS
MONO_IN
AGNDC
VREFTOP
NC
SC1_IN_R
SC4_IN_L
SC1_IN_L
SC4_IN_R
ASG
ASG
SC2_IN_R
SC3_IN_L
SC2_IN_L
SC3_IN_R
ASG
Fig. 4–7: 68-pin PLCC package
MICRONAS INTERMETALL
45
MSP 3438G
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_IN2/3
20
45
ASG
NC
21
44
SC4_IN_R
I2S_CL3
22
43
SC4_IN_L
I2S_WS3
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
NC
30
35
VREF1
NC
31
34
SC2_OUT_L
NC
32
33
SC2_OUT_R
MSP 34x8G
AUD_CL_OUT
Fig. 4–8: 64-pin PSDIP package
46
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
4.5. Pin Circuits
Pin numbers refer to the PQFP80 package.
DVSUP
DVSUP
P
P
N
N
GND
GND
Fig. 4–9: Output Pins 6, 8, 9, and 10
(I2S_DA_OUT, ADR_DA, ADR_WS, ADR_CL)
Fig. 4–13: Input/Output Pins 4, 5, 77, and 78
(I2S_CL, I2S_WS, D_CTR_I/O_1, D_CTR_I/O_0)
P
N
Gain=0.5
GND
Fig. 4–10: Input/Output Pins 2 and 3
(I2C_CL, I2C_DA)
3−30 pF
500 kΩ
N
2.5 V
3−30 pF
Fig. 4–14: Output/Input Pins 71, 72, and 74
(XTAL_IN, XTAL_OUT, AUD_CL_OUT)
Fig. 4–11: Input Pins 7, 17, 22, 19, 20, 21, 70, and 80
(I2S_DA_IN1..3, I2S_CL3, I2S_WS3, RESETQ,
TESTEN, STANDBYQ)
ANA_IN1+
ANA_IN2+
DVSUP
A
D
23 kΩ
ANA_IN−
VREFTOP
23 kΩ
GND
ADR_SEL
Fig. 4–12: Input Pin 79 (ADR_SEL)
MICRONAS INTERMETALL
Fig. 4–15: Input Pins 58, 67, 68, and 69
(VREFTOP, ANA_IN1+, ANA_IN-, ANA_IN2+)
47
MSP 3438G
PRELIMINARY DATA SHEET
125 kΩ
≈ 3.75 V
0...2 V
Fig. 4–16: Capacitor Pins 38 and 40
(CAPL_A, CAPL_M)
Fig. 4–20: Pin 45 (AGNDC)
26 pF
24 kΩ
≈ 3.75 V
120 kΩ
300 Ω
Fig. 4–17: Input Pin 60 (MONO_IN)
≈ 3.75 V
40 kΩ
≈ 3.75 V
Fig. 4–21: Output Pins 33, 34, 36, and 37
(SC_2_OUT_R/L, SC_1_OUT_R/L)
Fig. 4–18: Input Pins 47, 48, 50, 51, 53, 54, 56, and 57
(SC4-1_IN_L/R)
AHVSUP
0...1.2 mA
3.3 kΩ
Fig. 4–19: Output Pins 24, 25, 27, and 28
(DACA_R/L, DACM_R/L)
48
MICRONAS INTERMETALL
MSP 3438G
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
70
°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
PLCC68
PSDIP64
PLQFP64
PQFP80
AHVSUP,
DVSUP,
AVSUP
1200
1300
960
1000
mW
mW
mW
mW
VIdig
Input Voltage, all Digital Inputs
−0.3
VSUP2+0.3
V
IIdig
Input Current, all Digital Pins
−20
+20
mA1)
VIana
Input Voltage, all Analog Inputs
SCn_IN_s,2)
MONO_IN
−0.3
VSUP1+0.3
V
IIana
Input Current, all Analog Inputs
SCn_IN_s,2)
MONO_IN
−5
+5
mA1)
IOana
Output Current, all SCART Outputs
SCn_OUT_s2)
3), 4)
3), 4)
IOana
Output Current, all Analog Outputs
except SCART Outputs
DACp_s2)
3)
3)
ICana
Output Current, other pins
connected to capacitors
CAPL_p,2)
AGNDC
3)
3)
1)
2)
3)
4)
positive value means current flowing into the circuit
“n” means “1”, “2”, “3”, or “4”, “s” means “L” or “R”, “p” means “M” or “A”
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.
MICRONAS INTERMETALL
49
MSP 3438G
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_s,
DACA_s1)
1)
50
Max.
2.0
VRMS
2.0
VRMS
10
kΩ
6.0
1
nF
µF
10
−10%
Unit
+10%
nF
“n” means “1”, “2”, or “3”, “s” means “L” or “R”, “p” means “M” or “A”
MICRONAS INTERMETALL
MSP 3438G
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
FMMAX
Maximum FM-Deviation (approx.)
normal mode
HDEV2: high deviation mode
HDEV3: very high deviation mode
MICRONAS INTERMETALL
dB
±180
±360
±540
kHz
kHz
kHz
51
MSP 3438G
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
PLCC
approx. 3.3
P(L)QFP approx. 3.3
pF
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.
52
MICRONAS INTERMETALL
MSP 3438G
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
9.6
6.3
17.1
11.2
24.6
16.1
mA
mA
6.4
4.2
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
50
70
85
mA
ISUP3A
Third Supply Current (active)
AVSUP
20
35
45
mA
ISUP1S
First Supply Current
(8-V Operation)
(standby mode) at Tj = 27 °C
AHVSUP
3.5
5.6
7.7
mA
STANDBYQ = low
2.3
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/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
MICRONAS INTERMETALL
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
53
MSP 3438G
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 Inputs 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
ADR_SEL Input Low Voltage
VDIGIH
ADR_SEL Input High Voltage
0.8
IADRSEL
Input Current
−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
54
D_CTR_I/O_0
D_CTR_I/O_1
4.0
MICRONAS INTERMETALL
MSP 3438G
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. 4–22: Power-up sequence
MICRONAS INTERMETALL
55
MSP 3438G
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
2
tI2C5
I C-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
I2C_CL
I2C_CL,
I2C_DA
2
Test Conditions
1.0
MHz
0.4
V
II2COL = 3 mA
1.0
µA
VI2COH = 5 V
II2COH
I C-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
fI2C = 1 MHz
1/FI2C
TI2C4
I2C_CL
TI2C1
TI2C5
TI2C3
TI2C6
TI2C2
I2C_DA as input
TI2COL2
TI2COL1
I2C_DA as output
Fig. 4–23: I2C bus timing diagram
56
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
4.6.3.5. I2S-Bus Characteristics
Symbol
Parameter
Pin Name
VI2SIL
Input Low Voltage
VI2SIH
Input High Voltage
ZI2SI
Input Impedance
I2S_DA_IN1..3
I2S_CL
I2S_WS
I2S_CL3
I2S_WS3
ILEAKI2S
Input Leakage Current
2
Min.
Typ.
Unit
0.2
VSUP2
0.5
5
pF
1
µA
0 V < UINPUT< DVSUP
20
ns
for details see Fig. 4–24
(synchronous I2S interface)
0
ns
tI2S1
I S-Data Input Setup Time
before Rising Edge of Clock
tI2S2
I2S-Data Input Hold Time
after Falling Edge of Clock
fI2SWS
I2S-Word Strobe Input Frequency
I2S_WS
48.0
kHz
fI2SCL
I2S-Clock Input Frequency
I2S_CL
1.536
MHz
RI2SCL
I2S-Clock Input Ratio
tI2SWS1
I2S-Word Strobe Input Setup Time
before Rising Edge of Clock
tI2SWS2
I2S-Word Strobe Input Hold Time
after Falling Edge of Clock
tI2S31
I2S3-Data Input Setup Time
before Rising Edge of Clock
tI2S32
I2S3-Data Input Hold Time
after Falling Edge of Clock
fI2S3WS
I2S3-Word Strobe Input Frequency
I2S_WS3
fI2S3CL
I2S3-Clock
I2S_CL3
RI2S3CL
I2S3-Clock Input Ratio
tI2S3WS1
I2S3-Word Strobe Input Setup
Time
before Rising Edge of Clock
tI2S3WS2
I2S3-Word Strobe Input Hold Time
after Falling Edge of Clock
VI2SOL
I2S Output Low Voltage
VI2SOH
I2S Output High Voltage
I2S_WS
I2S_CL
I2S_DA_OUT
fI2SWS
I2S-Word Strobe Output Frequency
I2S_WS
48.0
kHz
I2S_CL
1.536
MHz
Input Frequency
2
fI2SCL
I S-Clock Output Frequency
tI2S1/I2S2
I2S-Clock High/Low-Ratio
tI2S3
I2S-Data Setup Time
before Rising Edge of Clock
tI2S4
I2S-Data Hold Time
after Falling Edge of Clock
tI2S5
I2S-Word Strobe Setup Time
before Rising Edge of Clock
tI2S6
I2S-Word Strobe Hold Time
after Falling Edge of Clock
MICRONAS INTERMETALL
0.9
I2S_WS
I2S_CL
I2S_DA_IN3
I2S_CL
1.1
60
ns
0
ns
8
ns
0
ns
5
0.9
I2S_WS3
I2S_CL3
50
kHz
12.288
MHz
ns
0
ns
0.4
4.0
1.0
V
II2SOL = 1 mA
V
II2SOH = −1 mA
1.1
200
ns
180
I2S_CL
I2S_WS
for details see Fig. 4–25
(asynchronous I2S interface)
1.1
8
0.9
I2S_CL
I2S_DA_OUT
Test Conditions
VSUP2
−1
I2S_DA_IN1/2
I2S_CL
Max.
200
CL = 30 pF
ns
ns
180
ns
57
MSP 3438G
PRELIMINARY DATA SHEET
1/FI2SWS
I2S_WS
SONY format
PHILIPS format
SONY format (MODUS[6]=0)
PHILIPS format (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 bit left channel
16 bit right channel
Detail B
I2S_DA_OUT R LSB
L MSB
L LSB R MSB
R LSB L LSB
16 bit left channel
16 bit right channel
Data: MSB first
Detail C
Detail A,B
1/FI2SCL
I2S_CL
I2S_CL
TI2SWS1
TI2S1
TI2SWS2
I2S_WS as INPUT
TI2S2
I2S_DA_IN
TI2S5
TI2S3
TI2S6
TI2S4
I2S_DA_OUT
I2S_WS as OUTPUT
Fig. 4–24: I2S timing diagram (synchronous interface)
I2S_CL3
1/FI2S3WS
I2S_WS3
Left sample (MODUS[10]=0)
Right sample (MODUS[10]=0)
Left sample (MODUS[10]=1)
Right sample (MODUS[10]=1)
I2S_DA_IN3
Left aligned, Sony format (MODUS[9]=0)
16,18...32 Bit data & clocks allowed
MSB
I2S_DA_IN3
MSB
Left aligned, Philips format (MODUS[9]=1)
16,18...32 Bit data & clocks allowed
MSB
I2S_DA_IN3
LSB
MSB
Right aligned (MODUS[11]=1)
16 Bit data & 16...32 clocks allowed
LSB
1/FI2S3CL
I2S_CL3
TI2S31
I2S_DA_IN3
TI2S3_WS1
I2S_WS3
Fig. 4–25: I2S timing diagram (asynchronous interface)
58
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
4.6.3.6. Analog Baseband Inputs and Outputs, AGNDC
Symbol
Parameter
Pin Name
Min.
Typ.
Max.
Unit
Test Conditions
Analog Ground
VAGNDC0
RoutAGN
AGNDC Open Circuit Voltage
Rload ≥10 MΩ
AGNDC
8-V Operation:
3.77
V
5-V Operation:
2.49
V
3 V ≤ VAGNDC ≤ 4 V
AGNDC Output Resistance
8-V Operation:
70
125
180
kΩ
5-V Operation:
47
83
120
kΩ
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)
“n” means “1”, “2”, “3”, or “4”;
MICRONAS INTERMETALL
“s” means “L” or “R”
59
MSP 3438G
Symbol
PRELIMINARY DATA SHEET
Parameter
Pin Name
Min.
Typ.
Max.
Unit
Test Conditions
Audio Analog-to-Digital-Converter
VAICL
Analog Input Clipping Level
for A-D Conversion
SCn_IN_s,1)
MONO_IN
fsignal = 1 kHz
8-V Operation:
2.00
2.25
VRM
5-V Operation:
1.13
1.51
VRMS
460
500
Ω
Ω
−70
+70
mV
−1.0
+0.5
dB
fsignal = 1 kHz
−0.5
+0.5
dB
with resp. to 1 kHz
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
(0 to 20000 Hz)
VoutSC
Signal Level at SCART-Output
SCn_OUT_s1)
200
200
SCn_IN_s,1)
MONO_IN
→
SCn_OUT_s1)
330
fsignal = 1 kHz, I = 0.1 mA
SCn_OUT_s1)
Full-scale Digital Input
Signal from DSP
fsignal = 1 kHz
8-V Operation:
1.8
1.9
2.0
VRMS
5-V Operation:
1.17
1.27
1.37
VRMS
2.1
2.1
3.3
4.6
5.0
kΩ
kΩ
8-V Operation:
1.80
2.04
61
2.28
V
mV
Analog Volume at 0 dB
Analog Volume at −30 dB
5-V Operation:
1.12
1.36
40
1.60
V
mV
Analog Volume at 0 dB
Analog Volume at −30 dB
8-V Operation:
1.23
1.37
1.51
VRMS
5-V Operation:
0.76
0.90
1.04
VRMS
Full-scale Digital Input
Signal from DSP.
Analog Volume at 0 dB
fsignal = 1 kHz
Main and AUX Outputs
RoutMA
Main/AUX Output Resistance
at Tj = 27 °C
from TA = 0 to 70 °C
VoutDCMA
DC-Level at Main/AUX-Output
VoutMA
1)
60
DACp_s1)
fsignal = 1 kHz, I = 0.1 mA
Signal Level at Main/AUX-Output
“n” means “1”, “2”, “3”, or “4”;
“s” means “L” or “R”;
“p” means “M” or “A”
MICRONAS INTERMETALL
MSP 3438G
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
DCANA_IN
DC Voltage on IF Inputs
1.3
1.5
1.7
V
XTALKIF
Crosstalk Attenuation
40
dB
BWIF
3 dB Bandwidth
10
MHz
AGC
AGC Step Width
DCVREFTOP
DC Voltage at VREFTOP
0.85
fsignal = 1 MHz
Input Level = −2 dBr
dB
VREFTOP
2.4
2.6
2.7
V
Pin Name
Min.
Typ.
Max.
Unit
4.6.3.8. Power Supply Rejection
Symbol
Parameter
Test Conditions
PSRR: Rejection of Noise on AHVSUP at 1 kHz
PSRR
1)
AGNDC
AGNDC
80
dB
From Analog Input to I2S 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
From I2S Input to MAIN/AUX Output
DACp_s1)
80
dB
“n” means “1”, “2”, “3”, or “4”;
MICRONAS INTERMETALL
“s” means “L” or “R”;
“p” means “M” or “A”
61
MSP 3438G
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
DACp_s1)
Max.
Unit
Test Conditions
88
dB
Input Level = −20 dB with
resp. to VAICL, fsig = 1 kHz,
equally weighted
20 Hz...16 kHz
93
96
dB
Input Level = −20 dB,
fsig = 1 kHz,
equally weighted
20 Hz...20 kHz
85
88
dB
85
78
88
83
dB
dB
Input Level = −20 dB,
fsig = 1 kHz,
equally weighted
20 Hz...15 kHz
Specifications for 8-V Operation
SNR
THD
Signal-to-Noise Ratio
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,
equally weighted
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,
equally weighted
20 Hz...20 kHz
from I2S Input to SCART Output
SCn_OUT_s1)
0.01
0.03
%
DACA_s,
DACM_s1)
0.01
0.03
%
Input Level = −3 dBr,
fsig = 1 kHz,
equally weighted
20 Hz...16 kHz
2
from I S Input to Main or AUX Output
1)
62
“n” means “1”, “2”, “3”, or “4”;
“s” means “L” or “R”;
“p” means “M” or “A”
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
Symbol
Parameter
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
DACp_s1)
Max.
Unit
Test Conditions
85
dB
Input Level = −20 dB with
resp. to VAICL, fsig = 1 kHz,
equally weighted
20 Hz...16 kHz
90
93
dB
Input Level = −20 dB,
fsig = 1 kHz,
equally weighted
20 Hz...20 kHz
82
85
dB
82
75
85
80
dB
dB
Input Level = −20 dB,
fsig = 1 kHz,
equally weighted
20 Hz...15 kHz
Specifications for 5-V Operation
SNR
THD
1)
Signal-to-Noise Ratio
Total Harmonic Distortion
0.1
%
Input Level = −3 dBr with
resp. to VAICL, fsig = 1 kHz,
equally weighted
20 Hz...16 kHz
MONO_IN,
SCn_IN_s
→
SCn_OUT_s1)
0.1
%
Input Level = −3 dBr,
fsig = 1 kHz,
equally weighted
20 Hz...20 kHz
from I2S Input to SCART Output
SCn_OUT_s1)
0.1
%
from I2S Input to Main or AUX Output
DACA_s,
DACM_s1)
0.1
%
Input Level = −3 dBr,
fsig = 1 kHz,
equally weighted
20 Hz...16 kHz
from Analog Input to I2S Output
MONO_IN,
SCn_IN_s1)
from Analog Input to
SCART Output
“n” means “1”, “2”, “3”, or “4”;
MICRONAS INTERMETALL
“s” means “L” or “R”;
0.03
“p” means “M” or “A”
63
MSP 3438G
Symbol
PRELIMINARY DATA SHEET
Parameter
Pin Name
Min.
Typ.
Max.
Unit
Test Conditions
XTALK Specifications for 8-V and 5-V Operation
XTALK
Crosstalk Attenuation
− PLCC68
− PSDIP64
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)
equally weighted
20 Hz...20 kHz
SCn_IN → SCn_OUT1)
PLCC68
PSDIP64
80
80
dB
dB
SC1_IN or SC2_IN → I2S Output
PLCC68
PSDIP64
80
80
dB
dB
SC3_IN → I2S Output
PLCC68
PSDIP64
80
80
dB
dB
I2S Input → SCn_OUT1)
PLCC68
PSDIP64
80
80
dB
dB
between left and right channel within
Main or AUX Output pair
I2S Input → DACp1)
equally weighted
20 Hz...16 kHz
PLCC68
PSDIP64
80
75
dB
dB
between SCART Input/Output pairs1)
D = disturbing program
O = observed program
D: MONO/SCn_IN → SCn_OUT
O: MONO/SCn_IN → SCn_OUT1)
PLCC68
PSDIP64
100
100
dB
dB
D: MONO/SCn_IN → SCn_OUT or unsel.
O: MONO/SCn_IN → I2S Output
PLCC68
PSDIP64
100
95
dB
dB
D: MONO/SCn_IN → SCn_OUT
O: I2S Input → SCn_OUT1)
PLCC68
PSDIP64
100
100
dB
dB
D: MONO/SCn_IN → unselected
O: I2S Input → SC1_OUT1)
PLCC68
PSDIP64
100
100
dB
dB
Crosstalk between Main and AUX Output pairs
I2S Input DSP → DACp1)
XTALK
PLCC68
PSDIP64
95
90
dB
dB
64
(equally weighted
20 Hz...16 kHz)
same signal source on left
and right disturbing channel, effect on each
observed output channel
(equally weighted
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)
(equally weighted
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 → DACp1)
PLCC68
PSDIP64
85
80
dB
dB
SCART output load resistance 10 kΩ
D: MONO/SCn_IN/DSP → SCn_OUT
O: I2S Input → DACp1)
PLCC68
PSDIP64
90
85
dB
dB
SCART output load resistance 30 kΩ
D: I2S Input → DACp
O: MONO/SCn_IN → SCn_OUT1)
PLCC68
PSDIP64
100
95
dB
dB
D: I2S Input → DACM
O: I2S Input → SCn_OUT1)
PLCC68
PSDIP64
100
95
dB
dB
“n” means “1”, “2”, “3”, or “4”;
“s” means “L” or “R”;
“p” means “M” or “A”
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
4.6.3.10. Sound Standard Dependent Characteristics
Symbol
Parameter
Pin Name
Min.
DACp_s
SCn_OUT_s1)
−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 = 7Fh
Output level 1 VRMS at
DACp_s
2.12 kHz, Modulator input
level = 0 dBref
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
%
BERNICAM
NICAM: Bit Error Rate
1
10−7
fRNICAM
NICAM Frequency Response,
20...15000 Hz
−1.0
+1.0
dB
XTALKNICAM
NICAM Crosstalk Attenuation
(Dual)
80
dB
SEPNICAM
NICAM Channel Separation
(Stereo)
80
dB
72
FM+NICAM,
norm conditions
Modulator input
level = −12 dB dBref; RMS
FM Characteristics (MSP Standard Code = 3)
DACp_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 Responses,
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 = 46 h, 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
50
dB
2 FM-carriers
5.5/5.74 MHz, 50 µs,
1 kHz, 40 kHz deviation;
RMS
48
dB
35
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
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
1)
“n” means “1”, “2”, “3”, or “4”;
MICRONAS INTERMETALL
DACp_s,
SCn_OUT_s1)
“s” means “L” or “R”;
0.6
%
“p” means “Loudspeaker (Main)’’ or ‘‘Headphone (AUX)’’
65
MSP 3438G
Symbol
Parameter
PRELIMINARY DATA SHEET
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
fRBTSC
XTALKBTSC
SepBTSC
FMThrPilot
DACp_s,
SCn_OUT_s1)
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
−0.5
0.5
dB
Frequency Response of BTSCSAP, 50 Hz...9 kHz
−1.0
0.6
dB
Stereo → SAP
76
dB
SAP → Stereo
80
dB
Stereo Separation
50 Hz...10 kHz
50 Hz...12 kHz
35
30
dB
dB
Pilot deviation threshold
Stereo off → on
ANA_IN1+,
ANA_IN2+
Stereo on → off
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
3.2
3.5
kHz
1.2
1.5
kHz
4.5 MHz carrier modulated
with fh=15.743 kHz
SIF level=100mVpp
indication: STATUS Bit[6]
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)
66
DACp_s,
SCn_OUT_s1)
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
−0.5
0.5
dB
Frequency Response of BTSCSAP, 50 Hz...9 kHz
−1.0
0.6
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”;
“s” means “L” or “R”; “p” means “M” or “A”
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 INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
Symbol
Parameter
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 EIAJ Sub-Channel
THDEIAJ
fREIAJ
XTALKEIAJ
SEPEIAJ
DACp_s,
SCn_OUT_s1)
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
−0.5
0.5
dB
Frequency Response of EIA-J
Sub-Channel, 50 Hz...12 kHz
−1.0
0.5
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)
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
1)
2)
DACp_s,
SCn_OUT_s1)
0.1
%
0.5
dB
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
dB
“n” means “1”, “2”, “3”, or “4”;
“s” means “L” or “R”; “p” means “M” or “A”
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 INTERMETALL
67
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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)
68
MICRONAS INTERMETALL
MSP 3438G
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
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
MICRONAS INTERMETALL
mono: unmodulated
stereo: 117.5 Hz
dual: 274.1 Hz
55.0699 kHz
149.9 Hz
276.0 Hz
69
MSP 3438G
PRELIMINARY DATA SHEET
5.3. BTSC-Sound System
Table 5–4: Key parameters for BTSC-Sound Systems
Aural
Carrier
Carrier frequency (fh = 15.734 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
70
MICRONAS INTERMETALL
MSP 3438G
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 fp
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)
75 kHz
(100%)
90%1)
10%
90%1)
5%
Sum does not exceed 90% due to interleaving effects
MICRONAS INTERMETALL
71
MSP 3438G
PRELIMINARY DATA SHEET
6. Appendix B: Manual Mode
To adapt the modes of the STANDARD SELECT register to individual requirements, the MSP 34x8G offers a
Manual Mode, which provides sophisticated programming of the MSP 34x8G.
After the setting of the STANDARD SELECT register,
the MSP 34x8G is set up for optimal behavior. Therefore, it is not recommended to use the Manual
mode. Only in those cases, where user specific
requirements concerning detection, identification, or
carrier positioning have to be met, can the Manual
Mode be used.
Note: In case of Automatic Sound Select
(MODUS[0]=1), any modifications of the demodulator
write registers listed below, except AUTO_FM/AM, are
ignored.
6.1. Demodulator Write and Read Registers for Manual 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
3418,
34581)
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 00hex
page
74
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
A2 Stereo Identification Threshold
00 19hex
CM_Threshold
00 24
Carrier-Mute Threshold
00 2Ahex
DCO1_LO
DCO1_HI
00 93
00 9B
Increment channel 1 Low Part
Increment channel 1 High Part
00 00hex
DCO2_LO
DCO2_HI
00 A3
00 AB
Increment channel 2 Low Part
Increment channel 2 High Part
1)
page
76
not in BTSC, EIA-J, and FM-Radio mode
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
3410,
3450
NICAM-Sync bit, NICAM-C-Bits, and bit [2...0] of additional data bits
page
77
ADD_BITS
00 38
NICAM: bit [10...3] of additional data bits
page
77
CIB_BITS
00 3E
NICAM: CIB1 and CIB2 control bits
page
77
ERROR_RATE
00 57
NICAM error rate, updated with 182 ms
page
78
72
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
6.2. DSP Write and Read Registers for Manual 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
Additional Channel Matrix Modes
00 08
00 09
00 0A
00 41
00 0B
00 0C
[7..0]
[SUM/DIFF, AB_XCHANGE, PHASE_CHANGE_B,
PHASE_CHANGE_A, A_ONLY, B_ONLY]
00hex
page
79
FM Fixed Deemphasis
00 0F
[15..8]
[OFF, 50 µs, 75 µs]
OFF
page
79
[7..0]
[OFF, WP1]
OFF
page
79
[7..0]
[B/G, M]
B/G
page
80
FM Adaptive Deemphasis
Identification Mode
00 15
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
page
80
DC level readout FM1/Ch2-L
00 1B
[15..0]
[8000hex ... 7FFFhex]
16 bit two’s complement
page
80
DC level readout FM2/Ch1-R
00 1C
[15..0]
[8000hex ... 7FFFhex]
16 bit two’s complement
page
80
MICRONAS INTERMETALL
Page
73
MSP 3438G
PRELIMINARY DATA SHEET
6.3. Manual Mode:
Description of Demodulator Write Registers
6.3.1. Automatic Switching between NICAM and
Analog Sound
In case of bad NICAM reception or loss of the
NICAM-carrier, the MSP 34x8G 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: 0023hex) provide information about the actual
NICAM-FM/AM-status.
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
6.3.1.1. Function in Automatic Sound Select Mode
Selected Sound
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
– 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.
analog
Sound
ERROR_RATE
threshold/2
threshold
Fig. 6–1: Hysteresis for automatic switching
Table 6–5: Coding of Automatic NICAM/Analog Sound Switching; Reset Status: Mode 0
Mode
Description
AUTO_FM [11..0]
Addr. = 00 21hex
ERROR_RATEThreshold/dec
Source Select:
Input at NICAM Path1)
0
Forced NICAM
(Automatic Switching disabled)
Bit
Bits
Bit
[0]
=0
[10..1] = 0
[11] = 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
Bit
Bit
[0]
=1
[10..1] = 0
[11] = 0
700
NICAM or FM/AM,
depending on
ERROR_RATE
2
Automatic Switching with
external threshold
(Customizing of Automatic
Sound Select)
Bit
Bit
set by customer;
recommended
range: 50...2000
Bit
[0]
=1
[10..1] = 25..1000
= threshold/2
[11]
=0
Forced Analog Mono
(Automatic Switching disabled)
Bit
Bit
Bit
[0]
=1
[10..1] = 0
[11] = 1
none
3
1)
always FM/AM
In case of Automatic Sound Select (MODUS[0] = 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 11).
In case of Automatic Sound Select (MODUS[0] = 1), bit [0] of AUTO_FM is ignored
74
MICRONAS INTERMETALL
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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 6–6: 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 [11...0] 7F0hex
...
190hex
...
0A0hex
force Mono Identification
default setting after reset
minimum Threshold for stable detection
recommended range: 0Ahex...3Chex
6.3.3. Carrier-Mute Threshold
The Carrier-Mute threshold has been made programmable according to the users preferences. An internal
hysteresis ensures stable behavior.
Table 6–7: 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 [6..0]
00hex
...
2Ahex
...
FFhex
Carrier-Mute always ON (both channels muted)
default setting after reset
Carrier-Mute always OFF (both channels forced
on)
recommended range: 14hex...50hex
MICRONAS INTERMETALL
75
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PRELIMINARY DATA SHEET
6.3.4. DCO-Registers
Note: The use of this register is not recommended. It
should be used only in cases where non-standard carrier frequencies have to be processed. Please note,
that the usage of user specific demodulation frequencies is not possible in combination with the Automatic
Sound Select (MODUS[0]=1).
When selecting a TV-sound standard by means of the
STANDARD SELECT register, all frequency tuning is
performed automatically.
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 MSP. In Table 6–8, examples for DCO register
programming are listed. It is necessary to separate
these registers into two categories: low part and high
part. The formula for the calculation of the INCR values for any chosen IF frequency is as follows:
INCRdec = int (f / fs ⋅ 224)
with: int = integer function
f = IF frequency in MHz
fS = sampling frequency (18.432 MHz)
Conversion of INCR into hex-format and separation of
the 12-bit low and high parts lead to the required register values (DCO1_HI and _LO for MSP-Ch1,
DCO2_HI and _LO for MSP-Ch2).
Table 6–8: DCO registers for the MSP 34x8G; reset status: DCO_HI/LO = “00 00”
DCO1_LO 00 93hex, DCO1_HI 00 9Bhex; DCO2_LO 00 A3hex, DCO2_HI 00 ABhex
IF-Freq. [MHz]
DCO_HI [hex]
DCO_LO [hex]
IF-Freq. [MHz]
DCO_HI [hex]
DCO_LO [hex]
4.5
03 E8
00 00
5.04
5.5
5.58
5.7421875
04 60
04 C6
04 D8
04 FC
00 00
03 8E
00 00
00 AA
5.76
5.85
5.94
05 00
05 14
05 28
00 00
00 00
00 00
6.0
6.2
6.5
6.552
05 35
05 61
05 A4
05 B0
05 55
0C 71
07 1C
00 00
6.6
6.65
6.8
05 BA
05 C5
05 E7
0A AA
0C 71
01 C7
7.02
06 18
00 00
7.2
06 40
00 00
7.38
06 68
00 00
7.56
06 90
00 00
76
MICRONAS INTERMETALL
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PRELIMINARY DATA SHEET
6.4. Manual Mode:
Description of Demodulator Read Registers
Note: This register 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 34x8G and to
retrieve information from the MSP.
Table 6–9: NICAM operation modes as defined by the
EBU NICAM 728 specification
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)
All registers except C_AD_BITs are 8 bits wide. They
can be read out of the RAM of the MSP 34x8G.
0
0
1
0
Three independent mono channels
(NICAMA, NICAMB, FM1)
All transmissions take place in 16-bit words. The valid
8-bit data are the 8 LSBs of the received data word.
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)
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.
AUTO_FM: monitor bit for the AUTO_FM Status:
0: NICAM source is NICAM
1: NICAM source is FM
6.4.1. NICAM Mode Control/Additional Data Bits
Register
NICAM operation mode control bits and A[2..0] of the
additional data bits.
Note: It is not necessary to read out and evaluate the
C_AD_BITS. All evaluation is performed in the MSP
and indicated in the STATUS register.
Format:
MSB
C_AD_BITS 00 23hex
LSB
11
...
7
6
5
4
3
2
1
0
Auto
_FM
...
A[2]
A[1]
A[0]
C4
C3
C2
C1
S
6.4.2. Additional Data Bits Register
Contains the remaining 8 of the 11 additional data bits.
The additional data bits are not yet defined by the
NICAM 728 system.
Format:
Important: “S” = Bit[0] indicates correct NICAM-synchronization (S = 1). If S = 0, the MSP 3418/3458G
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 any NICAM standard is selected
by the STANDARD SELECT register.
The operation mode is coded by C4-C1 as shown in
Table 6–9.
MSB
ADD_BITS 00 38hex
LSB
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 INTERMETALL
CIB_BITS 00 3Ehex
LSB
7
6
5
4
3
2
1
0
x
x
x
x
x
x
CIB1
CIB2
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PRELIMINARY DATA SHEET
6.4.4. NICAM Error Rate Register
ERROR_RATE
00 57hex
Error free
0000hex
maximum error rate
07FFhex
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 no NICAM-standard is
selected. 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
700dec. 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. Automatic Search Function for FM-Carrier
Detection in Satellite Mode
The AM demodulation ability of the MSP family 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 implement an automatic FM carrier search.
For this, the MSP has to be switched to AM-mode
(Standard Select Register = 09hex), FM-Prescale must
be set to 7Fhex = +127dec, and the FM DC notch must
be switched off (see Section 6.6.2. on page 80). The
sound-IF frequency range must now be “scanned” in
the MSP-channel 2 by means of the programmable
quadrature mixer (see Section 6.3.4. on page 76) with
an appropriate incremental frequency (i.e. 10 kHz).
After each incrementation, a field strength value is
available at the quasi-peak detector output (quasipeak 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.
The absolute field strength value (can be read out of
“quasi-peak detector output FM1”) gives information
on whether a main FM carrier or a subcarrier was
detected. As a practical consequence, the appropriate
standard can be selected (Astra/Eutelsat Subcarrier =
Standard 51hex, Astra Main Carrier = 50hex, Eutelsat
Main Carrier = 06hex). If the DCO setting for the
selected standard differs from the preset, the correct
DCO coefficients must be transmitted afterwards (e.g.
7.38/7.56 MHz Radio on Astra).
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 in FM demodulation mode.
An example of the automatic search function is realized in the MSPX Windows software.
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PRELIMINARY DATA SHEET
6.5. Manual Mode:
Description of DSP Write Registers
6.5.2. FM Fixed Deemphasis
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
FM Deemphasis
00 0Fhex
H
50 µs
0000 0000
RESET
00hex
75 µs
0000 0001
01hex
OFF
0011 1111
3Fhex
6.5.3. FM Adaptive Deemphasis
FM Adaptive
Deemphasis WP1
00 0Fhex
L
OFF
0000 0000
RESET
00hex
WP1
0011 1111
3Fhex
Note: The Adaptive Deemphasis WP1 requires setting
of fixed deemphasis to 75µs.
6.5.4. NICAM Deemphasis
This table shows additional modes for the channel
matrix registers.
A J17 Deemphasis is always applied to the NICAM
signal. It is not switchable.
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.
MICRONAS INTERMETALL
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MSP 3438G
PRELIMINARY DATA SHEET
6.5.5. 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
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
6.6.2. DC Level Register
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.
3. Set identification mode back to standard B/G or M
6.7. Demodulator Source Channels in Manual Mode
4. Read stereo detection register
6.7.1. Terrestrial Sound Standards
6.6. Manual 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.
Table 6–10 shows the source channel assignment of
the demodulated signals in case of manual mode for
all terrestrial sound standards. See Table 2–2 for the
assignment in the Automatic Sound Select mode. In
manual mode for terrestrial sound standards, only two
demodulator sources are defined.
These registers are not writable.
6.7.2. SAT Sound Standards
Table 6–11 shows the source channel assignment of
the demodulated signals for SAT sound standards.
6.6.1. Stereo Detection Register
for A2 Stereo Systems
Stereo Detection
Register
00 18hex
H
Stereo Mode
Reading
(two’s complement)
MONO
near zero
STEREO
positive value (ideal
reception: 7Fhex)
BILINGUAL
negative value (ideal
reception: 80hex)
Note: It is not necessary to read out and evaluate the
A2 identification level. All evaluation is performed in
the MSP and indicated in the STATUS register.
80
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
Table 6–10: Manual Sound Select Mode for Terrestrial 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
M-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 Mono
analog Mono
no sound
MONO
Sound A Mono
analog Mono
NICAM Mono
STEREO
Sound A Mono
analog Mono
NICAM Stereo
BILINGUAL,
Languages A and B
Sound A Mono
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
with AUTO_FM:
analog Mono
STEREO
MONO + SAP
STEREO + SAP
FM-Radio
40
Table 6–11: Manual Sound Select Modes for SAT-reception (FM Matrix is set automatically)
Source Channels of Sound Select Block for SAT-Modes
Broadcasted
Sound
Standard
FM SAT
Selected
MSP Standard
Code
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)
6, 50hex
MONO
Mono
Mono
Mono
Mono
51hex
STEREO
Stereo
Stereo
Stereo
Stereo
BILINGUAL
Left = A (FM1)
Right = B (FM2)
Left = A (FM1)
Right = B (FM2)
A (FM1)
B (FM2)
MICRONAS INTERMETALL
81
MSP 3438G
PRELIMINARY DATA SHEET
6.8. Exclusions of Audio Baseband Features
In general, all functions can be switched independently.
Two exceptions exist:
1. NICAM cannot be processed simultaneously with
secondary channel (see Fig. 2–2 and Fig. 2–3 on
page 10).
2. FM adaptive deemphasis cannot be processed
simultaneously with FM-identification.
6.9. Phase Relationship of Analog Outputs
The analog output signals: Loudspeaker, Aux, and
SCART2 all have the same phases. 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.
I2S_IN1/2/3
I2S_OUT1/2
Loudspeaker
Aux
SCART1-Ch.
Audio
Baseband
Processing
SCART1
SCART1
SCART2
SCART3
SCART4
SCART
DSP
Input
Select
SCART2-Ch.
SCART2
MONO
MONO, SCART1...4
SCART
Output Select
Fig. 6–2: Phase diagram of the MSP 34x8G
82
MICRONAS INTERMETALL
MSP 3438G
PRELIMINARY DATA SHEET
7. Appendix C: Application Circuit
IF 2 IN
Tuner 2
if ANA_IN2+
not used
Signal GND
C s. section 4.6.2.
8 V(5 V)
+
3.3
µF
330 nF
330 nF
+
1 kΩ
10 µF
CAPL_A (38) 46
XTAL_IN (71) 21
AGNDC (45) 42
VREFTOP (58) 29
ANA_IN− (68) 24
+
330 nF
330 nF
1 µF
31 (56) SC1_IN_L
Loudspeaker
1 nF 1 µF
30 (57) SC1_IN_R
DACM_R (27) 57
1 nF
34 (53) SC2_IN_L
33 (54) SC2_IN_R
35 (52) ASG2
AHVSS
330 nF
1 µF
37 (50) SC3_IN_L
DACA_L (25) 59
36 (51) SC3_IN_R
330 nF
330 nF
330 nF
DACA_R (24) 60
40 (47) SC4_IN_L
39 (48) SC4_IN_R
DVSS
DVSS
FMModulator
1 nF
11 (80) STANDBYQ
5V
Headphone
1 nF 1 µF
38 (49) ASG3
AHVSS
5V
Alternative circuit for
ANA_IN1+ for more
attenuation of video
components:
DACM_L (28) 56
32 (55) ASG1
AHVSS
56 pF
ANA_IN1+
10 µF
28 (60) MONO_IN
330 nF
100 pF
18.432
MHz
+
56 pF
ANA_IN2+ (69) 23
56 pF
ANA_IN1+ (67) 25
56 pF
100
nF
XTAL_OUT (72) 20
Tuner 1
100
nF
CAPL_M (40) 44
10
µF
IF 1 IN
MSP 34x8G
100 Ω
12 (79) ADR_SEL
SC1_OUT_L (37) 47
8 (3) I2C_DA
SC1_OUT_R (36) 48
100 Ω
9 (2) I2C_CL
SC2_OUT_L (34) 50
68 (10) ADR_CL
SC2_OUT_R (33) 51
22 µF
+
100 Ω
3 (8) ADR_DA
22 µF
+
100 Ω
1 (75) ADR_WS
22 µF
+
22 µF
+
6 (5) I2S_WS
7 (4) I2S_CL
5 (6) I2S_DA_OUT
D_CTR_I/O_0 (78) 13
4 (7) I2S_DA_IN1
D_CTR_I/O_1 (77) 14
65 (17) I2S_DA_IN2/3
AUD_CL_OUT (74) 18
- (22) I2S_DA_IN3
62 (20) I2S_WS_3
58 (26) VREF2
49 (35) VREF1
470
pF
1.5
nF
10
µF
AHVSS
AHVSS
8V
(5 V)
AVSS
Note: Pin numbers refer to the
PLCC68 package, numbers in
brackets refer to the PQFP80
package.
AHVSS
5V
45 (39) AHVSUP
27 (62) AVSS
26 (66) AVSUP
470
pF
1.5
nF
10
µF
AVSS
5V
MICRONAS INTERMETALL
66 (16) DVSS
220
pF
470
pF
1.5
nF
10
µF
DVSS
(from Controller, see section 4.6.3.3.)
67 (13) DVSUP
61 (21) RESETQ
RESETQ
43 (44) AHVSS
TESTEN (70) 22
63 (19) I2S_CL_3
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PRELIMINARY DATA SHEET
8. Data Sheet History
1. Preliminary data sheet: “MSP 3438G Multistandard
Sound Processor Family”, Edition July 27, 1999,
6251-494-1PD. First release of the preliminary data
sheet.
MICRONAS INTERMETALL 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: http://www.intermetall.de
Printed in Germany
Order No. 6251-494-1PD
84
All information and data contained in this data sheet is without
any commitment, is not to be considered as an offer for conclusion of a contract nor shall it be construed as to create any liability. Any new issue of this data sheet invalidates previous
issues. Product availability and delivery dates are exclusively
subject to our respective order confirmation form; the same applies to orders based on development samples delivered. By
this publication, MICRONAS INTERMETALL GmbH does not
assume responsibility for patent infringements or other rights of
third parties which may result from its use.
Reprinting is generally permitted, indicating the source.
However, our prior consent must be obtained in all cases.
MICRONAS INTERMETALL