Panasonic AN7397K Spatializer ic for i2c bus Datasheet

ICs for Audio Common Use
AN7397K, AN7397S
Spatializer IC for I2C bus
■ Overview
AN7397K
Spatializer Audio Processor is a signal processing technology, monopolized by Desper Products,
Inc., that was developed for commercial electronics
and multimedia markets, and is based on Desper's
“PRO Spatializer” that is a 3-D audio production
system for business use. The AN7397K, AN7397S
utilizes the innovative technology adopted in that
system, and provides sound enhancement effect and
sound expansion with the conventional 2-speaker stereo system.
Unit: mm
19.1±0.3
11
1
10
0.5±0.1
0.9±0.25
■ Features
1.1±0.25
3.45±0.25
1.778
4.50±0.25
6.35±0.30
20
7.62±0.25
1 5°
3° to
+0.1
0.35 – 0.05
SDIP020-P-0300
• Provides deep 3-D sound with conventional 2speaker system.
• The audio signal recorded through this IC can be
reproduced with usual stereo system.
• Performs optimal processing to the sound source
recorded with surround-effect so as not to give
double effects.
• Sound localization can be varied.
• A pseudo stereo effect for the monaural audio signal is achieved.
• Positions and moves each sound source on 270°
arc in real time.
• An on-chip serial control bus (i.e., I2C) to vary
space-effect and change modes.
AN7397S
Unit: mm
12.6±0.3
11
1
10
1.27
0.4
0.40±0.25
0.3
0.65
0.1±0.1
1.5±0.2
0.15
5.4±0.3
7.7±0.3
20
SOP020-P-0300B
■ Applications
Note) The packages (SDIP020-P-0300 and SOP020-P-0300B) of this
product will be changed to lead-free type (SDIP020-P-0300A
and SOP020-P-0300E). See the new package dimensions section later of this datasheet.
• Televisions, videos, audio equipment, DVDs, personal computers, and game machines
SDA
11
SCL
10
R-det.1
12
D-GND
9
R-det.2
13
L-ret.
8
VCC
14
Mode
7
Space
15
Note) Spatializer and the device trademark of circle-in-square
R-ret.
6
VCA
16
R-out
5
F-in
17
S-out
4
F-out
18
L-out
3
R-in
19
2
1/2 VCC
20
L-in
1
GND
■ Pin Assignment
are owned by Desper Products Inc.
This product can be used with the consent of the Desper Products Inc.
Under the terms of the agreement between Matsushita Electric and Desper Products Inc., no technical information on the
Spatializer, which is applied to this product, shall be provided.
Publication date: October 2002
SDC00027BEB
1
AN7397K, AN7397S
■ Pin Descriptions
Pin No.
Description
Pin No.
Description
1
L-in
11
SDA
2
1/2 VCC
12
R-det.1
3
L-out
13
R-det.2
4
S-out
14
VCC
5
R-out
15
Space
6
R-ret.
16
VCA
7
Mode
17
F-in
8
L-ret.
18
F-out
9
D-GND
19
R-in
10
SCL
20
GND
■ Absolute Maximum Ratings
Parameter
Symbol
Rating
Unit
VCC
7.0
V
ICC
100
mA
PD
230
mW
Topr
−25 to +75
°C
Tstg
−55 to +125
°C
Supply voltage
Supply current
Power dissipation
*2
Operating ambient temperature
Storage temperature
*1
*1
Note) *1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25°C.
*2: The power dissipation shown is the value for Ta = 75°C
■ Recommended Operating Range
Parameter
Supply voltage
2
Symbol
Range
Unit
VCC
4.5 to 6.8
V
SDC00027BEB
AN7397K, AN7397S
■ Electrical Characteristics at VCC = 5 V, f = 1 kHz, Ta = 25°C ± 2°C
Parameter
Symbol
Total circuit current
Maximum output voltage
Output noise voltage 1
Voltage gain 1
*3
*1, 4
*3
Total harmonic distortion 1
Output noise voltage 2
Voltage gain 2
*1, 5
*6
Total harmonic distortion 2
I2C
*2, 3
*2, 6
Conditions
Min
Typ
Max
Unit
ITOTAL
VIN = 0 mV
18
25
32
mA
VOUT1
L-in, R-in THD = 1%
0.8
1.0

V[rms]
VNO1
L-out, R-out RG = 4.7 kΩ

20
50
µV[rms]
GV1
L-out, R-out VIN = 400 mV
−2
0
2
dB
THD1
L-out, R-out VIN = 400 mV

0.05
0.2
%
VNO2
S-out RG = 4.7 kΩ

80
200
µV[rms]
GV2
S-out VIN = 60 mV
343
450
685
mV[rms]
THD2
S-out VIN = 60 mV

0.15
0.3
%
Maximum value of sink current of
pin 11 at ACK
2.0
10

mA
interface
Sink current at ACK
IACK
SCL/SDA signal input high- level
VIHI
2.5

3.5
V
SCL/SDA signal input low- level
VILO
0

0.5
V
Input-enable maximum frequency
fImax


100
Kbit/s
Min
Typ
Max
Unit
tBUF
4.0


µs
Start condition set-up time
tSU, STA
4.0


µs
Start condition hold time
tHD, STA
4.0


µs
SCL/SDA low period
tLO
4.0


µs
SCL high period
tHI
4.0


µs
SCL/SDA rise time
tR


1.0
µs
SCL/SDA fall time
tF


0.35
µs
Data set-up time (Write)
tSU, DAT
0.25


µs
Data hold time (Write)
tHD, DAT
0


µs
Acknowledge set-up time
tSU, ACK


3.5
µs
Acknowledge hold time
tHD, ACK
0


µs
Stop condition set-up time
tSU, STO
4.0


µs
0.1
1.0
1.9
LSB
step
Note) *1 : In measuring, the filter with A-characteristic curve is used.
*2 : In measuring, the filter for the range of 15 Hz to 30 kHz (12 dB/OCT) is used.
*3 : Mode: ST, L-in + R-in, VCA (I2C data: BFH)
*4 : Mode: ST, VCA (I2C data: BFH)
*5 : Mode: ST, VCA (I2C data: 80 H)
*6 : Mode: ST, VCA (I2C data: 80 H) for either L-in or R-in
• Design reference data
Parameter
I2C
Symbol
Conditions
interface
Bus free before start
DAC
6-bit DAC DNLE
L6
1 LSB = (Data (max.) − Data (00))/63
SDC00027BEB
3
AN7397K, AN7397S
■ Electrical Characteristics at VCC = 5 V, f = 1 kHz, Ta = 25°C ± 2°C (continued)
• DAC timing chart
Start
condition
Slave
address
Data
byte
ACK
Stop
ACK condition
SDA
tBUF
tSU.DAT
tLO
tSU.STO
tHD.DAT
SCL
tSU.STA
tHD.STA
tR
tF
tHI
■ Conceptual Explanation of Spatializer Operation
• Normal stereo
All sounds are heard from only between two speakers, right
and left.
• Conventional surround
The sound expands toward the outside of the speaker
system, but the sound position comes apart mostly in the conventional systems.
• Spatializer
The sound expands toward the outside of the two speakers,
and yet their positions are stable and an expanded, deep sound
are gotten.
4
SDC00027BEB
tLO
AN7397K, AN7397S
GND
47 nF
11 SDA
A
SCL 10
10 µF
12 R-det.1
B
D-GND 9
10 µF
13 R-det.2
L-ret. 8
22 µF *
VCC
14
7
Mode
16 VCA
5
2.2 µF
A
I2 C
GEN
B
R-out
S-out
L-out
2.2 µF
2.2 µF
R-ret. 6
17 F-in
4
15 Space
150 kΩ
1 µF
18 F-out
3
100 nF
10 nF
47 nF
33 µF
19
1/2 VCC 2
L-in
1 µF
20
1
1 µF
GND
R-in
■ Application Circuit Example (Basic circuitry)
Note) When switching noise occurs at mode switching, insert a capacitor between pin 7 and GND.
*: For the capacitor of 22 µF, use that of a non-polar type.
SDC00027BEB
5
AN7397K, AN7397S
■ New Package Dimensions (Unit: mm)
• SDIP020-P-0300A (Lead-free package)
19.06±0.30
11
6.35±0.20
20
3.55±0.20
1.10±0.25
4.50±0.25
10
3.45±0.25
1
+0.10
0.25 -0.05
7.62
(1.529)
1.778
0.50±0.10
3° to 15°
0.90±0.10
Seating plane
• SOP020-P-0300E (Lead-free package)
12.63±0.20
+0.10
0.15-0.05
7.60±0.30
11
5.50±0.20
20
0° to 10°
0.30±0.20
10
1.27
Seating plane
6
0.40+0.10
-0.05
1.50±0.20
1
0.10±0.10
(0.60)
SDC00027BEB
Seating plane
Request for your special attention and precautions in using the technical information
and semiconductors described in this material
(1) An export permit needs to be obtained from the competent authorities of the Japanese Government
if any of the products or technologies described in this material and controlled under the "Foreign
Exchange and Foreign Trade Law" is to be exported or taken out of Japan.
(2) The technical information described in this material is limited to showing representative characteristics and applied circuits examples of the products. It neither warrants non-infringement of intellectual property right or any other rights owned by our company or a third party, nor grants any license.
(3) We are not liable for the infringement of rights owned by a third party arising out of the use of the
product or technologies as described in this material.
(4) The products described in this material are intended to be used for standard applications or general
electronic equipment (such as office equipment, communications equipment, measuring instruments and household appliances).
Consult our sales staff in advance for information on the following applications:
• Special applications (such as for airplanes, aerospace, automobiles, traffic control equipment,
combustion equipment, life support systems and safety devices) in which exceptional quality and
reliability are required, or if the failure or malfunction of the products may directly jeopardize life or
harm the human body.
• Any applications other than the standard applications intended.
(5) The products and product specifications described in this material are subject to change without
notice for modification and/or improvement. At the final stage of your design, purchasing, or use of
the products, therefore, ask for the most up-to-date Product Standards in advance to make sure that
the latest specifications satisfy your requirements.
(6) When designing your equipment, comply with the guaranteed values, in particular those of maximum rating, the range of operating power supply voltage, and heat radiation characteristics. Otherwise, we will not be liable for any defect which may arise later in your equipment.
Even when the products are used within the guaranteed values, take into the consideration of
incidence of break down and failure mode, possible to occur to semiconductor products. Measures
on the systems such as redundant design, arresting the spread of fire or preventing glitch are
recommended in order to prevent physical injury, fire, social damages, for example, by using the
products.
(7) When using products for which damp-proof packing is required, observe the conditions (including
shelf life and amount of time let standing of unsealed items) agreed upon when specification sheets
are individually exchanged.
(8) This material may be not reprinted or reproduced whether wholly or partially, without the prior written
permission of Matsushita Electric Industrial Co., Ltd.
2002 JUL
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