AN7397KS [PANASONIC]
Micro Peripheral IC;
| 型号： | AN7397KS |
| 厂家： | 
PANASONIC |
| 描述： | Micro Peripheral IC 消费电路 商用集成电路 光电二极管 |
| 文件： | 总7页 (文件大小：147K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICs for Audio Common Use
AN7397K, AN7397S
Spatializer IC for I2C bus
■ Overview
AN7397K
Unit: mm
19.1 0.3
Spatializer Audio Processor is a signal process-
20
11
10
ing 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 ste-
reo system.
1
7.62 0.25
1.778
0.5 0.1
0.9 0.25
■ Features
• Provides deep 3-D sound with conventional 2-
speaker system.
SDIP020-P-0300
AN7397S
Unit: mm
• 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.
12.6 0.3
20
11
• Sound localization can be varied.
• A pseudo stereo effect for the monaural audio sig-
nal is achieved.
1
10
0.3
• Positions and moves each sound source on 270°
arc in real time.
1.27
0.4
0.40 0.25
• An on-chip serial control bus (i.e., I2C) to vary
space-effect and change modes.
SOP020-P-0300B
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 sec-
tion later of this datasheet.
■ Applications
• Televisions, videos, audio equipment, DVDs, per-
sonal computers, and game machines
■ Pin Assignment
Note) Spatializer and the device trademark of circle-in-square
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.
11
Description
1
2
L-in
SDA
1/2 VCC
L-out
S-out
R-out
R-ret.
Mode
L-ret.
D-GND
SCL
12
R-det.1
R-det.2
VCC
3
13
4
14
5
15
Space
VCA
F-in
6
16
7
17
8
18
F-out
R-in
9
19
10
20
GND
■ Absolute Maximum Ratings
Parameter
Symbol
VCC
ICC
Rating
Unit
V
Supply voltage
7.0
100
Supply current
mA
mW
°C
2
Power dissipation *
PD
230
1
Operating ambient temperature *
Topr
Tstg
−25 to +75
−55 to +125
1
Storage temperature *
°C
Note) 1: Except for the operating ambient temperature and storage temperature, all ratings are for T = 25°C.
*
a
2: The power dissipation shown is the value for T = 75°C
*
a
■ Recommended Operating Range
Parameter
Supply voltage
Symbol
VCC
Range
Unit
4.5 to 6.8
V
SDC00027BEB
2
AN7397K, AN7397S
■ Electrical Characteristics at VCC = 5 V, f = 1 kHz, Ta = 25°C 2°C
Parameter
Total circuit current
Symbol
Conditions
Min
18
Typ Max
Unit
mA
ITOTAL VIN = 0 mV
25
1.0
20
32
3
Maximum output voltage *
VOUT1 L-in, R-in THD = 1%
0.8
V[rms]
1, 4
Output noise voltage 1 *
VNO1
GV1
L-out, R-out RG = 4.7 kΩ
L-out, R-out VIN = 400 mV
50 µV[rms]
3
Voltage gain 1 *
−2
0
2
dB
%
2, 3
2, 6
Total harmonic distortion 1 *
THD1 L-out, R-out VIN = 400 mV
0.05
80
0.2
1, 5
Output noise voltage 2 *
VNO2
GV2
S-out RG = 4.7 kΩ
S-out VIN = 60 mV
200 µV[rms]
6
Voltage gain 2 *
343
450
0.15
685 mV[rms]
Total harmonic distortion 2 *
I2C interface
THD2 S-out VIN = 60 mV
0.3
%
Sink current at ACK
IACK
Maximum value of sink current of
pin 11 at ACK
2.0
10
mA
SCL/SDA signal input high- level VIHI
SCL/SDA signal input low- level VILO
Input-enable maximum frequency fImax
2.5
0
3.5
0.5
100
V
V
Kbit/s
1
Note) * : 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.
2
3
* : Mode: ST, L-in + R-in, VCA (I C data: BFH)
2
4
* : Mode: ST, VCA (I C data: BFH)
2
5
* : Mode: ST, VCA (I C data: 80 H)
2
6
* : Mode: ST, VCA (I C data: 80 H) for either L-in or R-in
• Design reference data
Parameter
I2C interface
Symbol
Conditions
Min
Typ Max
Unit
Bus free before start
Start condition set-up time
Start condition hold time
SCL/SDA low period
SCL high period
tBUF
tSU, STA
tHD, STA
tLO
4.0
4.0
4.0
4.0
4.0
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
tHI
SCL/SDA rise time
SCL/SDA fall time
Data set-up time (Write)
Data hold time (Write)
Acknowledge set-up time
Acknowledge hold time
Stop condition set-up time
DAC
tR
1.0
0.35
tF
tSU, DAT
tHD, DAT
tSU, ACK
tHD, ACK
tSU, STO
0.25
0
3.5
0
4.0
6-bit DAC DNLE
L6
1 LSB = (Data (max.) − Data (00))/63
0.1
1.0
1.9
LSB
step
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
Stop
condition
ACK
ACK
SDA
tBUF
tLO
tSU.STO
tSU.DAT
tHD.DAT
SCL
tSU.STA
tHD.STA tR
tF
tHI
tLO
■ 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 con-
ventional 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.
SDC00027BEB
4
AN7397K, AN7397S
■ Application Circuit Example (Basic circuitry)
I2C
GEN
A
B
A
10 nF
47 nF
GND
B
47 nF
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
20
11
1
10
7.62
(1.529)
1.778
0.50 0.10
0.90 0.10
3° to 15°
Seating plane
•
SOP020-P-0300E (Lead-free package)
12.63 0.20
20
11
0° to 10°
0.30 0.20
10
1
+0.10
(0.60)
1.27
0.40
-0.05
Seating plane
Seating plane
SDC00027BEB
6
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 characteris-
tics and applied circuits examples of the products. It neither warrants non-infringement of intellec-
tual 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 instru-
ments 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 maxi-
mum rating, the range of operating power supply voltage, and heat radiation characteristics. Other-
wise, 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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