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ICs for Audio Common Use
AN7396K
Sound signal processing with built-in Spatializer IC
I Overview
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 AN7396K utilizes the innovative technology adopted in that system. It provides sound enhancement effect and sound expansion with the conventional 2-speaker stereo system. Moreover, the AN7396K is a sound processing IC which incorporates the I2C Bus-controllable mute, sound AGC, bass reinforcement, tone (bass and treble), balance, and volume circuits.
1 30
Unit: mm
0.50.1 0.90.25
26.70.3
15 8.60.3
16 1.00.25 4.70.25 3.30.25
I Features
* Provides deep 3-D sound with conventional 2-speaker system. * Performs optimal processing to the sound source recorded with surround-effect so as not to give double effects. * Provides the functions of muting, AGC, bass reinforcement, tone, balance, and volume control. * Supports I2C Bus controls.
10.160.25 3 to 15
0.35-0.05
+0.1
SDIP030-P-0400 Note) The package of this product will be changed to lead-free type (SDIP030-P-0400B). See the new package dimensions section later of this datasheet.
I Applications
* Televisions, videos, audio equipment, and game machines
I Block Diagram
BL.D. Space R-out F-out VREF VCA SDA R.B. SCL R-in VCC T.D. R.T. F-in BB
29
28
27
26
25
24
23
22
21
20
19
18
17
30
Bass reinforcement
AGC
Spatializer
Tone control
Volume control 2.2 k
Balance control/ Mute
10
11
12
13
14
BL
BR
AGC
L-in
TIM2
TIM1
Mode
R-ret.
L-ret.
GND
L.T.
L.B.
B.D.
V.D.
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.
L-out
15
1
2
3
4
5
6
7
8
9
16
1.778
Publication date: November 2001
SDC00026BEB
1
AN7396K
I Pin Descriptions
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 R-ret. L-ret. BL out BR out AGC L-ch. input TIM2 TIM1 Mode DAC output GND L-ch. treble FC set L-ch. bass FC set Bass DAC output Volume DAC output L-ch. output Description Pin No. 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 I2C I2C Description communication clock communication data
R-ch. output Treble DAC output Balance DAC output R-ch. treble FC set R-ch. bass FC set Bass MIX FC adjustment 1/2 VCC R-ch. input Power supply F-out F-in Space VCA
I Absolute Maximum Ratings
Parameter Supply voltage Supply current Power dissipation Operating ambient temperature Storage temperature
* *
Symbol VCC ICC PD Topr Tstg
Rating 11.0 90 990 -25 to +75 -55 to +150
Unit V mA mW C C
Note) *: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25C.
I Recommended Operating Range
Parameter Supply voltage Symbol VCC Range 6.0 to 10.0 Unit V
2
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AN7396K
I Electrical Characteristics at VCC = 9 V, Ta = 25C 2C
Parameter Volume max. level Volume 1/2 level
*1 *1 *1 *1 *1
Symbol VVmax VV1/2 VVmin VBmax VBmin VBB VBC VTB VTC ICCT
*1
Conditions VIN = 1 V[rms], f = 1 kHz VIN = 1 V[rms], f = 1 kHz VIN = 1 V[rms], f = 1 kHz VIN = 1 V[rms], f = 1 kHz VIN = 1 V[rms], f = 1 kHz VIN = 400 mV[rms], f = 50 Hz VIN = 400 mV[rms], f = 50 Hz VIN = 400 mV[rms], f = 20 kHz VIN = 400 mV[rms], f = 20 kHz VIN = 0 mV VIN = 1 V[rms], f = 1 kHz THD = 1%, f = 1 kHz VIN = 0 mV, RG = 4.7 k VIN = 0 mV, RG = 4.7 k VIN = 400 mV[rms], f = 50 Hz VIN = 400 mV[rms], f = 50 Hz VIN = 50 mV[rms], f = 1 kHz VIN = 0 mV, RG = 4.7 k VIN = 50 mV[rms], f = 1 kHz VIN = 1 V[rms], f = 1 kHz VIN = 1 V[rms], f = 1 kHz VIN = 1 V[rms], f = 1 kHz VIN = 50 mV[rms], f = 1 kHz VIN = 1 V[rms], f = 1 kHz The maximum value of sink current of pin 17 at ACK
Min -1 -1 10
Typ 0 -100 0 -82 12.5
Max 1 -90 1 -80 15 -8.5 15 -8.5 90 0.3 -90 120 10 11 6 750 150 0.3 -66 1 2
Unit dB dB dB dB dB dB dB dB dB mA % V[rms] dB V[rms] V[rms] dB dB mV[rms] V[rms] % dB dB dB
-14.5 -12.5 -10.5
Volume min. level
Balance max. level Balance min. level
Bus bootstrap level Bus cut level Treble bootstrap level Treble cut level Circuit current
*1
-13.5 -11.0 10 12.5 -13.5 -11.0 45 2.0 7 2 415 -1 -2 65 0.1 2.2 -100 82 4 9 4 600 110 0.1 -78 0 0
Total harmonic distortion max. Maximum input voltage Muting level
*1 *2 *2 *1
THDmax VImax
VMUTE VIN = 1 V[rms], f = 1 kHz VNmax VNmin VXBmax VXBmin VSU1
*2
Noise level at volume max. Noise level at volume min.
Bass reinforcement max. level Bass reinforcement min. level Level at surround max.
*1
Noise level at surround max. Total harmonic distortion at surround max. *1 Crosstalk *2 Channel balance (max.) Channel balance (1/4) AGC AGC gain 1 *1 AGC gain 2 I2C
*1 *1 *1
VSN THDSU CT CBmax CB1/4
VAGC1 VAGC2 IACK VIHI VILO fImax
77 230
110 345
150 470 5.0 0.5 100
mV[rms] mV[rms]
interface 2.0 3.5 0 10 mA V V Kbit/s
Sink current at ACK SCL, SDA signal input high-level SCL, SDA signal input low-level Maximum input frequency
Note) *1: The DIN audio filter is used. *2: The A-curve filter is used.
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AN7396K
I Electrical Characteristics at VCC = 9 V, Ta = 25C 2C (continued)
* Design reference data
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
Parameter I2C Interface
Symbol
Conditions
Min
Typ 1.0 150 200 250 350 290
Max 1.0 0.35 3.5 1.9 430
Unit s s s s s s s s s s s s LSB step mV[rms] mV[rms] mV[rms] mV[rms] mV[rms]
Bus free before start Start condition set-up time Start condition hold time SCL/SDA low period SCL high period 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 6-bit DAC DNLE AGC gain 3 (Sub address 04H: 05H) *1 AGC gain 4 (Sub address 04H: 03H) *1 AGC gain 5 (Sub address 04H: 01H) *1 AGC gain 6 (Sub address 04H: 07H) *1 AGC gain 7 (Sub address 04H: 03H) *1
Note) *1: The DIN audio filter is used.
tBUF tSU, STA tHD, STA tLO tHI tR tF tSU, DAT tHD, DAT tSU, ACK tHD, ACK tSU, STO L6 VAGC3 VAGC4 VAGC5 VAGC6 VAGC7 1 LSB = (Data(max.) - Data(00))/63 VIN = 100 mV[rms], f = 1 kHz VIN = 140 mV[rms], f = 1 kHz VIN = 200 mV[rms], f = 1 kHz VIN = 280 mV[rms], f = 1 kHz VIN = 500 mV[rms], f = 1 kHz
4.0 4.0 4.0 4.0 4.0 0.25 0 0 4.0
0.1 180
* DAC timing chart
Start condition SDA tBUF SCL tSU.STA tHD.STA tR tF tHI tLO tSU.DAT tHD.DAT tLO tSU.STO Slave address ACK Sub address ACK Data byte Stop ACK condition
4
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AN7396K
I Terminal Equivalent Circuits at VCC = 9 V, Ta = 25C
Pin No. Pin name 1 2 3 R-ret. L-ret. BL out Equivalent circuit Description R return L return L-ch. Spatializer output Voltage (V) 4.5 4.5 4.5
3
4
BR out
R-ch. Spatializer output
4.5
4
5
AGC
Level 2 Level 1
AGC level sensor
This parameter fluctuates with the input level. 0.5 to 2.0
430 50 k
5
6 L-in L-ch. input 4.5
6 50 k 1/2 VCC
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AN7396K
I Terminal Equivalent Circuits at VCC = 9 V, Ta = 25C (continued)
Pin No. Pin name 7 TIM2 Equivalent circuit Description RMS detector 2 Voltage (V) 0.6
7
8
TIM1
RMS detector 1
0.6
8
9
MD
Mode DAC output
This parameter fluctuates with I2C data. 0.7 to 2.4
10 11
GND L.T.
3 5.7 k 11 1.5 k
Ground L-ch. treble FC set
0 4.5
1.5 k
8 k
12
L.B.
L-ch. bass FC set
4.5
8.64 k
12
1.36 k
6
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AN7396K
I Terminal Equivalent Circuits at VCC = 9 V, Ta = 25C (continued)
Pin No. Pin name 13 B.D. Equivalent circuit Description Bass DAC output Voltage (V) This parameter fluctuates with I2C data. 1.1 to 2.3
13 250
250 9.4 k 1.62 V
14
V.D. 3V 5 k 14 11 k 250
Volume DAC output
This parameter fluctuates with I2C data. 2 to 3.8
15
L-out
L-ch. output
4.5
15
16
SCL
I2C Bus clock input
1 k 16
17
SDA
I2C Bus data input
17
1 k
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AN7396K
I Terminal Equivalent Circuits at VCC = 9 V, Ta = 25C (continued)
Pin No. Pin name 18 R-out Equivalent circuit Description R-ch. output Voltage (V) 4.5
18
19
T.D.
Treble DAC output
This parameter fluctuates with I2C data. 1.1 to 2.3
19 250
250 9.4 k 1.62 V
20
BL.D.
3V 5 k 20 250 250
Balance DAC output
This parameter fluctuates with I2C data. 2 to 3
21
R.T.
4 5.7 k 21 1.5 k
R-ch. treble FC set
4.5
1.5 k
8 k
8
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AN7396K
I Terminal Equivalent Circuits at VCC = 9 V, Ta = 25C (continued)
Pin No. Pin name 22 R.B. Equivalent circuit Description R-ch. bass FC set Voltage (V) 4.5
8.64 k
22
1.36 k
23
BB
Bass MIX gain adjustment
4.5
2.2 k
23
24
VREF
Reference voltage stabilization
4.5
50 k 24 50 k
25
R-in
R-ch. input
4.5
25
200 50 k 1/2 VCC
26 27 28
VCC F-out F-in
None
Power supply F out F in
VCC 4.5 4.5
SDC00026BEB
9
AN7396K
I Terminal Equivalent Circuits at VCC = 9 V, Ta = 25C (continued)
Pin No. Pin name 29 Space Equivalent circuit
VCC VCC VCC
Description Space
Voltage (V) This parameter fluctuates with I2C data. 2 to 3
29
30
VCA
VCA
This parameter fluctuates with I2C data. 2 to 3
I 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.
10
SDC00026BEB
AN7396K
I Precautions in Use and Application Method
* Method of setting AGC control Turning on AGC, AGC is set to 0 dB for small signals, "Bootstrap" for medium signals, and "Gain Reduction" for large signals. The AGC input-output characteristics can be controlled by I2C as follows. AGC characteristic
1 000 AGC = Off "11" "00" "01" AGC = On "10" 100 Data of sub address 04H D2 D1
Output level (mV[rms])
10
1 1 mV 10 mV 100 mV 1V 10 V
Input level (RMS)
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12
AN7396K
R-ret. 1
AGC
30 VCA 150 k 22 F 29 Space
L-ret. 2
47 nF 47 nF
R-ret. 1 30 VCA 150 k 22 F 29 Space 28 F-in 27 F-out 26 25 10 F 24 VREF 10 F 23 BB 1 F Non-polarity 10 nF 100 nF VCC R-in
AGC
L-ret. 2 28 F-in 27 F-out 100 nF 26 VCC
6
Tone control
BL 3 10 nF
BR 4 220 k AGC 5
Spatializer
1 F Non-polarity
BL 3
I Application Circuit Examples
* Bass reinforcement circuit example
Spatializer
220 k 25 10 F 24 VREF 10 F 23 BB
9 10 11 12 13 14 15 8 7
47 nF
47 nF
BR 4
AGC 5
6 R-in
Tone control
7
* Application circuit example of obtaining L+R output instead of bass reinforcement
SDC00026BEB
8
9
10 F L-in 10 F TIM2 10 F TIM1 10 F Mode 10 F GND
Volume control
Volume control
10
2.2 k
2.2 k
11
L+R-out 10 F 22 R.B. 0.1 F 21 R.T. 10 nF 20 BL.D.
10 F L-in 10 F TIM2 10 F TIM1 10 F Mode 10 F GND
Bass reinforcement
Bass reinforcement
12
0.68 F 22 R.B. 0.1 F 21 R.T. 10 nF 20 BL.D. 10 F 19 T.D. 10 F 18 10 F 17 16 R-out SDA L-out 10 F SCL
13
L.T. 10 nF L.B. 0.1 F B.D. 10 F V.D. 10 F 10 F T.D. 19 10 F 18 R-out 10 F 17 SDA 16 SCL
14
L.T. 10 nF L.B. 0.1 F B.D. 10 F V.D. 10 F
Balance control/ Mute
Balance control/ Mute
L-out
15
10 F
AN7396K
I New Package Dimensions (Unit: mm)
* SDIP030-P-0400B (Lead-free package) 26.680.30 30 16
8.600.20
1
15
(0.894)
1.778
0.50+0.10 -0.05 0.70+0.10 -0.05 0.90+0.10 -0.05
1.130.25 3.300.25
4.830.25
10.16 3 to 15
0.30 -0.05
+0.10
Seating plane
SDC00026BEB
13
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 circuit examples of the products. It does not constitute the warranting of industrial property, the granting of relative rights, or the granting of any license. (3) 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. (4) The products and product specifications described in this material are subject to change without notice for reasons of 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. (5) 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, redundant design is recommended, so that such equipment may not violate relevant laws or regulations because of the function of our products. (6) When using products for which dry packing is required, observe the conditions (including shelf life and after-unpacking standby time) agreed upon when specification sheets are individually exchanged. (7) No part of this material may be reprinted or reproduced by any means without written permission from our company.
Please read the following notes before using the datasheets
A. These materials are intended as a reference to assist customers with the selection of Panasonic semiconductor products best suited to their applications. Due to modification or other reasons, any information contained in this material, such as available product types, technical data, and so on, is subject to change without notice. Customers are advised to contact our semiconductor sales office and obtain the latest information before starting precise technical research and/or purchasing activities. B. Panasonic is endeavoring to continually improve the quality and reliability of these materials but there is always the possibility that further rectifications will be required in the future. Therefore, Panasonic will not assume any liability for any damages arising from any errors etc. that may appear in this material. C. These materials are solely intended for a customer's individual use. Therefore, without the prior written approval of Panasonic, any other use such as reproducing, selling, or distributing this material to a third party, via the Internet or in any other way, is prohibited.
2001 MAR

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