AN7396K [PANASONIC]
Sound signal processing with built-in Spatializer IC; 具有内置Spatializer集成电路声音信号处理
| 型号： | AN7396K |
| 厂家： | 
PANASONIC |
| 描述： | Sound signal processing with built-in Spatializer IC |
| 文件： | 总14页 (文件大小：240K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICs for Audio Common Use
AN7396K
Sound signal processing with built-in Spatializer IC
I Overview
Unit: mm
1
3±
Spatializer Audio Processor is a signal processing
technology, monopolized by Desper Products, Inc., that
was developed for commercial electronics and multime-
dia 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
15
16
1.±±±.25
4.7±±.25 3.3±±.25
8.6±±.3
AGC, bass reinforcement, tone (bass and treble), balance,
and volume circuits.
1±.16±±.25
3° to 15°
I Features
SDIP030-P-0400
• Provides deep 3-D sound with conventional 2-speaker
system.
• Performs optimal processing to the sound source re-
corded with surround-effect so as not to give double
effects.
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.
• Provides the functions of muting, AGC, bass reinforce-
ment, tone, balance, and volume control.
• Supports I2C Bus controls.
I Applications
• Televisions, videos, audio equipment, and game machines
I Block Diagram
Bass reinforcement
Balance control/
Mute
AGC
Spatializer
Tone control
Volume control
2.2 kΩ
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: November 2001
SDC00026BEB
1
AN7396K
I Pin Descriptions
Pin No.
Description
Pin No.
16
Description
I2C communication clock
I2C communication data
R-ch. output
1
2
R-ret.
L-ret.
17
3
BL out
BR out
AGC
18
4
19
Treble DAC output
Balance DAC output
R-ch. treble FC set
R-ch. bass FC set
Bass MIX FC adjustment
1/2 VCC
5
20
6
L-ch. input
TIM2
21
7
22
8
TIM1
23
9
Mode DAC output
GND
24
10
11
12
13
14
15
25
R-ch. input
L-ch. treble FC set
L-ch. bass FC set
Bass DAC output
Volume DAC output
L-ch. output
26
Power supply
27
F-out
28
F-in
29
Space
30
VCA
I Absolute Maximum Ratings
Parameter
Symbol
VCC
ICC
Rating
Unit
V
Supply voltage
11.0
90
Supply current
mA
mW
°C
Power dissipation
PD
990
Operating ambient temperature *
Storage temperature *
Topr
Tstg
−25 to +75
−55 to +150
°C
Note) : Except for the operating ambient temperature and storage temperature, all ratings are for T = 25°C.
*
a
I Recommended Operating Range
Parameter
Supply voltage
Symbol
Range
Unit
VCC
6.0 to 10.0
V
SDC00026BEB
2
AN7396K
I Electrical Characteristics at VCC = 9 V, Ta = 25°C 2°C
Parameter
Symbol
Conditions
Min
Typ Max
Unit
dB
1
Volume max. level *
VVmax VIN = 1 V[rms], f = 1 kHz
VV1/2 VIN = 1 V[rms], f = 1 kHz
VVmin VIN = 1 V[rms], f = 1 kHz
VBmax VIN = 1 V[rms], f = 1 kHz
VBmin VIN = 1 V[rms], f = 1 kHz
−1
0
1
1
Volume 1/2 level *
−14.5 −12.5 −10.5
dB
1
Volume min. level *
−1
10
−100 −90
dB
1
Balance max. level *
0
1
dB
1
Balance min. level *
−82
12.5
−80
15
dB
Bus bootstrap level
Bus cut level
VBB
VBC
VTB
VTC
ICCT
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
dB
−13.5 −11.0 −8.5
10 12.5 15
−13.5 −11.0 −8.5
dB
Treble bootstrap level
Treble cut level
dB
dB
1
Circuit current *
45
2.0
7
65
0.1
2.2
90
0.3
mA
%
1
Total harmonic distortion max. * THDmax VIN = 1 V[rms], f = 1 kHz
Maximum input voltage *
1
VImax
THD = 1%, f = 1 kHz
V[rms]
dB
1
Muting level *
VMUTE VIN = 1 V[rms], f = 1 kHz
VNmax VIN = 0 mV, RG = 4.7 kΩ
−100 −90
2
Noise level at volume max. *
82
4
120 µV[rms]
10 µV[rms]
2
Noise level at volume min. *
VNmin
VIN = 0 mV, RG = 4.7 kΩ
Bass reinforcement max. level VXBmax VIN = 400 mV[rms], f = 50 Hz
9
11
6
dB
dB
Bass reinforcement min. level
VXBmin VIN = 400 mV[rms], f = 50 Hz
2
4
1
Level at surround max. *
VSU1
VSN
VIN = 50 mV[rms], f = 1 kHz
VIN = 0 mV, RG = 4.7 kΩ
415
600
110
0.1
750 mV[rms]
2
Noise level at surround max. *
150 µV[rms]
Total harmonic distortion at
THDSU VIN = 50 mV[rms], f = 1 kHz
0.3
%
1
surround max. *
2
Crosstalk *
CT
CBmax VIN = 1 V[rms], f = 1 kHz
CB1/4 VIN = 1 V[rms], f = 1 kHz
VIN = 1 V[rms], f = 1 kHz
−1
−2
−78
0
−66
1
dB
dB
dB
1
Channel balance (max.) *
1
Channel balance (1/4) *
0
2
AGC
1
AGC gain 1 *
VAGC1 VIN = 50 mV[rms], f = 1 kHz
VAGC2 VIN = 1 V[rms], f = 1 kHz
77
110
345
150 mV[rms]
470 mV[rms]
AGC gain 2 *1
230
I2C interface
Sink current at ACK
IACK
VIHI
VILO
fImax
The maximum value of sink current
of pin 17 at ACK
2.0
3.5
0
10
5.0
0.5
100
mA
V
SCL, SDA signal input
high-level
SCL, SDA signal input
low-level
V
Maximum input frequency
Kbit/s
Note) 1: The DIN audio filter is used.
*
2: The A-curve filter is used.
*
SDC00026BEB
3
AN7396K
I Electrical Characteristics at VCC = 9 V, Ta = 25°C 2°C (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 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
150
200
250
350
290
1.9
LSB
step
AGC gain 3
(Sub address 04H: 05H) *
VAGC3 VIN = 100 mV[rms], f = 1 kHz
VAGC4 VIN = 140 mV[rms], f = 1 kHz
VAGC5 VIN = 200 mV[rms], f = 1 kHz
VAGC6 VIN = 280 mV[rms], f = 1 kHz
VAGC7 VIN = 500 mV[rms], f = 1 kHz
mV[rms]
mV[rms]
mV[rms]
mV[rms]
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) *
180
430 mV[rms]
1
Note) 1: The DIN audio filter is used.
*
• DAC timing chart
Start
condition
Slave
address
Sub
address
Data
byte
Stop
ACK
ACK
ACK
condition
SDA
tBUF
tLO
tSU.STO
tSU.DAT
tHD.DAT
SCL
tSU.STA
tHD.STA tR
tF
tHI
tLO
SDC00026BEB
4
AN7396K
I Terminal Equivalent Circuits at VCC = 9 V, Ta = 25°C
Pin No. Pin name
Equivalent circuit
Description
R return
Voltage (V)
1
2
3
R-ret.
L-ret.
BL out
4.5
4.5
4.5
L return
L-ch. Spatializer output
3
4
BR out
R-ch. Spatializer output
4.5
4
5
AGC
AGC level sensor
This parameter
fluctuates with
the input level.
0.5 to 2.0
Level 2 Level 1
430 Ω 50 kΩ
5
6
L-in
L-ch. input
4.5
6
50 kΩ
1/2 VCC
SDC00026BEB
5
AN7396K
I Terminal Equivalent Circuits at VCC = 9 V, Ta = 25°C (continued)
Pin No. Pin name
Equivalent circuit
Description
Voltage (V)
7
8
9
TIM2
TIM1
MD
RMS detector 2
0.6
7
RMS detector 1
0.6
8
Mode DAC output
This parameter
fluctuates with
I2C data.
0.7 to 2.4
10
11
GND
L.T.
Ground
0
L-ch. treble FC set
4.5
3
5.7kΩ
11
1.5kΩ
1.5 kΩ 8 kΩ
12
L.B.
L-ch. bass FC set
4.5
8.64 kΩ
1.36 kΩ
12
SDC00026BEB
6
AN7396K
I Terminal Equivalent Circuits at VCC = 9 V, Ta = 25°C (continued)
Pin No. Pin name
Equivalent circuit
Description
Voltage (V)
13 B.D.
Bass DAC output
This parameter
fluctuates with
I2C data.
250 Ω
9.4 kΩ
13
1.1 to 2.3
250 Ω
1.62 V
14
V.D.
Volume DAC output
This parameter
fluctuates with
I2C data.
3 V
5 kΩ
14
250 Ω
2 to 3.8
11 kΩ
15
16
17
L-out
SCL
SDA
L-ch. output
4.5
15
I2C Bus clock input
1 kΩ
16
I2C Bus data input
1 kΩ
17
SDC00026BEB
7
AN7396K
I Terminal Equivalent Circuits at VCC = 9 V, Ta = 25°C (continued)
Pin No. Pin name
Equivalent circuit
Description
Voltage (V)
18 R-out
R-ch. output
4.5
18
19
T.D.
Treble DAC output
Balance DAC output
R-ch. treble FC set
This parameter
fluctuates with
I2C data.
250 Ω
9.4 kΩ
19
1.1 to 2.3
250 Ω
1.62 V
20
BL.D.
This parameter
fluctuates with
I2C data.
3 V
5 kΩ
20
250 Ω
2 to 3
250 Ω
21
R.T.
4.5
4
5.7 kΩ
1.5kΩ
21
1.5 kΩ 8 kΩ
SDC00026BEB
8
AN7396K
I Terminal Equivalent Circuits at VCC = 9 V, Ta = 25°C (continued)
Pin No. Pin name
Equivalent circuit
Description
Voltage (V)
22 R.B.
R-ch. bass FC set
4.5
8.64 kΩ
1.36 kΩ
22
23
BB
Bass MIX gain adjustment
4.5
23
2.2 kΩ
24
VREF
Reference voltage
stabilization
4.5
50 kΩ
24
50 kΩ
25
R-in
R-ch. input
4.5
25
200 Ω
50 kΩ
1/2 VCC
26
27
28
VCC
None
Power supply
F out
VCC
4.5
F-out
F-in
F in
4.5
SDC00026BEB
9
AN7396K
I Terminal Equivalent Circuits at VCC = 9 V, Ta = 25°C (continued)
Pin No. Pin name
Equivalent circuit
Description
Voltage (V)
29 Space
Space
This parameter
fluctuates with
I2C data.
VCC
VCC
VCC
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 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.
SDC00026BEB
10
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
1000
AGC = Off
"11"
"00"
AGC = On
"01"
"10"
100
Data of sub address 04H
D2 D1
10
1
1 mV
10 mV
100 mV
1 V
10 V
Input level (RMS)
SDC00026BEB
11
AN7396K
I Application Circuit Examples
• Bass reinforcement circuit example
Bass reinforcement
Balance control/
Mute
AGC
Spatializer
Tone control
Volume control
2.2 kΩ
47 nF
47 nF
• Application circuit example of obtaining L+R output instead of bass reinforcement
Bass reinforcement
Balance control/
Mute
AGC
Spatializer
Tone control
Volume control
2.2 kΩ
47 nF
47 nF
SDC00026BEB
12
AN7396K
I New Package Dimensions (Unit: mm)
•
SDIP030-P-0400B (Lead-free package)
26.68 0.30
30
16
1
15
(0.894)
0.50+0.10
-0.05
1.778
10.16
0.70+0.10
+0.10
0.05
-
0.05
-
0.30
0.90+0.10
3° to 15°
-0.05
Seating plane
SDC00026BEB
13
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2001 MAR
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