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參數(shù)資料
| 型號： | 7431 |
| 廠商： | 意法半導體 |
| 英文描述： | DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX AND VOICE CANCELLER |
| 中文描述： | 數(shù)控式環(huán)繞聲矩陣和消音器的音頻處理器 |
| 文件頁數(shù)： | 6/21頁 |
| 文件大?。?/td> | 168K |
| 代理商： | 7431 |
ELECTRICALCHARACTERISTICS
(refer to the test circuit T
amb
= 25
°
C, V
S
= 9V,R
L
= 10K
,
V
in
= 1Vrms;R
G
= 600
, all controlsflat (G = 0dB), EffectCtrl = -6dB, MODE = OFF; f = 1KHz
unless otherwisespecified)
Symbol
SUPPLY
Parameter
Test Condition
Min.
Typ.
Max.
Unit
V
S
I
S
SVR
Supply Voltage
Supply Current
Ripple Rejection
7
10
60
9
10.2
26
V
18
80
mA
dB
L
CH
/ R
CH out
, Mode = OFF
INPUT STAGE
R
IN
V
CL
C
RANGE
A
VMIN
A
VMAX
A
STEP
V
DC
A
VO1
Input Resistance
Clipping Level
Control Range
Min. Attenuation
Max. Attenuation
Step Resolution
DC Steps
Voice Canceler Output 1
35
2
50
2.5
31.5
0
31.5
0.5
0
6
65
K
Vrms
dB
dB
dB
dB
mV
dB
THD = 0.3%
-1
31
1
32
1
3
7
adjacent att. step
L
IN
= R
IN
, R
IN
= ON,
V
mix
= 0V FIX, 0dB attenuation
L
IN
= R
IN
= 0V V
mix
= 1V
rms
FIX,
0dB attenuation
L
IN
= -R
IN
, V
mix
= 0V FIX,
0dB attenuation
-3
5
A
VO2
Voice Canceler Output 2
-1
0
1
dB
A
VO3
Voice Canceler Output 3
5
6
7
dB
R
LPV
R
MIX
Low Pass Filter Resistance
Input Impedance
22.4
70
32
100
41.6
130
K
K
BASSCONTROL
Gb
B
STEP
R
B
Control Range
Step Resolution
Internal Feedback Resistance
Max. Boost/cut
+11.5
1
32
+14.0
2
44
+16.0
3
56
dB
dB
K
MIDDLE CONTROL
Gm
M
STEP
R
M
Control Range
Step Resolution
Internal Feedback Resistance
Max. Boost/cut
+11.5
1
17.5
+14.0
2
25
+16.0
3
32.5
dB
dB
K
TREBLE CONTROL
Gt
T
STEP
Control Range
Step Resolution
Max. Boost/cut
+13.0
1
+14.0
2
+15.0
3
dB
dB
EFFECT CONTROL
C
RANGE
S
STEP
Control Range
Step Resolution
- 21
0.5
- 6
1.5
dB
dB
1
TDA7430 - TDA7431
6/21
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