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7431 Datasheet(PDF) 6 Page - STMicroelectronics

Part # 7431
Description  DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX AND VOICE CANCELLER
PDF  21 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

7431 Datasheet(HTML) 6 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS (refer to the test circuit Tamb =25
°C, VS = 9V, RL = 10KΩ,
Vin = 1Vrms; RG = 600
Ω, all controls flat (G = 0dB), Effect Ctrl = -6dB, MODE = OFF; f = 1KHz
unless otherwise specified)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
SUPPLY
VS
Supply Voltage
7
9
10.2
V
IS
Supply Current
10
18
26
mA
SVR
Ripple Rejection
LCH /RCH out, Mode = OFF
60
80
dB
INPUT STAGE
RIN
Input Resistance
35
50
65
K
Ω
VCL
Clipping Level
THD = 0.3%
2
2.5
Vrms
CRANGE
Control Range
31.5
dB
AVMIN
Min. Attenuation
-1
0
1
dB
AVMAX
Max. Attenuation
31
31.5
32
dB
ASTEP
Step Resolution
0.5
1
dB
VDC
DC Steps
adjacent att. step
-3
0
3
mV
AVO1
Voice Canceler Output 1
LIN =RIN,RIN = ON,
Vmix = 0V FIX, 0dB attenuation
56
7
dB
AVO2
Voice Canceler Output 2
LIN =RIN =0V Vmix =1Vrms FIX,
0dB attenuation
-1
0
1
dB
AVO3
Voice Canceler Output 3
LIN =-RIN,Vmix = 0V FIX,
0dB attenuation
56
7
dB
RLPV
Low Pass Filter Resistance
22.4
32
41.6
K
Ω
RMIX
Input Impedance
70
100
130
K
Ω
BASS CONTROL
Gb
Control Range
Max. Boost/cut
+11.5
+14.0
+16.0
dB
BSTEP
Step Resolution
1
2
3
dB
RB
Internal Feedback Resistance
32
44
56
K
Ω
MIDDLE CONTROL
Gm
Control Range
Max. Boost/cut
+11.5
+14.0
+16.0
dB
MSTEP
Step Resolution
1
2
3
dB
RM
Internal Feedback Resistance
17.5
25
32.5
K
Ω
TREBLE CONTROL
Gt
Control Range
Max. Boost/cut
+13.0
+14.0
+15.0
dB
TSTEP
Step Resolution
1
2
3
dB
EFFECT CONTROL
CRANGE
Control Range
- 21
- 6
dB
SSTEP
Step Resolution
0.5
1
1.5
dB
TDA7430 - TDA7431
6/21



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