TDA7430 Datasheet, PDF (11/21 Pages) STMicroelectronics – DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX AND VOICE CANCELLER

TDA7430 - TDA7431
DATA BYTES
Address = 80(HEX): ADDR open; 82 (HEX): need to connect supply
FUNCTION SELECTION:
The first byte (subaddress)
MSB
LSB
SUBADDRESS
D7
D6
D5
D4
D3
D2
D1
D0
B
X
X
X
0
0
0
0
INPUT ATTENUATION
B
X
X
X
0
0
0
1
SURROUND & OUT & EFFECT
CONTROL
B
X
X
X
0
0
1
0
PHASE RESISTOR
B
X
X
X
0
0
1
1
BASS & NATURAL BASE
B
X
X
X
0
1
0
0
MIDDLE & TREBLE
B
X
X
X
0
1
0
1
SPEAKER ATTENUATION ”L”
B
X
X
X
0
1
1
0
SPEAKER ATTENUATION ”R”
B
X
X
X
0
1
1
1
RECORD ATTENUATION ”L”
B
X
X
X
1
0
0
0
RECORD ATTENUATION”R”
B
X
X
X
1
0
0
1
INPUT MULTIPLEXER, VOICE
CANCELLER & REC OUT
B = 1 incremental bus; active
B = 0 no incremental bus;
X = indifferent 0,1
INPUT ATTENUATION SELECTION
MSB
LSB
INPUT ATTENUATION
D7
D6
D5
D4
D3
D2
D1
D0
0.5 dB STEPS
0
0
0
0
0
0
1
-0.5
0
1
0
-1
0
1
1
-1.5
1
0
0
-2
1
0
1
-2.5
1
1
0
-3
1
1
1
-3.5
0
0
0
4 dB STEPS
0
0
0
1
-4
0
1
0
-8
0
1
1
-12
1
0
0
-16
1
0
1
-20
1
1
0
-24
1
1
1
-28
INPUT ATTENUATION = 0 ∼ -31.5dB
D7
D6
D5
D4
D3
D2
D1
D0
REAR SWITCH
0
REARIN, REAROUT PIN
ACTIVE
1
NO REARIN, REAROUT PIN
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