TDA7429L Datasheet, PDF (8/16 Pages) STMicroelectronics – 3 BAND EQUALIZER AUDIO PROCESSOR WITH SUBWOOFER CONTROL

TDA7429L
Table 5. Function Selection
The first byte (subaddress)
MSB
LSB
D7
D6
D5
D4
D3
D2
D1
D0
SUBADDRESS
B¹
X²
X
X
0
0
0
0 INPUT ATTENUATION
B
X
X
X
0
0
0
1 CONTROL OUT L+R &
SUBWOOFER
B
X
X
X
0
0
1
0 NOT USED
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
1 AUX ATTENUATION ”L”
B
X
X
X
1
0
0
0 AUX ATTENUATION”R”
B
X
X
X
1
0
0
1 INPUT MULTIPLEXER, & AUX OUT
<1> B = 1 incremental bus; active
B = 0 no incremental bus;
<2> X = indifferent 0,1
Table 6. Input Attenuation Selection
MSB
LSB
D7
D6
D5
D4
D3
D2
D1
D0
X
0
0
0
X
0
0
1
X
0
1
0
X
0
1
1
X
1
0
0
X
1
0
1
X
1
1
0
X
1
1
1
X
0
0
0
X
0
0
1
X
0
1
0
X
0
1
1
X
1
0
0
X
1
0
1
X
1
1
0
X
1
1
1
INPUT ATTENUATION = 0 ~ -31.5dB
D7
D6
D5
D4
D3
D2
D1
D0
X
0
INPUT ATTENUATION
0.5 dB STEPS
0
-0.5
-1
-1.5
-2
-2.5
-3
-3.5
4 dB STEPS
0
-4
-8
-12
-16
-20
-24
-28
L+R OUTPUT SWITCH
(L+R) OUTPUT PIN ACTIVE
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