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TDA7404DTR Datasheet, PDF (28/35 Pages) STMicroelectronics – Car radio signal processor
◁
I2C bus interface
TDA7404
Table 13. Speaker attenuator left front
MSB
D7
D6
D5
D4
D3
D2
D1
0
0
0
0
0
0
0
0
0
0
:
:
:
:
:
0
1
0
1
1
0
1
1
0
0
0
1
1
0
0
0
1
1
0
1
0
1
1
0
1
0
1
1
1
0
0
1
1
1
0
0
1
1
1
1
0
1
1
1
1
1
X
X
X
X
00
01
10
11
Table 14. Speaker attenuator right front
MSB
D7
D6
D5
D4
D3
D2
D1
0
0
0
0
0
0
0
0
0
0
:
:
:
:
:
0
1
0
1
1
0
1
1
0
0
0
1
1
0
0
0
1
1
0
1
0
1
1
0
1
0
1
1
1
0
0
1
1
1
0
0
1
1
1
1
0
1
1
1
1
X
X
1
X
X
X
X
LSB
D0
Function
Attenuation
0 0 dB
1 -1 dB
::
1 -23 dB
0 -24.5 dB
1 -26 dB
0 -28 dB
1 -30 dB
0 -32 dB
1 -35 dB
0 -40 dB
1 -50 dB
X Speaker Mute
Bass Center-Frequency
60 Hz
80 Hz
100 Hz
200 Hz
LSB
D0
Function
Attenuation
0 0 dB
1 -1 dB
::
1 -23 dB
0 -24.5 dB
1 -26 dB
0 -28 dB
1 -30 dB
0 -32 dB
1 -35 dB
0 -40 dB
1 -50 dB
X Speaker Mute
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