TDA7406 Datasheet, PDF (50/64 Pages) STMicroelectronics – Car radio signal processor

I2C bus interface
TDA7406
Table 15. Subwoofer Configuration / Spectrum Analyzer / HighPass (12)
MSB
LSB
D₇ D₆ D₅ D₄ D₃ D₂ D₁ D₀
FUNCTION
Subwoofer Filter
0 0 off
0 1 80Hz
1 0 120Hz
1 1 160Hz
00
01
10
11
Subwoofer Coupling
AC using SW_In pin
AC using Mix_InR pins
AC using SW_In pin
DC
Spectrum Analyzer Q-Factor
0
3.5
1
1.8
High Pass Enable
0
Filter off
1
Filter on
00
01
10
11
High Pass Cut-Off-Frequency
90Hz
135Hz
180Hz
215Hz
Table 16. Configuration Audioprocessor I (13)
MSB
LSB
D₇ D₆ D₅ D₄ D₃ D₂ D₁ D₀
FUNCTION
CDC Input Mode
0 single ended
1 pseudo differential
CDC Input Gain
0
-6 dB
1
0 dB
SoftStep Volume
0
off
1
on
00
01
10
11
SoftStep Time
320µs
1.28ms
5.12ms
20.4ms
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