TDA7406 Datasheet, PDF (53/64 Pages) STMicroelectronics – Car radio signal processor

TDA7406
I2C bus interface
Note:
Table 20. Testing Audioprocessor (21)
MSB
LSB
D₇ D₆ D₅ D₄ D₃ D₂ D₁ D₀
FUNCTION
Audioprocessor Testmode
0 off
1 on
0000
1000
0001
1001
0010
1010
X0 1 1
0100
1100
X1 0 1
X1 1 0
X1 1 1
Test-Multiplexer
Spectrum Analyzer Filter 62Hz
Spectrum Analyzer Filter 157Hz
Spectrum Analyzer Filter 400Hz
Spectrum Analyzer Filter 1kHz
Spectrum Analyzer Filter 2.51kHz
Spectrum Analyzer Filter 6.34kHz
Spectrum Analyzer Filter 16kHz
Not Allowed
not used
200kHz Oscillator
NB-Hold
internal Reference
Clock
0
external
1
internal
AZ Function
0
off
1
on
SC-Clock
0
Fast Mode
1
Normal Mode
This byte is used for testing or evaluation purposes only and must not set to other values
than “11111110” in the application!
Table 21. Stereodecoder (22)
MSB
D₇ D₆ D₅ D₄ D₃ D₂
0
0
1
1
0
1
LSB
D₁ D₀
FUNCTION
0 STD Unmuted
1 STD Muted
0
IN-Gain 11dB
1
IN-Gain 8.5dB
0
IN-Gain 6dB
1
IN-Gain 3.5dB
Stereodecoder Input
AM
MPX
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