TDA7348_07 Datasheet, PDF (17/20 Pages) STMicroelectronics – Digitally controlled audio processor

TDA7348
Software specification
Table 12. Volume
MSB
LSB
D7 D6 D5 D4 D3 D2 D1 D0
0
0
0
1
1
0
1
1
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
Function
0.31dB Fine attenuation steps
0dB
-0.31dB
-0.62dB
-0.94dB
1.25dB Coarse attenuation steps
0dB
-1.25dB
-2.5dB
-3.75dB
-5dB
-6.25dB
-7.5dB
-8.75dB
10dB Gain / attenuation steps
20dB
10dB
0dB
-10dB
-20dB
-30dB
-40dB
-50dB
For example to select -47.81dB volume the data byte is: 1 1 0 1 1 0 0 1
Power on RESET: All bytes set to 1 1 1 1 1 1 1 0
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