TDA7303 Datasheet, PDF (17/20 Pages) STMicroelectronics – Digital controlled stereo audio processor with loudness

TDA7303
Software specification
Table 9.
MSB
Audio switch
LSB
FUNCTION
0
1
0
G1
G0
S2
S1
S0
Audio Switch
0
0
Stereo 1
0
1
Stereo 2
1
0
Stereo 3
1
1
Not allowed
0
Loudness ON
1
Loudness OFF
0
0
+11.25dB
0
1
+7.5dB
1
0
+3.75dB
1
1
0dB
For example to select the stereo 2 input with a gain of +7.5dB LOUDNESS ON the 8bit
string is: 0 1 0 0 1 0 0 1
Table 10.
MSB
0
0
Bass and Treble
1
1
0
1
1
1
LSB
C3
C2
C1
C0
C3
C2
C1
C0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
1
FUNCTION
Bass
Treble
-14
-12
-10
-8
-6
-4
-2
0
1
1
1
1
0
1
1
1
0
2
1
1
0
1
4
1
1
0
0
6
1
0
1
1
8
1
0
1
0
10
1
0
0
1
12
1
0
0
0
14
C3 = Sign
For example Bass at -10dB is obtained by the following 8 bit string: 0 1 1 0 0 0 1 0
17/21