TDA7318 Datasheet, PDF (11/14 Pages) STMicroelectronics – DIGITAL CONTROLLED STEREO AUDIO PROCESSOR

TDA7318
Audio Switch
MSB
LSB
0
1
0
G1
G0
S2
S1
S0
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
1
1
0
1
1
For example to select the stereo 2 input with a gain of +12.5dB the 8bit string is:
01001001
FUNCTION
Audio Switch
Stereo 1
Stereo 2
Stereo 3
Stereo 4
Not allowed
Not allowed
Not allowed
Not allowed
+18.75dB
+12.5dB
+6.25dB
0dB
Bass and Treble
0
1
1
0
C3
C2
C1
0
1
1
1
C3
C2
C1
0
0
0
0
0
0
0
0
1
0
0
1
0
1
0
0
1
0
0
1
1
0
1
1
1
1
1
1
1
1
1
1
0
1
1
0
1
0
1
1
0
1
1
0
0
1
0
0
C3 = Sign
For example Bass at -10dB is obtained by the following 8 bit string:
01100010
C0
Bass
C0
Treble
0
-14
1
-12
0
-10
1
-8
0
-6
1
-4
0
-2
1
0
1
0
0
2
1
4
0
6
1
8
0
10
1
12
0
14
11/14