Manual
BA3131FS
Standard ICs
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Application example
20
1
19
2
18
3
17
4
16
5
15
6
14
7
13
8
12
9
11
10
Aamp: Gv = 20dB
Bamp: Gv = 10dB
Camp: Gv = 0dB
OUT2
Vcc = 8V
C7 C8 C9 C10
100µ 0.022µ 22µ 100µ
BA3131FS
R14
R16
R12
1k
R6
47k
R10
1k
R4
47k
R8
1k
R2
47k
R5
R15
R11
47k
R9
1k
1k
R3
47k
R7
1k
R1
47k
10k
R13
3.3k
10k
3.3k
3.3µ
3.3µ
3.3µ
C6
C5
C4
IN2C
IN2B
IN2A
3.3µ
C3
C2
C1
IN1A
IN1B
IN1C
3.3µ
3.3µ
SW1 SW2
µCOM.
OUT1
Fig.13