Figure 2. Analog Input Filter - Cirrus Logic Crystal CDB4228A Manual

AINL
AINR
10
C80
100pf
R76
4.99k
-12V
C83
C84 R78 47nf GND
10uf 10k
U14A
2
1
3
MC33078
C85
47nf
+12V
+12V
C88
47nf
C89 R85
3
+
10uf 10k
1
2
-
U15A
MC33078
C90
47nf GND
-12V
R87
4.99k
C93
100pf

Figure 2. Analog Input Filter

C81
100pf
R77
10k
R79
10k U14B
6
5
MC33078
GND
GND
U15B
MC33078
GND
5
+
R84
6
-
10k
R86
10k
C92
100pf
CDB4228A
R75
OUTL-
150
C82
2.2nf
R80
7
OUTL+
150
TP86
R81
10k
VA
C86 R82
+
8.25k
C87
10uf
47nf
GND
GND
R83
7
OUTR+
150
C91
2.2nf
R88
OUTR-
150
DS511DB1