Cirrus Logic CRD4297-1 AMR Product Data Book page 20

J 6 R 3 2 2.7 K
4
3
C 3 3 0 . 0 6 8 u F
5
2
1
X7R
P H O N O - 1 /8
Connect CGND C 3 5 C 3 6
to the jack
2 2 0pF 2 2 0pF
place close to
AGND
pins 8 and 4
CGND
+5VA
U 1 A
M C 33078D
3
+
1
2
-
R 2 6
+
C 3 1
1 0 U F
68 K
AGND
R 2 8
AGND
10 0K
R 2 9 47K
AGND
R 3 3 6.8 K
+
C 3 7
+5VA
1 0 U F
C 3 0
0 . 1 u F
Z 5 U
AGND
AGND
Figure 17. Mic Pre-Amp
+5VA
R 2 5
47 K
R 2 7
47 K
AGND
+5VA
U 1 B
M C 33078D
5
+
C 3 4 1 u F
7
M I C 1
6
-
X7R
AGND
C 3 8 2 2 0pF
R 3 4 47 K