Power Supplies - Cirrus Logic CRD4297-1 AMR Product Data Book

POWER SUPPLIES

Do not populate U5
U 5
5
N C 2
6
G N D 3
7
G N D 4
AGND
8
VIN
+12VA
+12VD
L2
3
IN
3 1 @ 1 0 0 M H z
C 7 0 C 7 1
+
0.1uF
100uF Z 5 U
Connect AGND to DGND with a 50 mil trace near the 4297
Connect CGND to DGND with a 50 mil trace near the finger
edge of the board.
Figure 13. Power Supplies
M C 7 8 L 0 5 AC D
4
N C 1
S U R FA C E M O U N T
3
P O P U L AT I O N
G N D 2
O P T I O N
2
G N D 1
AGND
1
VO U T
+5VA
P I N I N H O L E
1
P O P U L AT I O N
O U T
O P T I O N
U 4
+
C 7 2
M C 7 8 L 0 5
1 0 U F
AGND
-12VA
-12VD
L1
3 1 @ 1 0 0 M H z
C 7 3 C 7 4
0.1uF
100uF Z 5 U
AGND