Cirrus-logic CRD4299-1 AVR Manual de usuario Pagina 18

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CRD4299-1 AMR
18 DS319RD1A1
POWER SUPPLIES
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.
SURFACE MOUNT
POPULATION
OPTION
PIN IN HOLE
POPULATION
OPTION
Do not populate U5
+12VD
+12VA
AGND
+5VA
AGNDAGND
-12VA
-12VD
AGND
U5
MC78L05ACD
18
2
36
7
5 4
VOUTVIN
GND1
GND2GND3
GND4
NC2 NC1
C71
0.1uF
Z5U
L2
31@100MHz
U4
MC78L05
3
2
1
IN
GND
OUT
+
C70
100uF
ELEC
+
C72
10uF
ELEC
L1
31@100MHz
C74
0.1uF
Z5U
+
C73
100uF
ELEC
Figure 13. Power Supplies
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