Microchip Technology MCP3903, User Manual

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Schematics and Layouts
©
2011 Microchip Technology Inc. DS51994A-page 21
A.7 SCHEMATIC - POWER
Rev
6
A
B
1
Size
Title
D
Eng:
3 4 2 1
A
B
4 3 2 1
3/18/10
6
Date
POW
E
R.SCHDOC
C
Sheet Draw
n
by
:
of
Rev
C
D
B.Popescu
A.Hapenciuc
Description
Filen
a
me:
B
Date:
M
6
Initial
Design
4
GNDA
+9V
GNDA
USB_+5V
USB
GNDA
+3.3V
+5V
GNDA
GNDA
GNDA
100 R58
+3.3 V
POWE
R
GNDA
1
P11A
EXT
+5V
GNDA
GNDA
3 2 1
J1
RAPC722 +9V
IN
10UF C4
2
P11B
100NF
C3
GNDA
POWER
+9V
IN
GNDA
100NF C5
POWE
R
BLUE
D5
GM1B55250AC
GNDA
GNDA
GND TP
1
PJ-202-30
4.7UF C2
GND
1
IN
3
OUT
2
U3
LM1117-3.3
10UF C1
EXT
+5V
POWE
R
A
K
D3
M
B
R0
520LT1
1 3 5
2 4 6
JP3
HDR3X2
10UH
L1
4.7UF C6
M
C
P3903
Eval
Board
for
16-bit
MCU
3/31/10
GND
1
IN
3
OUT
2
U1
LM1117-5.0
EXT_+5V