Motorola ASTRO XTS 5000 - Figure 8-20. NLD8910 H VHF DC Power Circuits

8-32 Schematics, Board Overlays, and Parts Lists: Transceiver (RF) Boards
November 16, 2006 6881094C31-E
Figure 8-20. NLD8910H VHF DC Power Circuits
BATTERY SENSE
5V Analog Supply
3V Digital Supply
3V Analog Supply
3V Misc Supply
Transmit B+
Fused B+
C6
R1
100K
1uF
U3
LP3985
BYPASS
4
GND
2
3
VEN
VIN
1
VOUT
5
E1
D2
V38
1uF
C18
L1
47uH
V38
1uF
C2
D3
.01uF
NC
C10
10uF
C3
C5
10uF
C21
10uF
47K
47K
E8
E4
V38
2A
32V
F901
2
3
1
100uH
L2
20V
VR1
E7
C1
.01uF
NC
E6
C14
1uF
C9
1uF
Q503
C12
330pF
V5A
.01uF
C7
1uF
C20
1uF
D1
C13
.01uF
D4
C4
VOUT
5
Q2
U5
LP3985
BYPASS
4
GND
2
VEN
3
VIN
1
ERROR
7
GND
3
INPUT
4
NC
2
OUTPUT
5
SENSE
6
SHUTDOWN
8
U1
LP2989
BYPASS
1
5
VOUT
.01uF
C19
LP3985
U2
4
BYPASS
2
GND
3
VEN
1
VIN
Q1
NC
C11
1uF
C8
E5
2
3
1
1uF
ERR
XB+
V3B
BATT
20V
VR2
BS
RAWB+
FB+
V3D
V3A
VSW1
SB+
V5A
63B81096C58-O