User Guide

5-2Schematic Diagrams
2.2UFC55
2.2UF
ground
RFGND
ground
ground
C52
C44
220UF/6.3V
RFGND
C66
10NF
5
_LBO
3
_SHDN
6
B1
PAS614L-VL3
7
BATT
4
CLSEL FB
1
8
GND
2
LBI LX
9
OUT
10
REF
C257
RFGND
MAX1676EUB-T
U12
4 5
VOUT
100NF
ground
U16
LP2980AIM5X-3.3
GND
2
NC
100NF C255
R50 200
C60 2.2UF
ground
U14
BYPASS
4
2
GND
3
ON/OFF
1
VIN VOUT
5
GND
2
ON/OFF
3
VIN
1
5
VOUT
LP2982AIM5X-3.0
U15
LP2982AIM5X-3.0
4
BYPASS
10NF
C46
C56 2.2UF
10UF/10V
C65 C73
10UF/10V
C69
10NF
C51
10UF/10V
RFGND
R304 0
RFGND
10UF/10V
C61
ground
AGND
RFGND
RFGND
ground
ZD2
MCL4154
VOUT
RFGND
10NF
C74
U17
LP2982AIM5X-3.0
4
BYPASS
GND
2
ON/OFF
3
VIN
1
5
4
BYPASS
GND
2
ON/OFF
3
VIN
1
5
VOUT
AGND
ground
U18
LP2982AIM5X-3.0
RFGND
RFGND
2.2UFC59
DGND
10UF/10V
C49
L1
DO1608C-473LP
RFGND
AGND
10UF/10V
C63
47uH
D4
PRLL5819
10UF/10V
C50
100NF
ground
220UF/6.3V
C67
ground
C256
2
4
NC
3
ON/OFF
1
VIN
5
VOUT
ground
U13
LP2981AIM5X-3.0
GND
C58
RFGND
C258 100NF C259
1UF
10NF
ground
100NF
C45
RFGND
2.2UFC72
RFGND RFGND
NC
C281
DGND
DGND
AGND RFGND
C260 100NF
U20
BYPASS
4
2
GND
3
ON/OFF
1
VIN VOUT
5
RFGND
RFGND
LP2982AIM5X-3.0
RTC_3V3+VBATT
AVCON
NCR303
VCTCXO_CONT
3VBRIGHT 3VSYNTH 3VTX
VCC AVCC
XVCC
POWER
+3VRTC
VSYNEN
5-2 PSU Schematic