Motorola GP344 - Page 385

UHF2 PCB and Schematic Diagrams (EPP) 3-29
G
G
G
G
G
G
G
G
G
1.5pF
VCO BOTTOM SHIELDVCO TOP SHIELD
SH241
1
C253
C297
SHIELD
.01uF
C276
100pF
C281
1
2
3
2.2uF
L243
RESONATOR
C244
10
TX_SWITCH
13
SREFFUB_CCV
14
CIGOL_CCV
18
3pF
2
RX_OUT
8
RX_SWITCH
7
SUPER_FLTR
3
TRB_IN
19
TX_BASE
16
TX_EMITTER
15
TX_IADJ
1
TX_OUT
4
FLIP_IN
20
SREFFUB_DNG
11
GALF_DNG
917
CIGOL_DNG
PRESC_OUT
12
RX_BASE
5
RX_EMITTER
6
RX_IADJ
50U54
U241
COLL_RFIN
30
R248
C247 C248
100pF 0.1uF
100pF
C255
C251
100pF
1
3
1.1pF
C272
Q261
2
4
C241
100pF
1
CR242
SHIELD
SH242
100pF
C246
2.7pF
C245
22nH
L242
L273
18nH
R244
15K
L271
27nH
L281
L241
390nH
390nH
CR243
240
R245
0.1uF
C273
CR241
1
A1 A2
2
Q241
BFQ67W
1
3
2
4.3pF
C250
C256
5.1pF
100pF
C289
3.3pF
C254
CR251
R252
C252
270
390nH
L251
5.1pF
R242
120
R251
33
Q260
2
4
1
3
1pF
390nH
C271
R243
L282
R253
10K
100pF
7.5K
C285
0.1uF
C286
L253
RESONATOR
1
1P
P2
2
3P
3
4.3pF
C242
4.3pF
C243
R241
18
R254
8.2K
Rx_sw
Tx_sw
1K
R260
Rx_sw
Tx_sw
RX_INJ
AUX3
AUX4
5V
VCTR
L
PRESC
TX_INJ
VSF
VSF
UHF2 Voltage Controlled Oscillator Schematic Diagram
8416243H04