Motorola GP344 - Page 400

3-44 UHF2 PCB and Schemtaic Diagrams
G
G
G
G
G
G
G
G
G
240
VCO BOTTOM SHIELDVCO TOP SHIELD
C273
R245
1
3
2
0.1uF
Q241
BFQ67W
C253
1.5pF
SHIELD
SH241
1
.01uF
C297
C281
2.2uF
C276
100pF
1
2
3
L243
RESONATOR
3pF
C244
TX_BASE
16
TX_EMITTER
15
TX_IADJ
1
TX_OUT
10
TX_SWITCH
13
SREFFUB_CCV
14
CIGOL_CCV
18
PRESC_OUT
12
RX_BASE
5
RX_EMITTER
6
RX_IADJ
2
RX_OUT
8
RX_SWITCH
7
SUPER_FLTR
3
TRB_IN
19
U241
COLL_RFIN
4
FLIP_IN
20
SREFFUB_DNG
11
GALF_DNG
917
CIGOL_DNG
R248
50U54
30
C247 C248
100pF
C255
0.1uF
100pF
100pF
C251
C272
4
1
3
1.1pF
Q261
2
C241
100pF
R254
8.2K
R260
1K
CR242
SHIELD
SH242
1
100pF
C246
2.7pF
C245
22nH
L242
L273
18nH
R244
15K
L271
27nH
L241
390nH
390nH
L281
CR243
1
A1 A2
2
CR241
4.3pF
C250
C256
5.1pF
C289
C254
100pF
CR251
3.3pF
270
R252
5.1pF
C252
390nH
L251
R242
120
4
1
3
R251
33
Q260
2
C271
1pF
L282
390nH
10K
R243
7.5K
R253
C285
100pF
C286
1
1P
P2
2
3P
3
0.1uF
L253
RESONATOR
4.3pF
C242
4.3pF
C243
18
Rx_sw
Tx_sw
R241
Rx_sw
Tx_sw
R
X_INJ
AUX3
AUX4
5V
VCTR
L
PRESC
T
X_INJ
VSF
VSF
UHF2 Voltage Controlled Oscillator Schematic Diagram
8471475L01