
4-33
18nH
L273
390nH
L281
100pF
C281
240
R245
2.2uF
C276
1.1pF
C272
0.1uF
C273
C286
0.1uF
L271
27nH
Rx_sw
Tx_sw
PRESC
1.0pF
C271
TX_SWITCH
VCC_BUFFERS
VCC_LOGIC
RX_OUT
RX_SWITCH
SUPER_FLTR
TRB_IN
TX_BASE
TX_EMITTER
TX_IADJ
TX_OUT
FLIP_IN
GND_BUFFERS
GND_FLAG
GND_LOGIC
PRESC_OUT
RX_BASE
RX_EMITTER
RX_IADJ
COLL_RFIN
U241
50U54
11 9
17
10
13
8
7
12
2
3
19
16
15
1
4
20
5
6
14
18
1
SHIELD
SH242
1
SH241
SHIELD
VCO TOP SHIELD
VCO BOTTOM SHIELD
R260
1K
C297
.01uF
4
1
3
Q260
2
AUX3
5V
AUX4
1
3
Q261
2
100pF
C289
270
R252
R251
33
100pF
C255
R254
8.2K
1
2
3
3.3pF
L253
RESONATOR
C254
C253
1.8pF
CR251
20pF
C252
C247
100pF
30
R248
0.1uF
C248
7.5K
R253
Tx_sw
100pF
C251
L251
390nH
CR242
L241
CR243
390nH
VCTRL
100pF
C241
2
CR241
1
3
L282
390nH
1
3
2
Q241
BFQ67W
VSF
R244
15K
R243
10K
2.7pF
C245
C244
0.47pF
Rx_sw
1
4.3pF
C242
4.3pF
C243
C250
4.3pF
22nH
L242
100pF
C246
R241
18
R242
120
L243
RESONATOR
2
3
VSF
C285
100pF
TX_INJ
RX_INJ
4
47K
47K
4.7K
47K
4.7K
47K
10K
10K
DD
4.6V
2V
4V@450MHz
10V@527MHz
4.6V
ZMY0130413-O
Figure 4-29. UHF (450-527 MHz) Voltage Controlled Oscillator Schematic Diagram
Содержание PRO3150
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