Motorola ATS 3000

UHF2 Schematics, Board Overlays, and Parts Lists 9.3-27
6816985H01-F February 14, 2012
Figure 9.3-26. PMLE4427A VCO Schematic
NU
NU
NU
9.31nH
NU
NU
390nH
L251
20
L254
390nH
R293
R258
7.5
100pF
C295
L275
0.10uF
4.6VSF_OUT
4.6VSF_VCO
22nH
C251 22pF
L276
4.6VSF_VCO
C277
41
CIGOL_CCV
81
L255
11.87nH
7
SUPER_FLTR
3
19
TRB_IN
TX_BASE
16
15
TX_EMITTER
TX_IADJ
1
TX_OUT
10
TX_SWITCH
13
SREFFUB_CCV
11
GALF_DNG
9
CIGOL_DNG
71
PRESC_OUT
12
5
RX_BASE
RX_EMITTER
6
RX_IADJ
2
RX_OUT
8
RX_SWITCH
U250COLL_RFIN
4
FLIP_IN
20
SREFFUB_DNG
0
R251
50U56
VCOBIC
R296
0
30
C255
10pF
390nH
R271
10K
L273
D251
R252
D254 D253
C292
100pF
R255
1K
C282
4.3pF
0
R257
R270
120
R254
270K
D271
C266
R291
30
C262
L274
18nH
4.6VSF_VCO
100pF
C296
L259
47nH
2.0pF
C263
R266
330
TP299
TEST_POINT
1
330
R294
100pF
200
R272
390nH
C250
C293
100pF
L250
Q251
1.2pF
R298
C267
390nH
L252
C257
0.1uF
10K
R295
C271
2.0pF
4.6VSF_VCO
C256
11pF
R275
200
C259
11pF
C278
56pF
R276
10K
330pF
C286
27nH
L258
2.0pF
C254
C294
Q250
TEST_POINT
TP291
1
R278
12K
4.3pF
L271
C281
C276
390nH
4.6VSF_OUT
5.6pF
C273
4.7pF
D270
R259
330
R274
0
4.6VSF_VCO
20
C280
R299
4.3pF
D252
R253
15K
TP297
TEST_POINT
1
R297
L270
1
390nH
TP296
TEST_POINT
D273
L266
68nH
C272
4.3pF
C261
100pF
D272
200
R273
C253
2.7pF
330pF
C258
4.6VSF_VCO
Tx_SW
TRB
Rx_SW
RX_LO_IN
TXRF_OUT
Rx_SW
Tx_SW
PRES_IN
VCTRL