Motorola ATS 3000

9.5-16 900MHz Schematics, Board Overlays, and Parts Lists
February 14, 2012 6816985H01-F
Figure 9.5-15. PMLF4036A Frequency Generation Unit (FGU) Schematic – Sheet 2 of 3
VCO Select Line
0V for RX
VCO TOP SHIELD VCO BOTTOM SHIELD
DNP
DNP
Steering Line
2 to 11 VDC
TX BUFFER
C280
2.0pF
R236
R235
22
18
20K
IF209
R231
C262
1pF
R230
20K
24K
R229
18K
R239
150nH
L210
2
1
39pF
C271
2.4pF
C277
R243
2
1
C273
30K
Q215
1.8pF
Q213
L216
100nH
18nH
L221
R241
0
L219
150nH
R238
150
R233
220
C276
39pF
150nH
2
1
100nH
L218
L212
Q212
Q217
2.4pF
C264
C270
1pF
39pF
C266
330
R220
33pF
C231
2.2pF
C263
.01uF
C245
R261
51K
39pF
C274
39pF
C278
0
L211
SHIELD
SH205
1
TX_SWITCH
13
SREFFU
B_
CCV
14
CIGOL_CCV
18
33
R225
RX_OUT
8
RX_SWITCH
7
SUPER_FLTR
3
TRB_IN
19
TX_BASE
16
TX_EMITTER
15
TX_IADJ
1
TX_OUT
10
FLIP_IN
20
SR
EFF
UB_D
N
G
11
GALF_DNG
917
CIG
OL
_DNG
PRESC_OUT
12
RX_BASE
5
RX_EMITTER
6
RX_IADJ
2
U250
50U54
COLL_RFIN
4
C297
39pF
C253
39pF
82
R289
2.2pF
0MHz
RESONATOR
Y202
1
2
C272
39pF
C230
D211
18K
R234
39pF
C251
100nH
L215
27nH
L220
1
0.10uF
C224
39pF
C296
SHIELD
SH203
Y203
26C17
1110MHz
51K
R227
39pF
C267
0
R298
5.6K
R262
C269
2.2pF
39pF
C256
R232
51K
18nH
L230
0
R297
Q216
2
3
1
2.2pF
NE68519
1.5pF
C268
L217
100nH
C279
240
R237
C250
2.2pF
C260
39pF
750
R222
1
2
IF210
D212
Q214
33
R292
C265
1.8pF
39pF
C261
1.8pF
C275
Q218
51K
R244
.01uF
C247
AUX2
AUX3
.01uF
C246
5V
RX_LO
TX_INJ
VSF
5V
VCTRL
AUX4
VSF
VSF
VSF
PRESC