Figure 12-30. Uhf (438-470 Mhz) Synthesizer Schematic Diagram (8486348Z13-C) - Motorola CP150 Service Manual

12-40
PRESC
FN_PRESC
C240
1.3pF
SPI_DATA_OUT
FN_DATA
MOD_IN
FN_MOD
SYNTH_CS
FN_SYNTH_CS
SPI_CLK
FN_CLK
3V
Reference Oscillator
Crystal TCXO
C201 220pF NU
C202 62pF NU
C203 2.7pF NU
C206 NU 0.01uF
R202 150k 47k
R206 NU 100
D201 1SV232 NU
Y201 14R06 NU
Y202 NU 45J68

Figure 12-30. UHF (438-470 MHz) Synthesizer Schematic Diagram (8486348Z13-C)

June, 2005
R230 R247
22K 47K
31 25
NC NC3 WARP
29 16
NC NC2 INDMULT NC
17 28
NC NC1 SFOUT
46
ADAPTSW NC
42 4
CCOMP LOCK
NC
C241 18 45
NC REFSEL IADAPT
100pF 43
IOUT
32
PREIN
27 38
NC SFBASE TEST2 NC
26 37
SFCAP TEST1 NC
39 3
BIAS2 AUX4
NC
40 2
BIAS1 AUX3
1
AUX2 NC
C230
21 48
VBPASS AUX1
2.2uF NC NC
35
NC PVREF
63A27
11
U201
VMULT4 NC
30 12
SFIN VMULT3 NC
7 14
DATA VMULT2
10 15
MODIN VMULT1
9 41
CEX MODOUT
8 19
CLK FREFOUT
24
XTAL2
23
XTAL1
C202
62pF
1%
C207 C208 C209 C210
470pF 470pF 470pF 470pF
327 mV (RF)
C206
NU
L211
FN_3V
390nH
C212
C213 C214
16.8MHz
2.2uF .01uF 1000pF
3
OUT
5V
5V
FN_5V
R212
0
C215 C216
C217
2.2uF 0.1uF 1000pF
SH200 SH201
SHIELD SHIELD
1 1
V_SF
FN_V_SF
4.5 V
C231 C232 C233
1000pF 0.1uF 4.7uF
LOCK
FN_LOCK
LOCK: 3 V
UNLOCK: 0 V
C204
470pF
TRB
FN_TRB
TX: 3 V
RX: 0 V
VCO_MOD
FN_VCO_MOD
67.3 mV (RF)
R205
TP200
100
C201
1
220pF
R246
112.6 mV (RF)
16_8_MHZ
5V 100K
FN_16_8
R202
150K
C205
NU
C211
0.1uF
4
3 1
OUT VCON
16.8MHz
R206
NU
Y202 2
45J68
NU
2.8 V (TYP)
1
IN
4 2 Y201
C203
D201
14R06
2.7pF
3.7%
R227
NU
UHF (438-470 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486348Z13-C)
R245
1.5K
FN_V_STEER
3.5 V to 10 V
R243 C244
.01uF
820
C243
0.1uF
R244
51
TP240
1
C245
1uF
R220 R221
91 91
C220
C221
.01uF
22pF
3
4
C222 K3 A3
2
.01uF 5
3 V
K2 A2
1 6
K1 A1
0 V R223
D220
100
3 V C223
.01uF
0 V
C224
.01uF
3 4
NC K3 A3 NC
2 5
K2 A2
1 6
K1 A1
D221
C228 C227 C226 C225
0.1uF 1000pF 10uF 10uF
V_STEER
C218 C219
2.2uF 0.1uF
6880309N62-C