Motorola CP040 Detailed Service Manual page 178

3-10
PRESC
FN_PRESC
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
VHF2 (146-174 MHz) Synthesizer Schematic Diagram
R230
R247
200K
270K
31 25
NC NC3 WARP
29 16
NC NC2 INDMULT NC
17 28
NC NC1 SFOUT
46
ADAPTSW NC
42 4
NC CCOMP LOCK
C241 18 45
NC REFSEL IADAPT
1200pF 43
IOUT
32
PREIN
27 38
NC SFBASE TEST2 NC
26 37
SFCAP TEST1 NC
R248
51
39 3
BIAS2 AUX4 NC
40 2
BIAS1 AUX3
1
U201 AUX2 NC
C230 21 48
NC VBPASS AUX1 NC
2.2uF
35
NC PVREF
63A27
11
VMULT4 NC
30 12
SFIN VMULT3 NC
7 14
DATA VMULT2
10 15
MODIN VMULT1
9 41
CEX MODOUT
8 19
CLK FREFOUT
44 mV (RF)
24
XTAL2
23
XTAL1
C202
62pF
1%
C207 C208 C209 C210
470pF 470pF 470pF 470pF
205 mV (RF)
C206
NU
L211
FN_3V
560nH
C212
C213 C214
2.2uF
.01uF 1000pF
3
OUT
5V
5V
R212
FN_5V
0
C216
C215 C217
2.2uF 0.1uF 1000pF
SH200 SH201
SHIELD SHIELD
1 1
V_SF
FN_V_SF 4.5V
C231 C232 C233
1000pF 0.1uF 4.7uF
LOCK
FN_LOCK
LOCK: 3V
UNLOCK: 0V
C204
470pF
TRB
FN_TRB TX: 3V
RX: 0V
VCO_MOD
FN_VCO_MOD
R205
TP200
100
C201
1
220pF
R246
107 mV (RF) 16_8_MHZ
100K
5V
FN_16_8
R202
150K
C205
NU
C211
0.1uF
4
3 1
OUT VCON
16.8MHz
R206
NU
Y202 2
45J68
NU
16.8MHz
2.4 V (TYP)
1
IN
4 2 Y201
C203
14R06 D201
2.7pF
1SV232
3.7%
R227
150K
VHF2 PCB 8486342Z13-C Schematic Diagrams
R245 FN_V_STEER
1.5K
C243 R243 C244
0.1uF 2K
1200pF
R244
51
TP240
1
C245
1uF
R220 R221
150 150
C220 C221
.01uF
22pF
3
4
C222 K3 A3
2
.01uF 5
K2 A2
3V 1
6
K1 A1
0V
D220
3V
C223
.01uF
0V
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
3.0V to 8.0V
R223
100
C218 C219
2.2uF 0.1uF