Uhf2 (438-470 Mhz) 25-40 W Synthesiser And Vco (Sht 1 Of 2) - Motorola CM200 Service Manual

4-38
5V
3V
SPI_CLK
SYNTH_CS
MOD_IN
SPI_MOSI
C2046 C2048 C2047
120.p
120.p
LVFRACN Shield

UHF2 (438-470 MHz) 25-40 W Synthesiser and VCO (Sht 1 of 2)

5V
L217
390nH
C2000
C2015 C2034
2.2uF
120.p
0.1uF
3V
L200
390nH
C2005 C2023 C2035
120.p
2.2uF 10n
C2198
1.n
XTAL1
XTAL2
8
CLK FREFOUT
9
CEX MODOUT
10
MODIN VMULT1
7
DATA VMULT2
30
SFIN VMULT3
VMULT4
U200
35
PVREF FRACN_63A27
21
VBPASS AUX1
AUX2
40
BIAS1 AUX3
39
BIAS2 AUX4
26
SFCAP TEST1
27
SFBASE TEST2
32
PREIN
IOUT
C2045 C2006 18
REFSEL IADAPT
120.p 2.2uF 42
120.p
CCOMP LOCK
ADAPTSW
17
NC1 SFOUT
29
NC2 INDMULT
31
NC3 WARP
R200
R206
100.K
120.K
SH200
SHIELD
1
V_SF
C2002
C2033 C2014
10uF
0.1uF
120.p
2311049A72
C2052
120.p
L210
47.n
R208
100.K
C2067
5.1p
R225
C2026
150.
C2055
22p
R226
150.
C2027
23
C2001
24
C2036 4.7uF
120.p
19
16.8MHZ
41
R229
VCO_MOD
100.
C2049
15
120.p
14
DNP
12
11
48
1
2
3
C2129
120.p
37
38
43
45
4
SYNTH_LOCK
46
28
16 C2050
25 120.p
TEST_POINT
1
R209
TP201
100.K
3V
R205
R207
0.
C2051
150.K
220p
C2054
62.00p
C2020 5V DNP
R204
100n
0.
C2017
0.1uF
DNP
4
C2053
120.p
DNP
3 1
OUT VCON
R210
DNP
100.K
Y201
14R06
Y200 2
FREQ 45J68
DNP
16.8MHz
1 3
IN OUT
C2072
D202
2.7p
C2068
5.1p
UHF 25-40 W Band 2 PCB 8486577Z03 / Schematics
10n
K3 A3
C2025
R228
10n
K2 A2 100.
K1 A1
D200
C2016 C2004
C2024
0.1uF 2.2uF
10n
K3 A3
10n
K2 A2
NC K1 A1 NC
D201
R202
0.
C2013
DNP
0.1uF
R224
1.5K
L205
C2074
1uH
100.n R217
C2028
1.3K 2200pF
R234
39. TP200
TEST_POINT
1
C2078
1uF