Figure 8-15. Nuf3577J 700-800 Mhz Frequency Generation Unit (Synthesizer) Circuit - Motorola ASTRO XTS 5000 Detailed Service Manual

8-22
Vdd3
L201
2.2uH
C203 C204
2.2uF
Vdd5 Vdd3
Vdd5
Vdd3
Vdd3
SCEN
Q201
MUN5212T1
CLK
CSX
DATA
R209
10K
Vdd3
C216
U203
0.1uF AD5320BRT
8
5 7
SSCK SCLK
6
SSFS SYNC
1 2
VOUT
4
SSTD DIN
1
6
C221
0.1uF
C223
L206
PRESC
6.8nH
68pF
1
C228
3.3pF
2
Figure 8-15. NUF3577J 700–800 MHz Frequency Generation Unit (Synthesizer) Circuit
November 16, 2006
C201
0.1uF
D201
4 3 C202
A1 K1
5 2
A2 K2
6 1
A3 K3
0.1uF
0.1uF
C205
Vdd3
0.1uF
L203
D202
C208
4 3
2.2uH
A1 K1
5 2
A2 K2
0.1uF C212 C210
6 1
A3 K3 33pF 0.1uF
TP210
TEST_POINT
Vdd5
VSF
Vdd3
R205
NC
C215
NC
22K
R204
0.1uF
39K
CLK
SHDN
R216 NC
5
IN OUT
C220
10uF
8.2K
COM NC
C243
R220
OS 220pF NC
27K
FL200 delete
NC
MAX7414
NC
NC
Vdd3
L208
2.2uH
1K
R214
R215
10K
C206 C207
10uF
0.1uF
Vdd3
L204
2.2uH
Vdd3
C211
0.1uF
R201
33K
C236
23
XTAL1
1000pF
24
XTAL2 NC
R208
8 19
33K
CLK FREFOUT NC
9 41
CEX MODOUT
10 15
MODIN VMULT1
7 14
DATA VMULT2 NC
30 12
SFIN VMULT3
11
VMULT4
U202
35
PVREF 63A27
21 48
VBPASS AUX1
1
AUX2
40 2
BIAS1 AUX3
39 3
BIAS2 AUX4
26 37
SFCAP TEST1 NC
27 38
SFBASE TEST2 NC
32
PREIN
43
R217
IOUT
18 45
2K
REFSEL IADAPT
42 4
CCOMP LOCK
46
ADAPTSW NC
17 28
NC1 SFOUT
C222
29 16
INDMULT
NC2 NC 4700pF
31 25
NC3 WARP
2
L207
1uH
R213
1
VSF
10K
C230 C231 C232
39pF .01uF 10uF
C233
0.1uF
C234
1 3
VCON OUT
.01uF
C235
100pF
Y200
45J68
16.8MHz
Schematics, Board Overlays, and Parts Lists: Transceiver (RF) Boards
7/800_FGU_d02_a1
Vdd5
L202
2.2uH
C209
0.1uF
R202
2K
4 5
C213
R207 L205
1
3
1uH
2 U201 39 1000pF
LMH6723 C214 C237
100pF 33pF
R218
1K
C238
20pF
AUX1
AUX2
AUX3
AUX4
R210
VCTRL
330
C217 C218 C219
1K
.047uF .047uF 2000pF
R211
R212
120
TP243
C224 C225 C226 C227 C242
0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
LOCK
C229
100pF
Vadim Dubov
Vadim Dubov
F168
XTS 5000 Transceiver
7/800 (762 -869 MHz)
FGU Sheet 1
6881094C31-E