Figure 8-6. Nuf3577 700–800 Mhz Frequency Generation Unit (Synthesizer) Circuit—1 Of 2 - Motorola ASTRO XTS 5000 Detailed Service Manual

8-8
Vdd3
L201
4
A1
5
2.2uH
A2
6
A3
C203 C204
2.2uF 0.1uF
Vdd5 Vdd3
4
Vdd5 A1
5
Vdd3 A2
6
A3
Vdd3
SCEN
Q201
MUN5212T1
CLK
CSX
DATA
R209
10K
Vdd3 Vdd3
C216
U203
0.1uF AD5320BRT
8
CLK
7
5
SHDN
SSCK SCLK
6
SSFS SYNC
1 2
IN
VOUT OUT
4
DIN
SSTD
1
COM
6
OS
FL200
C221
0.1uF MAX7414
C223
L206
PRESC
6.8nH
68pF
1
C228
3.3pF
2
Figure 8-6. NUF3577 700–800 MHz Frequency Generation Unit (Synthesizer) Circuit—1 of 2
July 21, 2004
C201
D201 0.1uF
3
C202
K1
2
K2
1
K3
0.1uF
C205
Vdd3
0.1uF
L203
D202
C208
3
2.2uH
K1
2
K2
0.1uF C210
1
K3
0.1uF
TP210
Vdd5
8
9
10
7
30
VSF
35
R205
NC
C215 21
NC
22K
40
R204
0.1uF
39
39K
26
27
R216 NC
5 32
C220
10uF
8.2K
18
NC
C243 42
R220
NC
220pF
27K
Not placed 17
NC
29
NC
31
NC
Vdd3
L208
2.2uH
1K
R214
R215
10K
C235
100pF
C207
C206
0.1uF
10uF
Vdd3
L204
2.2uH
Vdd3
C211
0.1uF
C236
23
XTAL1
1000pF
24
XTAL2 NC
19
CLK FREFOUT NC
41
CEX
MODOUT
15
MODIN VMULT1
14
NC
DATA VMULT2
12
SFIN VMULT3
11
VMULT4
PVREF U202
48
VBPASS 63A27 AUX1
1
AUX2
2
BIAS1 AUX3
3
BIAS2 AUX4
37
SFCAP TEST1 NC
38
SFBASE TEST2 NC
PREIN
43
IOUT
45
REFSEL IADAPT
4
CCOMP LOCK
46
ADAPTSW NC
28
NC1 SFOUT
C222
16
NC
NC2 INDMULT
4700pF
25
NC3 WARP
2
L207
1uH
1
VSF
C230 C231 C232
39pF .01uF 10uF
C233
0.1uF
C234
1 3
VCON OUT
.01uF
Y200
45J68
16.8MHz
Schematics, Board Overlays, and Parts Lists: Transceiver (RF) Boards
Vdd5
L202
2.2uH
C209
0.1uF
R202
2K
R201
33K 4 5 C213
R207 L205
1
3
1uH
2 U201 39
1000pF
CLC450
R208
33K
R210
330
C218 C219
C217
R217
.047uF 2000pF
.047uF
2K
R212
120
TP243
C242
C224 C225 C226 C227
0.1uF 0.1uF 0.1uF 0.1uF
0.1uF
R213
10K
C229
100pF
63B81095C52-0
F168
C214
100pF
AUX1
AUX2
AUX3
AUX4
VCTRL
1K
R211
LOCK
6881094C31-D