Figure 8-27. Nld8910B Vhf Frequency Generation Unit (Synthesizer) Circuit - Motorola ASTRO XTS 5000 Detailed Service Manual

Schematics, Board Overlays, and Parts Lists: Transceiver (RF) Boards
V3A
L201
2.2uH
V5A V3A
V5A
V3A
V3B
CLK
CSX
DATA
SCEN
V3B
C216
0.1uF
5
SSI_CLK
SCLK
6
SSI_FS SYNC
4
SSI_DATA DIN
PRESC
TP23
6881094C31-D
C201
D201 0.1uF
4 3 C202
A1 K1
5 2
A2 K2
6 1
A3 K3
0.1uF
C204
C203
0.1uF
2.2uF C205
0.1uF
D202
C208
4 3
A1 K1
5 2
A2 K2
0.1uF
6 1
A3 K3
V3B
TP208 TP209 TP207
TEST_POINT TEST_POINT TEST_POINT
V3B
Q201
47K
47K
U203
AD5320BRT
VDD
R209
1 100K
VOUT
V3B
C215
0.1uF
FL200
MAX7414
TP210
8
CLK
7
SHDN
R218
2 5
IN OUT
8.2K
1 C212
COM
6 220pF
OS
C221
0.1uF
C206 C207
0.1uF
10uF
V3A
L203
2.2uH
C210 V3A
0.1uF
23
V5A
XTAL1
24
XTAL2 NC
8 19
CLK FREFOUT NC
9 41
CEX MODOUT
10 15
MODIN VMULT1
7 14
DATA VMULT2 NC
30 12
SFIN VMULT3
11
TP36
U202 VMULT4
35
NC PVREF 63A27
21 48
NC VBPASS AUX1 NC
R205
1
AUX2 NC
39K
40 2
BIAS1 AUX3
39 3
BIAS2 AUX4 NC
R204
56K 26 37
SFCAP TEST1 NC
27 38
NC SFBASE TEST2 NC
32
PREIN
43
C220
IOUT
10uF 18 45
NC REFSEL IADAPT
42 4
NC CCOMP LOCK
46
ADAPTSW NC
17 28
NC NC1 SFOUT
29 16
NC NC2 INDMULT NC
31 25
NC NC3 WARP
V3A
L208
C231
2.2uH C230
TP299 330pF .01uF
C233
0.1uF
R214
1K
C234
R215
1 3
VCON OUT
10K
.01uF
C235
100pF
Y200
45J68
freq=16.8MHz
V5A
L202
2.2uH
C209
0.1uF
*R202*
V3A
L204 2K
*R201*
2.2uH
56K
4 5
C211
*C237* 1
0.1uF
3
2 U201
CLC450
33pF
*R208*
56K
*R207*
NP
*C238*
NP
TP25
R210
220
C218
C219
C217
R217
2000pF
.047uF .047uF
680
R212
C222
82
4700pF
VSF
C241 C224 C225 C226 C227
0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
L207
1uH
R213
10K
TP21
C229
C232
100pF
10uF
TP19

Figure 8-27. NLD8910B VHF Frequency Generation Unit (Synthesizer) Circuit

8-39
*C213*
L205
F168
1uH
1000pF
*C214*
100pF
AUX3
VCTRL
R211
1K
TP243
C240
0.1uF
LOCK
63B81096C59-O
July 21, 2004