Motorola GP Series Detailed Service Manual page 224

3-80
U210
TC7ST04FU
1 4
NC
3
VCC
GND
2
C258
.01uF
C259
.01uF
C230 C229 C228
4.7uF
100pF 1000pF
CLK
CSX
MODIN
C210 C212
100pF 100pF
L261
39nH
PRESC
VSF
UHF (403-470 MHz) Synthesizer Schematic Diagram
U211
C296
TC7ST04FU C265 C257
0.1uF
100pF
NU
1 4
NC
5
3 GND 5
VCC
2
5V
(SOURCE)
CR201
3 K3 4
A3
L202
2 K2 A2 5
2.2uH
A1 6
1
K1
C292
0.1uF
C219
0.22uF
C298
0.1uF
XTAL1
XTAL2
8 FREFOUT 19
9 CLK
MODOUT 41
CEX
10 VMULT1 15
MODIN
7 VMULT2 14
DATA DATA
30
VMULT3
SFIN
C214 VMULT4 11
C211
R201
100pF 35
100pF
PVREF
82K
21 AUX1 48
VBPASS
AUX2 1
R202 40 AUX3 2
BIAS1
100K
39 AUX4 3
U201
BIAS2
LVFractN IC
26 TEST1 37
C264 27 SFCAP
TEST2 38
100pF SFBASE
32
PREIN
IOUT 43
18 IADAPT 45
REFSEL
42 LOCK 4
CCOMP
C204
C263
ADAPTSW
2.2uF
0.75pF 17 SFOUT 28
NC1
29
NC2 INDMULT
31
WARP
NC3
C201 C202 C203
100pF 1000pF 4.7uF
U247
ADP3300
ERR SD
6 3
OUT IN
4 5
NR
C291 2
10uF C294 C293
100pF 0.47uF
L203
2.2uH
C223 C235
0.1uF 2.2uF
Vdda
L201
2.2uH
C224 C217 C218 C220
0.1uF 2.2uF 0.1uF 100pF
23
24
R255
16.8MHz
4.3K
Q210
12
1
2
C260
AUX3 100pF
R5
AUX4
3 4
5V
LOCK
46
16
TP201 C213
25
1 100pF
R204
47K
FL201
16.8MHz
75Z04
6 OUT 3
IN
C207
C208
47pF CR203
NU
R281 C206
NU
330pF
SYNTHESIZER TOP SHIELD
SWB+
U248 4V_3.3V
LP2980
3 1 C277
C278
100pF
10uF
2
GND
C279
2.2uF
MODOUT
C233
0.1uF
1
TP202
R256 R231 C234
C232
120 0.47uF
30
.047uF
R232
C231
620
0.1uF
R233
560
VCTRL
L232
12uH
C238
470pF
SH201
SH202
SHIELD SHIELD
1
1
if
SYNTHESIZER BOTTOM SHIELD
UHF PCB 8415234H01 Schematics