Figure 9-121.Uhf (450-527 Mhz) Synthesizer Schematic Diagram - Motorola HT Series Detailed Service Manual

9-206
C230
100pF
CLK
Figure 9-121. UHF (450-527 MHz) Synthesizer Schematic Diagram
U211
TC7ST04FU
U210
TC7ST04FU
C296 C265 C257
0.1uF NU 100pF
1 4 1 4
NC NC
3 5 3 5
GND VCC GND VCC
2 2
C258
.01uF
C259
.01uF
CR201
3 4
K3 A3
5
2
K2 A2
1 6
K1 A1
C229
C228
1000pF 4.7uF
C292
0.1uF
C283
C282
NU NU
C298
0.1uF
8
CLK
9
CEX
CSX
10
MODIN
MODIN
7
DATA DATA
30
SFIN
C214 C211
C210 C212
100pF 100pF 100pF 100pF R201 35
PVREF
82K
21
VBPASS
40
R202
BIAS1
100K
39
BIAS2
26
C264 SFCAP
L261
27
39nH 100pF SFBASE
32
PRESC PREIN
18
REFSEL
42
CCOMP
C263 C204
0.75pF 2.2uF
17
NC1
29
NC2
31
NC3
VSF
C202
C201
C203
1000pF
100pF
4.7uF
U247
ADP3300
ERR SD
3
6
5V OUT IN
5
4
(SOURCE) NR
C291
2
0.47uF C294
L202 100pF
2.2uH
L203
2.2uH
C219 C223 C235
0.22uF 0.1uF 2.2uF
L201
2.2uH
C224 C217 C218 C220
0.1uF 2.2uF 0.1uF 100pF
23
XTAL1
24
XTAL2
19
FREFOUT 16.8MHz
41
MODOUT
15
VMULT1
Q210
14
VMULT2
12
VMULT3
11 1
VMULT4
48
AUX1
1 2
AUX2 BW_SEL C260
2
AUX3
U201 AUX3 100pF
3
63A27 AUX4 AUX4
3 4
37
TEST1
38
TEST2
43 5V
IOUT
45
IADAPT
4
LOCK LOCK
46
ADAPTSW
28
SFOUT
16 C213
TP201
INDMULT
100pF
25
1
WARP
FL201
75Z04
6 3
IN OUT
C207
39pF
GND
1
R281 C206
330pF
NU
UHF Band 2 Circuit Board/Schematic Diagrams and Parts List (PCB 8486686Z01)
SWB+
C293
4V_3.3V
0.47uF U248
3 1
LP2980
C277 C278
100pF 2.2uF
2
GND
Vdda
C279
2.2uF
MODOUT
C233
R255
0.1uF
4.3K
1
TP202
C234 C232
R256 R231
30 120 0.47uF .047uF
R5
R232
C231
620
0.1uF
R233
560
VCTRL
L232
12uH
R204
47K
C238
470pF
C208
CR203 NU
SH201 SH202
SHIELD SHIELD
1 1
if
SYNTHESIZER TOP SHIELD SYNTHESIZER BOTTOM SHIELD