Motorola PRO3150 Manual De Servicio página 192

4-140
C256
100pF
C258
.01uF
C299
100pF
C259
.01uF
C230
100pF
CLK
Figura 4-84. Diagrama esquemático del sintetizador de rango 2 de UHF (450-527 MHz) (tarjeta de circuito impreso nº 8485755Z03)
U211
U210
TC7ST04FU
TC7ST04FU
C296 C265
1 4 0.1uF NU
1 4
NC
NC
5
3
3 5
VCC
GND GND
VCC
2 2
CR201
3 4
K3 A3
2 5
K2 A2
6
1
K1 A1
C229
C228
1000pF
4.7uF
C298
0.1uF
CSX
MODIN
DATA
C210 C212 C211
C214
100pF
100pF 100pF
100pF R201
82K
R202
100K
C264
L261
100pF
39nH
PRESC
C263 C204
0.75pF 2.2UF
VSF
C201 C202
100pF 1000pF
C257
100pF
U247
ADP3300
ERR
6
5V
OUT
4
(SOURCE)
NR
C291 2
10.0uF
L202
2.2uH
C292
0.1uF
C235
C223
2.2uF
0.1uF
C219
0.22uF
C217
C224
0.1uF 2.2uF
23
XTAL1
24
XTAL2
8
19
CLK 16.8MHz
FREFOUT
9
41
CEX
MODOUT
10
15
VMULT1
MODIN
7
14
DATA VMULT2
30
12
SFIN VMULT3
11
VMULT4
35
PVREF
21 48
AUX1
VBPASS
1
AUX2
C260
2
40 100pF
AUX3 AUX3
BIAS1
39 U201 3
AUX4
BIAS2 AUX4
63A27
26 37
TEST1
SFCAP
27 38
TEST2
SFBASE
32
PREIN
43
IOUT
18 45
IADAPT
REFSEL
42 4
LOCK
CCOMP
46
ADAPTSW
28
17
SFOUT
NC1
29 16 C213
INDMULT
NC2 TP201
100pF
31
25
NC3 WARP
1
75Z04
FL201
C203
4.7uF 6
IN
GND
C207
39pF 1
R281 C206
NU 330pF
1
GND
SD SWB+
3
IN
5
C294
C293
100pF 0.47uF
U248
L203 LP2980 3 1
2.2uH
2
GND
Vdda
C218
0.1uF
C218 C220 C279 C280
0.1uF
100pF 2.2uF 2.2uF
C233
R255
0.1uF
4.3K
Q210
R231
R256
120
30
1
47K
4.7K
2
47K
10K
R5
3
4
R232
C231
620
0.1uF
R233
5V 560
LOCK
L232
12uH
R204
47K
C238
470pF
3
OUT
SH201
GND1
C208
SHIELD
CR203
NU
4
1 if
SYNTHESIZER TOP SHIELD SYNTHESIZER BOTTOM SHIELD
4V_3.3V
C277
C278
100pF 2.2uF
MODOUT
1
C223
TP202
C234 C232
.047uF
0.47uF
VCTRL
ZMY0130411-A
SH202
SHIELD
if
1