Motorola PRO3150 Manual De Servicio página 180

4-128
C256
100pF
C258
.01uF
C259
C299
.01uF
100pF
C230 C229
100pF 1000pF
Low(mV)
CLK
C210
100pF
Figura 4-75. Diagrama esquemático del sintetizador de rango 2 de UHF (450-527 MHz) (tarjeta de circuito impreso nº 8485755Z01)
U210
U211
TC7SET04FU TC7SET04FU C265 C257
C296
NU 100pF
1 4 0.1uF 1 4
NC NC
3 5 3 5
GND VCC GND VCC
2 2
1.65V
CR201
3 4
K3 A3
2 5
K2 A2
1 6
K1 A1
C228
4.7uF
C292
0.1uF
C298
0.1uF
High(3.3V)
High(3.3V)
CSX
MODIN
C212
DATA
100pF C214
100pF
R201
C211
82K
100pF
R202
100K
C264
L261
100pF
39nH
PRESC
C263
0.75pF
C204
2.2uF
VSF
C201 C202 C203
100pF 1000pF 4.7uF
SH201
SHIELD
1
SYNTHESIZER TOP SHIELD SYNTHESIZER BOTTOM SHIELD
U247
ADP3300
1
ERR SD
6
5V OUT IN
4
(SOURCE) NR
2
C291
10uF
L202
2.2uH
L203
2.2uH
C223
C235
0.1uF
C219
2.2uF
0.22uF
L201
2.2uH
C224 C217 C218
0.1uF 2.2uF 0.1uF
23
XTAL1
24
XTAL2
8 19
16.8MHz
CLK FREFOUT
9 41
CEX MODOUT
10 15
MODIN VMULT1
7 14
DATA VMULT2
30 12
SFIN VMULT3
11
VMULT4
35
PVREF
21 48
VBPASS AUX1
1
AUX2 C260
40 U201 2
100pF
BIAS1 AUX3 AUX3
39 3
BIAS2 63A27 AUX4 AUX4
26 37
SFCAP TEST1
27 38
SFBASE TEST2
32
PREIN
5V
43
IOUT
18 45
REFSEL IADAPT
42 4
CCOMP LOCK LOCK
46
ADAPTSW
17 28
NC1 SFOUT
TP201 C213
29 16
NC2 INDMULT
1
100pF
31 25
NC3 WARP 3.3V
R204
FL201
45J49
3
1 GND 2
IN OUT
C207
56pF CR203
SH202
1.5V
SHIELD
R281
C206
NU
330pF
1
7.5V
SWB+
3
5
C294 C293
U248
100pF 0.47uF
LP2980
3 1
C277 C278
100pF 2.2uF
2
GND
Vdda
4 5
3.3V
C220 C279 MODOUT
100pF 2.2uF
C233
R255
0.1uF
4.3K
Q210
R256
R231
C234
30
120
0.47uF
1
C232
.047uF
2
R5
3 4
C231 R232
0.1uF 620
R233
560
L232
12uH
47K
C238
470pF
C208
1.6pF
ZMY0130411-O
4V_3.3V
TP202
1
3.5V@450MHz
9.5V@527MHz
VCTRL