Motorola PRO3150 Manual De Servicio página 82

4-30
C256
100pF
C258
.01uF
C259
.01uF
C230
100pF 1000pF
CLK
C210
100pF
Figura 4-24a. Diagrama esquemático del sintetizador de rango 1 de UHF (403-470 MHz) (tarjeta de circuito impreso nº 8480672Z01)
U210
U211
TC7SET04FU TC7SET04FU C265
C296
NU
1 4 0.1uF 1 4
NC NC
3 5 3 5
GND VCC GND VCC
2 2
C299
100pF
CR201
3 4
K3 A3
2 5
K2 A2
1 6
K1 A1
C229 C228
4.7uF
C292
0.1uF
C298
0.1uF
5V
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
100pF 1000pF
SH201
SHIELD
1
SYNTHESIZER TOP SHIELD SYNTHESIZER BOTTOM SHIELD
C257
100pF
5V
U247
ADP3300
ERR
6
5V OUT
4
(SOURCE) NR
2
C291
0.47uF
L202
2.2uH
C223
C235
0.1uF
C219
2.2uF
0.22uF
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
43
IOUT
18 45
REFSEL IADAPT
42 4
CCOMP LOCK
46
ADAPTSW
17 28
NC1 SFOUT
TP201 C213
29 16
NC2 INDMULT
1
100pF
31 25
NC3 WARP
4.568V
FL201
45J49
2.51V
C203 3
4.7uF
1 GND
IN OUT
C207
56pF CR203
SH202
SHIELD
R281
C206
NU
330pF
1
7.697V
1
SD SWB+
3
IN
5
C294 C293
U248
100pF 0.47uF
LP2980
L203 3 1
C277 C278
2.2uH
100pF 2.2uF
2
GND
Vdda
4 5
L201
2.2uH
3.294V
C220 C279
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
5V
LOCK
L232
12uH
R204
47K
C238
470pF
2
C208
1.6pF
ZMY0130316-B
4V_3.3V
MODOUT
TP202
1
3.503V
VCTRL