Motorola PRO Elite Serie Manual De Servicio página 104

7-6
C230
100pF
CLK
C210
100pF
Figura 7-6. Diagrama esquemático del sintetizador de UHF
U210 U211
TC7SET04FU TC7SET04FU
C265 C257
C296
NU 100pF
0.1uF
1 4 1 4
NC NC
3 5 3 5
GND VCC GND VCC
2 2
C258
.01uF
C259
.01uF
CR201
4
3
K3 A3
2 5
K2 A2
1 6
K1 A1
C229 C228
1000pF 4.7uF
C292
0.1uF
C298
0.1uF
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 3
5V OUT IN
4 5
(SOURCE) NR
C291 2
C294
0.47uF
L202
100pF
2.2uH
L203
2.2uH
C223
0.1uF C235
C219
2.2uF
0.22uF
L201
2.2uH
C224 C217 C218 C220
0.1uF 2.2uF 0.1uF 100pF
23
XTAL1
24
XTAL2
8 19
16.8MHz
CLK FREFOUT
9 41
CEX MODOUT
10 15
MODIN VMULT1
Q210
7 14
DATA VMULT2
30 12
SFIN VMULT3
11 1
VMULT4
35
PVREF
21 48
VBPASS AUX1
2
1
AUX2 C260
40 U201 2
100pF
BIAS1 AUX3 AUX3
39 3
63A27
BIAS2 AUX4 AUX4
3
26 37
SFCAP TEST1
27 38
SFBASE TEST2
32
PREIN
5V
43
IOUT
18 45
REFSEL IADAPT
42 4
LOCK
CCOMP LOCK
46
ADAPTSW
17 28
NC1 SFOUT
TP201 C213
29 16
NC2 INDMULT
1
100pF
31 25
NC3 WARP
R204
47K
FL201
45J49
3
1 GND 2
IN OUT
C207 C208
56pF CR203 1.6pF
SH202
SHIELD
R281
C206
NU
330pF
1
Tarjeta de circuito de UHF banda 1, esquemas eléctricos y lista de partes
SWB+
C293
4V_3.3V
0.47uF U248
LP2980
3 1
C277 C278
100pF 2.2uF
2
GND
Vdda
4 5
C279
2.2uF
C233
R255
0.1uF TP202
4.3K
1
R256
R231
C234
30
120
0.47uF
C232
.047uF
R5
4
C231 R232
0.1uF 620
R233
560
VCTRL
L232
12uH
C238
470pF