Motorola PRO Serie Manual De Servicio página 23

L350
R350
Vdda
20 2.2µH
C350
10µF
AGC Processing
R351 R352
RSSI
12K
120
R353
5.6K for rev "O"
1.53V Note 2 R354
12K for rev "A"
0.3V Note 3 NU
R5
109.65MHz Crystal Filter
L353 L354
1
IF
IN
FL350
120nH
470nH
C378
C377
22pF 2.4pF
DATA
CLK
LVZIF_SEL
16.8MHz
2.5V Note 2
3V Note 3
U350
5
VCC
2 4
1
NC
R355
C355
4700pF
10K
IF Amplifier
0.1µF
C361
R356
L352
390nH
1.5K
3V Note 3
5V
R358
47K
U352
C371
4
OUT
4700pF
L355 R359 C376
2.4V
1.5K
220nH 2pF R360
Note 3
47K
R366
1.5K
Second LO
2.84V
R361
200
C385
R362
10K
C386 9.1pF
Q350
13pF
1.75V
C389
C388
13pF 2.45V 13pF
L356
L357
33nH R363
47K
2.2µH
R364
C390
CR350
2K
13pF
FE_AGC
C354
L351
.022µF
390nH
C358
0.1µF
C362
C359
0.22µF
4700pF
-30.8 dBm @ 109.65MHz
Note 1, Note 2
1
RED_VCC
C365
2
RED_VSS
3
PRE_IN
4
RSSI_OUT
8pF 5
RSSI_FLT
6
EXTBS
7
AFC
8
TESTD
9
VPP
10
GOLD_VCC
11
EMIT
C369 C370
12
C367
BASE
0.1µF
4700pF .022µF
1.4V
Note 3
C393
0.1µF
C382
10µF
-19.5 dBm @219.3MHz Note 1
C387
15pF
Second LO Loop Filter
.5V to 2.7V
R365 C391
.01µF
3.6K
C392
1µF
Figura. 4-89 Diagrama eléctrico de la etapa de salida del receptor de 800MHz (Rev O/A)
C352
.022µF
C353
0.22µF
C356
C357
100pF
1µF
C363
1µF
C364
36
1µF
C4M
35
C3M
34 C366
C2M
33 1µF
C1M
32
C360
VAG 31 0.22µF
U351
LIM
30
ROSE_VCC
29
ROSE_VSS
28
DEMOD_HF
27
DEMOD_OUT
26
PHASE_LOCK
25
VAG_REF
C372 C373 C374
0.22µF
10µF .022µF
C379
1500pF
C380
0.1µF
C381
SH350 SH351 SH352
0.1µF
C383
1 1 1
.022µF
Second LO IF Amp IF Filter
Notes:
1. Measured using high impedance probe.
2. Measured with -50dBm 861.85MHz RX signal at the antenna input.
3. Measured with no RX signal at the antenna input.
4 -123
DEMOD
SH353
1
LVZIF