Motorola PRO Serie Manual De Servicio página 22

4 -122
-53 dBm Note 1, Note 2
C316 FL300
RX_IN
2 1
IN OUT
3
CR300
56pF
2 1
SH301 SH303
1 1
RXFE Top Shield Mixer Shield
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.
Figura. 4-88 Diagrama eléctrico de la etapa de entrada del receptor de 800MHz (Rev O/A)
R5
C304 C307
R312
330 0.1µF 68pF
R310
12K
C306
L302
220nH 68pF
C303
C305
L304
10pF
R309
12nH
56pF
Q302
1
680
C300
C308
4
1.2pF
2.95V
8pF
R306
L301
5.6K
3.3nH
0.75V
L303 R315
390nH
1K
C301
68pF
R5
U302
4
1
NC
0.58V Note 2
0.2V Note 3
R314
180K for rev "O"
NU for rev "A"
C318
56pF
NU
-41 dBm Note 1, Note 2
FL301
1 2
IN
OUT
2
IF
8
RF
C317
56pF
R318
820
C310
CR301
15pF
C302
0.1µF
R307
NU
56K
R317
2
FE_AGC
22K for rev "O"
8.2K for rev "A"
2.5V Note 2
3V Note 3
C312
30pF
L306
-50.3 dBm @ 109.65MHz Note 1
68nH
R320
R322
120
120
R321
IF
51
U301
5
LO
+6.5 dBm @ 752.2MHz Note1
C311
82pF
R323
LO_TEST
3.6K
R5
R324
560
C313
82pF
L309
3.15V 220nH
R325
C314
L307
30K
Q304
22nH
82pF R327
R326
47
39
C315
0.75V
L308
R328
47nH
15K
C319
82pF
NU
0 dBm @752.2MHz Note 1
L310
RX_LO
8.2nH
8pF