Circuit Board/Schematic Diagrams and Parts List
L340
390nH
HSMP3820
1
2
3
CR308
R317
1K
100pF
C395
C331
100pF
1K
R347
R5
C311
100K
R307
R306
100K
CR304
C306
CR305
C312
8.2pF
22nH
L305
C313
12pF
L306
19.71nH
19.71nH
L307
5.1 pF
C316
NU
NU
R305
470
R304
12K
C321
100pF
C309
100pF
R303
1 K
Q301
1
3
2
C307
0.1uF
0.1uF
C314
180nH
L304
C315
100pF
C310
0.1uF
R328
2.7
L303
33nH
R340
8.2K
19.71nH
L302
C308
100pF
100K
R301
12pF
C302
C305
12pF
CR301
CR302
5.1pF
C303
11pF
C304
R302
L301
100K
19.71nH
1
CR303
2
3
C301
8.2pF
RX_IN
1
SH304
SHIELD
1
SHIELD
SH302
1
SHIELD
SH301
SH303
SHIELD
1
RXFE Top Shield
RXFE Bottom Shield
Mixer Shield
RX Mixer Diode Shield
.01uF
C380
100K
R342
R5
DACRx
NU
C381
R329
0
C318
12pF
C317
8.2 pF
T301
4
6
3
1
2
XFMR
TP302
T302
XFMR
4
6
3
1
2
C320
C319
7.5pF
1.8pF
16.28nH
L309
R348
3.6K
R336
C333
R5
NU
NU
33K
R327
R316
91K
Q315
1
3
2
18K
R318
R319
150
C396
NU
R300
2.2K
1uF
C397
1
33.0K
RT300
2
R334
Q316
1
3
2
VR300
R326
NU
NU
NU
NU
R325
6.8K
R338
R335
RT301
2
1
C391
NU
NU
NU
NU
R5
C370
100pF
R330
RSSI
RX_INJ
NU
R331
C372
Q310
1
3
2
C371
100pF
C386
NU
NU
NU
NU
0
R349
100pF
C374
C378
C373
NU
NU
C375
VCOBUF
100pF
R332
L321
0
R339
R5
NU
NU
R333
NU
R309
18
82pF
C322
L310
150nH
270
R308
270
R310
2
3
4
1
CR306
IF
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
1.797V@-50dBm
0.508V
4.396V
2.285V
[email protected]
[email protected]
Note:
Rx1 = [email protected] rf signal
Rx2 = [email protected] rf signal
probed using high impedence probe
ZMY0130352-O
330-400MHz Receiver Front End Schematic Diagram
Содержание GP328 Plus
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