Table of Contents
Advertisement
C5202
RX_IF_3
Y5201
RX_IF
1
3
15pF
IN
OUT
C5200
L5201
C5201
22pF
1200nH
4.7pF
GND
CASE
2
4
0102725B89
GEPD5527 12,5kHz channel spacing
0102725B90
GEPD5528 20/25kHz channel spacing
Diagrams and Parts Lists
5V_STAB
R5206
10
L5206
33000nH
NU
R5204
100
C5204
.100uF
R5205
2K
R5202
33K
2
D5201
C5205
C5203
R5203
18pF
6.8K
.100uF
3
Y5202
R5207
Q5201
1
3
0
OUT
IN
C5206
L5202
R5201
20pF
1200nH
10K
GND
CASE
NU
NU
2
4
C5212
15pF
2
C5213
R5211
Y5211
36pF
820
45.645MHz
1
C5211
15pF
L5211
1.2uH
FL5204
XX
NU
XX
IN
OUT
GND
CASE
XX
XX
5V_FLT
9V3
FL5203
XX
NU
XX
IN
OUT
R5217
C5215
C5216
GND
CASE
0
0
.220uF
.220uF
XX
XX
NU
2
FL5201
FILTER
INSTPAR
1
3
5V_FLT
C5223
.1uF
1
8
3
4
2
34
MIXER_IN
5
PREAMP_OUT
C5208
6
PREAMP_IN
.100uF
12
REG_5V_OUT
L5203
C5207
13
C5221
U5201
20pF
A+_B+
1.2uH
10uF
C5222
NU
14
IF_IC
.220uF
DRIVE
7
LO_IN
C5214
27
5V_TR
3.9pF
10
OSC_OUT
9
OSC_F_B
R5212
5.6K
SQ_TAIL
1
16
19
21
11
C5227
4.7uF
R5221
C5225
150K
4.7uF
C5220
C5226
.01uF
.047uF
5V_FLT
5V_FLT
3
2
4
FL5202
FILTER_6POLE
INSTPAR
1
5
FILTER
C5224
.0015uF
C5231
33
32
35
31
36
1uF
DEMOD
C5232
C5233
_OUT
100pF
100pF
29
AUD_BUF_IN
28
AUD_BUF_OUT
22
ADAPT
C5237
R5225
23
SQ_LIM_OUT
100
20
0.1uF
SQ_RECT_IN
25
RSSI_BP
26
ICO_TUNE
15
SQ_OUT
18
ACT_IND
SQ_NOISE
R5224
C5234
C5235
13K
0.1uF
100pF
17
24
30
5V_FLT
R5222
68K
C5229
R5223
.0047uF
6.8K
C5228
C5230
0.1uF
.01uF
E5201
NU
336-390MHz RX-IF Schematic Diagram
336-390MHz RX-IF Schematic Diagram
R5216
10K
DET_AUDIO_3
DET_AUDIO
ADAPT_3
ADAPT
C5238
SQ_ATT_3
SQ_ATT_IN
0.1uF
C5239
SQ_ATT_OUT_3
SQ_ATT_OUT
51pF
CSQ_DET_3
CSQ_DET
FAST_SQ_3
FAST_SQ
5V_STAB_3
C5236
5V_STAB
5V_STAB
100pF
9V3_3
9V3
9V3
RSSI_3
RSSI
5-19
Advertisement
Chapters
Table of Contents
