113
SCHEMATIC DIAGRAM /
原理图
NX-820
X57-824
9
/10
AO
AP
AQ
AR
AS
TX-RX UNIT (X57-8240-13)
LNA
DC Switch(50C)
DC Switch
(H/L Power)
TX Drive AMP
TX Pre-Drive AMP
-t
-t
THP1
HSW
+B
THP2
/H_L
MP
50C
80ANT
80T
50R
L213
D204
1SV278F
D206
1SV278F
N E S G 2 4 0 0 3 4
Q 2 0 2
L212
.
D101
DZ2J056(M)
L102
18n
.
L110
.
C152
47u
25
.
TH103
100k
L101
22n
.
L113
L 1 0 6
1 8 n
.
L109
2 S C 3 3 5 7 - A
Q 1 0 2
.
TH101
100k
.
L107
.
L111
D107
RKP351KW-1P2
2 S C 3 3 5 6 - A ( R 2 4 )
Q 1 0 1
.
C140
4.7u
16
.
L112
L 1 0 3
.
L105
.
L108
D 1 1 0
L 4 0 7 C D B
Q 1 0 6
E M D 5
D113
RN142S
D112
RN142S
L 1 1 5
L210
L 2 2 8
1
2
3
4 GND
5
6
7
8
V +
F K 3 3 0 3 0 1
.
Q 1 0 5
.
D 1 1 1
L 4 0 7 C D B
L215
L216
I C 1 0 2
1
2
3
4
RFINPUT
GATEBIAS
DRAINBIAS
RFoUTPUT
C 2 5 1
7 p
C253
470p
C246
470p
C256
.
C135
470p
C171
100p
.
C148
100p
.
C144
47p
C107
470p
.
C 1 3 6
4 7 0 p
C 1 1 9
6 p
C103
0.01u
.
C128
47p
C113
100p
C111
470p
.
C149
470p
C117
470p
.
C137
100p
.
C125
470p
C129
.
C168
470p
C 1 0 4
4 7 0 p
C116
100p
C124
C106
470p
C118
470p
.
C142
22p
C110
470p
.
C131
100p
C108
4.7u
25
C102
470p
.
C127
22p
C175
.
C134
470p
C173
470p
C172
470p
C 1 0 9
6 p
.
C 1 7 7
1 0 0 p
C151
C 2 6 3
C290
C 2 9 1
2 p
C292
C294
10p
C295
6p
C 2 9 6
C 2 9 7
1 0 0 p
C 2 5 4
.
C155
470p
.
C156
100p
C299
470p
C252
470p
C250
470p
C 2 8 9
1 0 0 p
R256
100k
R250
18k
R247
47
R255
100k
R249
18k
.
R120
15k
.
R125
820
.
R128
220
R113
15
R168
240
.
R121
820
R114
470
R110
22
R112
680
R109
220
R111
2.7k
.
R167
15k
R108
68
R101
3.3k
.
R 1 2 2
1 2
.
R 1 2 3
1 2
R 1 0 3
R169
240
R104
R170
0
R 2 9 0
0
.
R133
12k
.
R 1 3 7
1 0 0 k
.
R146
39k
.
R147
100k
.
R150
120k
.
R 1 4 9
1 0 k
.
R155
22k
.
R 1 4 1
3 3 k
.
R 1 3 1
1 0 k
.
R 1 3 8 1 0 k
.
R135
82k
.
R 2 1 8
0
R259
0
R 1 8 8
C179
.
C180
.
R181
0
MP
C N 1 1
C N 1 2
C N 1 0
E 2 3 - 1 2 7 8 - 0 5
C N 1 5
C N 1 4
.
C154
0.022u
R183
10k
L 1 2 1
1 5 n
C190
7p
R184
R185
R102
.
R187
47k
.
C169
1000p
.
C133
.
R 1 3 0
D114
RN142S
.
D 1 0 2
.
C 1 4 5
C N 2 04
C N 2 0 6
C N 2 0 5
C N 2 0 3
TH1
80T
+B
TH2
-
+
+
-
80T
Gate Bias
TX Power Module
.
I C 1 0 3
NJM12904RB1
OP AMP(APC)
Ov
er V
oltage
Protection
Voltage limiter
Antenna Switch
D110,111
Antenna Switch
D112-114
Over DC
Supply Protection
D204,206
RX BPF Tune
M E
S P +
S P -
M I C
M E
S P +
S P -
M I C
B-BUS
B-BUS
B-BUS
B-BUS
.
C
150
1u
Transient
2 2
220
220
470
1 2
470
7p
7p
3p
6p
4p
220p
0 . 1 u
6p
1 8 p
8p
3p
4 p
1 0 p
18p
DA3S101F
1 5 k
33n
82n
2 . 7 n
33n
22n
R A 6 0 H 4 0 4 7 1 1 0 1
1.4dBm
fC : 5.41V
fL : 1.52V
fH :
8
.92V
2.6V:25
℃
1.53V
T:0.
8
0V
R: 0V
T(5W)3.3V
T(25W):0.0V
R:0.0V
T:12.7V(25W)
R:13.6V
T(25W):2.
8
V
R:0.0V
T(5W):2.3V
T(25W) : 1.9V
R : 0.0V
T(5W) : 1.5V
T:7.
8
V
R:0.0V
13dBm
2.6V:25
℃
T:1.6V
R:0.0V
T:7.
8
V
R:0.0V
4.77V
4.7
8
V
(32dBm:Lo-Pow)
Summary of Contents for NEXEDGE NX-820
Page 122: ...NX 820 ...