114
NX-720
SCHEMATIC DIAGRAM /
原理图
X57-823 10/10
AT
AU
AV
AW
AX
TX-RX UNIT (X57-8230-11)
FWD
REV
33A_2
L114
9.5T
D103
RKS151KJ
D105
HSB88AS-E
D104
HSB88AS-E
.
L117
L118
68n
D106
DZ2J056(M)
D108
RB520SM-30
D109
RB520SM-30
R159
0
R161
100k
R160
0
R134
180
R143
100k
R158
33k
R152
1k
R136
180
R145
0
R139
100
R142
0
R154
0
R148
0
R157
33k
R176
470
.
R177
0
.
R178
0
R179
33k
R180
33k
C167
15p
C157
1000p
C163
22p
C165
470p
C158
470p
C184
22p
C161
4p
C188
1000p
C187
1000p
C193
100p
C191
150p
C192
10p
.
C182
27p
COUPPLER
Forward Power
Reverse Power
BLC
MKEYI
BLED
MBL
SCK0
SCK0
LCDCS
LCDCS
SDO0
HOOK_RXD1
TXD2
GLED
TXD1
BUCNT1
BUCNT2
MKEYO
50C
50C
RLED
SDI0
POWER
5V_TXD2
/PTT
SB
EMG
33M
.
CN514
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
.
IC511
TC74VHCT244AFK
1
1G
2
1A1
3
2Y4
4
1A2
5
2Y3
6
1A3
7
2Y2
8
1A4
9
2Y1
10
GND
11
12
13
14
15
16
17
18
19
20
2A1
1Y4
2A2
1Y3
2A3
1Y2
2A4
1Y1
2G
VCC
.
IC509
TC7WH126FU-F
1
G1
2
A1
3
Y2
4
GND
5
6
7
8
A2
Y1
G2
VCC
.
CP501
100kX4
.
D502
DB2S310
.
D511
DB2S310
.
IC716
TC7WT126FU-F
1
G1
2
A1
3
Y2
4
GND
5
6
7
8
A2
Y1
G2
VCC
.
CP508
100kX4
CN530
.
CP512
100kX2
.
CP515
100X2
.
CP516
100X4
.
CP511
100X2
.
R617
0
.
R613
10k
.
R610
470k
.
R615
4.7k
.
R684
47k
.
R686
22k
.
R616
.
R688
.
R690
1k
.
R612
1k
.
R614
0
.
C611
47p
.
C603
100p
.
C604
1000p
.
C602
0.01u
.
C609
.
C610
47p
47p
.
C612
.
C613
.
C605
.
C607
100p
100p
.
C614
100p
.
C615
.
C616
100p
100p
.
C617
100p
.
C618
100p
.
C620
100p
.
C621
1000p
.
C650
0.1u
.
C651
0.1u
.
C652
0.1u
.
C661
47p
.
C581
0.01u
LCDCE
LCDCL
GND
HOOK
PTT
MKEY
POWER
LCDDI
GND
GND
LCDDO
MIC
ME
SB
SP+
SP+
SP-
SP-
POWER
MIC
ME
SP+
SP-
BLC
MBL
EMG
GND
GND
NC
SB
RLED
GLED
BLED
50C
GND
5V_TXD2
0.01u
100p
470k
1k
Dual BUS Buffer
BUS Buffer
Dual BUS
Buffer
Reverse
Current Prevention
TX Power Detection
D104,105
Over Voltage
Protection
Over DC
Supply Protection
D108,109
Reverse
Current Prevention
Reverse
Current
Prevention
.
R1
0
ANT
D511
R171
0
B-BUS
Summary of Contents for NEXEDGE NX-720
Page 122: ...NX 720 ...