105
SCHEMATIC DIAGRAM /
原理图
NX-820
X57-824 1/10
A
B
C
D
E
1
2
3
4
5
6
7
DC Switch(SB)
DC Switch(50R)
DC Switch(80ANT)
DC Switch(80T)
DC Switch(50MC)
DC Switch(50MC)
DC Switch(80T)
DC Switch(SB)
DC Switch
(80ANT)
D
D
D
D
D
BLVL
SBC
/SAVE
/BINT
GPSC
TXC
/OVRB
RXC
50CS
80T
15M
80ANT
DSW
80T
+B
50R
33GPS
SB
50C
33M
50MC
33A
33A_2
SBC2
SBC2
SBC2
50M
50M
80C
.
C401
470u
25
2 S A 1 9 5 5 A - F
.
Q 4 0 4
D401
DZ2J180(M)
1
V o U T
2
V S S
3
V I N
4
5
VSEN
CD
2 S A 1 9 5 5 A - F
Q 4 1 0
.
D404
DA2S101
1
BooST
2
GND
3
FB
4
5
6
SHDN
VIN
SW
L405
C452
4.7u
16
F K 3 3 0 3 0 1
Q 4 0 7
C440
47u
25
L404
I C 1
TA7808F-NQ
3
GND
1
IN
2
OUT
IC406
XC6209B332M-G
1
VIN
2
VSS
3
CE
4
5
NC
VoUT
IC407
NJM2878F4-33
1
2
CoNTRoL
GND
4
VIN
3
VoUT
.
I C 4 0 4
XC6209B502P-G
1
2
3
NC
VSS
CE
4
VIN
5
VoUT
IC408
XC6205B152P-G
1
2
3
NC
VSS
CE
4
VIN
5
VoUT
DC Switch
(Over DC Supply
Protection)
Q401
LTC014EEBFS8
.
Q411
LTC014EEBFS8
CN414
CN421
C N 4 2 3
+B
.
Q 4 1 7
E M D 5
.
Q 4 0 5
LTC014EEBFS8
2 S A 1 9 5 5 A - F
.
Q 4 0 2
.
Q 4 1 2
LTC014EEBFS8
.
D410
22ZR-10D
.
D411
DSA3A1
CN417
CN419
C N 4 2 2
CN418
Q403
MTM981400BF
6
1
2
3
5
4
7
8
.
C429
470p
.
C431
100p
0.01u
C405
.
C432
0.1u
C417 100p
.
C422
1000p
.
C427
0.047u
C413
100p
.
C403
470p
.
C439
0.1u
4.7u
25
4.7u
C433
C434
25
C451
10u
.
C428
0.1u
C442
0.01u
C443
1u
C455
2.2u
C453
0.01u
.
C424
100p
C457
100p
C430
4.7u
C461
1u
C446
0.01u
C438
0.1u
C450
10u
0.01u
C409
C423
100p
.
C458
100p
.
C460
100p
C437
4.7u
C448
0.01u
C436
0.01u
C435
2.2u
C449
1u
.
C475
1u
.
C441
2.2u
.
C476
0.1u
.
C477
0.1u
C454
2.2u
C445
0.01u
C456
0.01u
C447
1u
.
C411
0.1u
C471
100p
DC Switch
(33A_2)
Q 4 0 9
E M 6 M 1
4
6
1
2
3
5
D 4 0 7
R B 5 2 0 S M - 3 0
D 4 0 3
RB520SM-30
R405
10k
R 4 0 7
4 . 7 k
.
R421
4.7k
R401
470
.
R414
10k
R406
10k
.
R403
270k
.
R404
100k
R424
10k
R423
4.7k
R402
10k
.
R408
680k
.
R409
100k
R417
100k
R425
120k
R426
18k
R427
22k
R428
1k
R422
470k
R 4 1 8
0
R 4 3 8
1 0
.
R439
470k
R412
10
R413
10
.
R415
10k
.
R 4 1 9
2 . 7 k
.
R441
2.7k
DC Switch(50CS)
.
Q 4 0 8
E M D 5
.
C472
1000p
.
F401
.
F 5 0 2
Q418
LTC014EEBFS8
.
F503
R683
0
.
R678
0
.
R682
0
.
R680
0
C649
0.01u
.
R677
0
.
C647
0.01u
.
R679
0
.
C648
0.1u
.
R681 0
22uH
50CS(SAVE)
50MC
Digital GND
DC Switch(80ANT)
AVR(80C)
AVR(33M)
.
IC402
XC6118C23CMR
Voltage Detector(BINT)
AVR(50C)
IC405
LT1616ES6-PBF
DC/DC Converter(50M)
AVR(33A)
AVR(33GPS)
AVR(15M)
Over DC Supply
Protection
D403,404
Reverse Current
Prevention
DB22306
D406
DC/DC
Converter
DC/DC Converter(50M)
Surge
Protection
Reverse
Current
Prevention
TX-RX UNIT(
X57-8240-13
)
SBC2
DSW
Discharge
-B
13.6V
BATTERY
5A
33A_2
2.5A
33GPS
SB
80T
375mA
50R
50C
50CS
IC401
XC6209B332M-G
1
VIN
2
VSS
3
CE
4
NC
5
VoUT
C416
0.01u
D405
DB2S310
R411
47k
C420
1u
25
0.01u
C425
R410
4.7
0.01u
C408
C410
2.2u
16
R:4.59V
T:3.45V
3.26V
T:0.0V
R:3.3V
4.
8
9V
3.30V
1.7V
2.3V
3.3V
4.99V
1.5V
3.32V
3.3V
T(5W):13.4V
T(25W):13.2V
R:13.6V
T:7.
8
V
R:0.0V
R:6.77V
T:6.5V
〜
6.7V
5.02V
3.27V
3.31V
7.9V
T:0.0V
R:4.75V
T:7.
8
V
R:0.0V
T:0.0V
R:3.3V
T:3.3V
R:0.0V
3.32V
5.0V
R:13.6V
T(25W):13.2V
4.43V
4.9
8
V
Summary of Contents for NEXEDGE NX-820
Page 122: ...NX 820 ...