
101
SCHEMATIC DIAGRAM /
原理图
NX-220
X57-804 4/8
AD
AC
AB
AA
Z
5.00V
3.30V
R:7.50V
T:7.33V
R:2.05V
T:2.01V
R:7.48V
T:7.38V
3.30V
3.30V
1.50V
7.50V
7.49V
3.83V
D
D
D
/PCS_RF
PCK_RF
PCK_DSP
15M
VOL
ENC1
ENC2
ENC4
ENC3
SBC
38M
S-DET
SB1
33C
/PCS_DSP
/PCS
SCK1
BATT
33A
33A
R544
10k
D508
DA N222
R546
10k
C538
Q509
E M D 1 2
R516
10k
R517
470k
R518
470k
S S M 3 K 1 5 T E ( F )
Q 502
R511
470
C536
6800p
R513
33k
C532
56p
C527
10u
L509
15u
D506
HRB0502A
R542
470k
R539
470k
R530
100k
R531
100k
R532
100k
R543
470k
R533
100k
R540
470k
Q 507
S S M 6 N 1 6 F E - F
Q 506
S S M 6 N 1 6 F E - F
IC612
TC7SH08FU-F
1I
N
B
2I
N
A
3G
N
D
4
oUTY
5
VCC
C698
0.01u
C508
1u
IC507
XC61CC5602N-G
1
VoUT
2
VIN
4
VSS
3
NC
C537
4.7u
I C 5 0 6
LT1616E S6-P B F
1B
o
o
S
T
2G
N
D
3F
B
4
SHDN
5
VIN
6
SW
D505
1SS388F
C526
10u
10
R524
470k
L506
R510
10
R507
68k
C516
0.1u
D502
1SS 388F
L508
C525
1000p
R553
0
L505
2SJ 648-A
Q501
C523
470p
C510
C514
4.7u
L503
4.7u
C521
10u
C524
1
u
L504
C529
1u
C530
1u
C519
1000p
C535
1000p
IC504
XC6209B502P-G
AVR(50C)
1N
C
2
VSS
3C
E
4
VIN
5
VoUT
C534
1000p
D501
1SR154-400
C506
22p
F 1
C528
1u
C522
0.22u
R 508
1k
I C505
X C6209B 332M-G
AVR(33C)
1 V I N
2 V SS
3 CE
4
NC
5
VoUT
IC503
XC9235A15CM-G
DC/DC(15M)
1
V I N
2
V S S
3
C E / M o D E
4
VoUT
5
LX
C503
1000p
R501
270k
R505
180k
C513
6800p
C517
1u
C509
1u
C515
1u
R646
0
R647
0
C699
0.01u
IC611
TC7SH08FU-F
1I
N
B
2I
N
A
3G
N
D
4
oUTY
5
VCC
CN502
+B
IC502
NJM2878F4-33
1
CoNTRoL
2
GND
4
VIN
3
VoUT
IC501
NJM2878F4-33
1
CoNTRoL
2
GND
4
VIN
3
VoUT
R5 47
0
R515
150k
R514
390k
C533
1000p
R503
0
C501
C502
CP501
100kx4
C552
470p
CN504
C504
6800p
CN505
GND
C548
R504
2.2k
C550
L502
C551
470p
C553
R509
2.2k
C599
R520
2 . 2
C539
R512
68k
C558
10u
L511
1u
R 554
1
CN1
1
+B
2
SB1
3
NC
4
33A
5
VOL
6
VOL_GND
7
ENC3
8
GND
9
ENC4
10
ENC2
11
ENC1
+
-
S
R31-0685-05
S60-0448-05
DC/DC (38M)
470p
470p
470p
470p
470p
470p
470p
1000p
C540
10u
0.01u
D505,506
DC/DC CONV
LEVEL CONV
LEVEL CONV
AVR (33A)
AND GATE
AND GATE
AVR (33M)
SPEED UP
REVERSE
PROTECT
DC/DC CONV
DC/DC CONT(100C)
DC SW(SB2)
VOLTAGE DET(BATT)
DC SW CONT(SB2)
33M
33M
50C
33A
50C
33A
SBC
/BINT
/PSW
+B
33M
33M
SB2
50C
50C
+B
C54
1
0.01u
R54
5
470k
Li-ion
BATTERY
VR1
S101
F53-0324-05
2.5A
5
6
6
5
5
SB2
+B
TX-RX UNIT (X57-8040-10)