144
NX-200
SCHEMATIC DIAGRAM /
原理图
9.5mV
3.282V
3.28V
A
A
L708
0
R716
PTT2
CN702
PTT1
CN703
CN704
RSSI
CN705
DOWN
CN706
GND
CN708
RXD
CN707
TXD
INA
INB
GND
1
2
3
VCC
oUTY
5
4
IC104
TC7SH08FU-F
100k
R133
L709
150
R148
0.01u
C123
VSS
5
6
INTRA
4
INTRB
CLKC
7
3
SDA
OSCOUT
8
2
SCL
OSCIN
9
1
32KOUT
VDD
10
RV5C386A
IC106
X101
I2CCK
I2CSDA
RTC
0.1u
C159
47k
R138
VoUT
CD
4
3
VIN
VSS
1
2
XC6109C29ANN
IC105
0
R149
0.01u
C124
0.01u
C122
RESET
D
D
D
4
XTN
6
5
Q
VDD
1
2
3
INHN
XT
VSS
IC107
SM5023CNDH-G
D
D
100k
R166
C134
1k
R165
0.01u
C130
470k
R162
22
R159
L713
VCC
4
1
VC
18.432MHz
oUTPUT
3
2
GND
D
D
0.01u
D5
J4
F3
R14
A9
C10
V4
U5
T6
V5
U4
T4
V6
U7
T8
V7
U6
T5
G3
H1
A4
B4
A10
A12
B11
A11
H18
J18
K18
L18
M18
N18
J17
K17
M17
N17
P17
K16
L16
M16
P16
J15
K15
M15
N15
P15
J16
H15
G17
H16
G15
F18
F17
G16
E18
E17
F16
D18
D17
B15
D16
C15
D15
E15
A15
A16
B14
C14
A13
D13
C13
B13
A14
B12
D14
R18
T18
R16
R15
U15
T15
V15
V14
T14
IFIR
MICIR
ADC1
RXD3
SCK
SDT
SPCK0
SPI0
SPo0
SPCS00
SPCS01
SPCS02
SPCK1
SPI1
SPo1
SPCS10
SPCS1
1
SPCS12
ADC4
ADC5
XTALI
XTALo
32I
DSPCK
CKo
USRCKI
ADD0
ADD1
ADD2
ADD3
ADD4
ADD5
ADD6
ADD7
ADD8
ADD9
ADD10
ADD11
ADD12
ADD13
ADD14
ADD15
ADD16
ADD17
ADD18
ADD19
ADD20
ADD21
DT0
DT1
DT2
DT3
DT4
DT5
DT6
DT7
DT8
DT9
DT10
DT11
DT12
DT13
DT14
DT15
WRITE
READ
BHE
BLE
CS4
CS3
CS2
CS1
CS0
HRADY
HDS2
TXD0
RXD0
RTS0
CTS0
TXD1
RXD1
TXD2
RXD2
TXD3
CN104
22
R158
/RINT
32K
A20
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
CN106
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
/WR
/RD
/CS4
/CS3
/CS2
/CS0
/HRDY
/HDS2
CN105
TXD0
RXD0
RTS0
CTS0
AMT
/OINT
RXD2
26P_TD
LED_G
LED_R
100k
R154
R155 47k
R156 4.7k
R157 4.7k
R160
R161
I2CSDA
I2CCK
R153
100k
I2CSDA
I2CCK
RXD3
SCK0
T
ONESW
SDO0
/EVCS
STSW
/WP
SCK1
SDO1
/FLDM
CN1
1
For Boot
0
R419
W_/N
CV
S_DET
C160 6800p
R163 100k
33M
32K
/RINT
32K
MCSCKCN
31BU
33M
5RC
/PTT
/PTT
RSSI
MAN
ASQDET
AUD_IREFC
AD12_IREFF
/MNDNU
33A-1
33MAS
RXD
TXD
0
0
LCONT
RESET
RESET
LCONT
5RC
BCLKR0
BCLKX0
HD0
HD2
X2_CLKIN
HD2
GPIo7
BUFFER
2 INPUT
AND GATE
32768Hz
X102
SPCS10
C812
1u
33MDSP
5
5
5
6
6
6
6
6
7
7
7
7
7
8
8
8
8
9
9
9
9
11
11
11
11
11
12
12
12
12
12
13
13
13
13
14
14
14
14
14
15
15
15
15
16
16
16
18
18
18
18
18
X53-426 3/10
K
L
M
N
O
CONTROL UNIT (X53-4260-11)