107
SCHEMATIC DIAGRAM /
原理图
NX-720
X57-823 3/10
TX-RX UNIT (X57-8230-11)
K
L
M
N
O
D
D
D
D
D
TXD0
RXD0
RTS0
CTS0
BEEP
MIC
RXAF
MOD
BLVL
/PCS
LCDCS
/WP
/EVCS
CV
A-TMS
A-TDO
A-TCK
A-/TRST
A-RTCK
SDO1
W_/N
A[1]
A[3]
A[5]
A[6]
A[7]
A[8]
A[9]
A[10]
A[11]
A[12]
A[13]
A[16]
A[19]
A[20]
D[0]
D[1]
D[2]
D[4]
D[5]
D[6]
D[7]
D[8]
D[9]
D[10]
D[11]
D[12]
D[13]
D[14]
D[15]
/CS2
/FRST
SDO0
A-TDI
A[2]
/WR
A[14]
A[15]
/HINT
A[0]
A[4]
A[18]
A[17]
DDCLK
TXD2
PA
INAMT
/RD
SCK0
REV
FWD
D[3]
THP2
SCK1
SDI0
RXD2
/PTT
33M
HOOK_RXD1
MRSW
TXD1
DI
/CS3
/HDS2
/HRDY
I2CDT
GPS_ALM
33A_2
/CS0
I2CCK
33M
33A
33A_2
ASQDET
IC507
A4 XTALI
B4
XTALo
A10
32I
A12
DSPCK
B11
CKo
A11
USRCKI
H18
ADD0
J18
ADD1
K18
ADD2
L18
ADD3
M18
ADD4
N18
ADD5
J17
ADD6
K17
ADD7
M17
ADD8
N17
ADD9
P17
ADD10
K16
ADD11
L16
ADD12
M16
ADD13
P16
ADD14
J15
ADD15
K15
ADD16
M15
ADD17
N15
ADD18
P15
ADD19
J16
ADD20
H15
ADD21
G17
DT0
H16
DT1
G15
DT2
F18
DT3
F17
DT4
G16
DT5
E18
DT6
E17
DT7
F16
DT8
D18
DT9
D17
DT10
B15
DT11
D16
DT12
C15
DT13
D15
DT14
E15
DT15
A15
WRITE
A16
READ
B14
BHE
C14
BLE
A13
CS4
D13
CS3
C13
CS2
B13
CS1
A14
CS0
B12
HRADY
D14
HDS2
R18
TXD0
T18
RXD0
R16
RTS0
R15
CTS0
U15
TXD1
T15
RXD1
V15
TXD2
V14
RXD2
T14
TXD3
R14
RXD3
A9
SCK
C10
SDT
V4
SPCK0
U5
SPI0
T6
SPo0
V5
SPCS00
U4
SPCS01
T4
SPCS02
V6
SPCK1
U7
SPI1
T8
SPo1
V7
SPCS10
U6
SPCS11
T5
SPCS12
G3
ADC4
H1
ADC5
H2
ADC6
H3
ADC7
J1
ADC8
J2
ADC9
J3
MICVR
K1
SPDAC
K2
MICADC0
K3
MoDDAC
L2
MICADC1
T10
KEYI0
R9
KEYI1
V11
KEYI2
U10
KEYI3
T11
KEYI4
V12
KEYo0
U11
KEYo1
T12
KEYo2
V13
KEYo3
U12
KEYo4
R4
PWM1
P4
PWM2
V8
TI
R10
TDI
R12
TMS
R11
TDo
T13
TCK
U14
TRST
U13
RTCK
H17
BSCAN0
E16
BSCAN1
P18
RST
R17
RSTo
G18
TEST0
L17
TEST1
N16
TEST2
D3
AVCC1
E4
AVCC2
V16
NC36
F4
AVCC4
G4
AVCC5
H4
AVCC6
T3
NC35
K4
AVCC8
L3
AVCC9
M1
AVCC10
U3
NC34
E5
AGND2
F5
AGND3
G5
AGND4
H5
AGND5
J5
AGND6
K5
AGND7
L1
AGND8
E6
AGND9
A1
NC1
A2
NC2
B1
NC3
B2
NC4
A17
NC5
A18
NC6
B17
NC7
B18
NC8
U17
NC9
U18
NC10
V17
NC11
V18
NC12
U1
NC13
U2
NC14
V1
NC15
V2
NC16
A3
NC17
C3
NC18
C5
NC19
B16
NC20
D4
NC21
D6
NC22
C16
NC23
C18
NC24
F15
NC25
R13
NC26
T16
NC27
T17
NC28
N4
NC29
T1
NC30
F3
ADC1
J4
MICIR
D5
IFIR
CN509
IC506
SM5023CNDH-G
1
INHN
2
XT
3
VSS
4
5
6
Q
VDD
XTN
CN507
L506
CN504
CN428
DGND
CN425
CN427
CN426
R560
470k
R557
15k
R571
0
R555
1k
R556
22
R552
4.7k
R553
4.7k
R554
3.3k
R559
3.9k
R685
10k
R611
10k
R687
10k
.
R550
100k
C541
0.1u
C542
0.01u
C549
0.1u
C551
0.1u
C552
0.01u
C553
1u
.
C555
0.01u
C544
0.1u
C545
10u
DI
NC
NC
NC
NC
FLDM
NC
Buffer AMP(Clock)
ASIC
X2/CLKIN
RST
CLKX0
FSX0
CLKX0
FSX0
B-BUS
B-BUS
R558
22
.
C556
0.01u
D
B-BUS
B-BUS
A-BUS
D-BUS
C-BUS
(MCLK)
1
8
.432MHz
3.3V
Содержание NEXEDGE NX-720
Страница 122: ...NX 720 ...