R1
33
+3.3V
C2
0.1F
+3.3V
C3
0.1F
1
+3.3V
R46
C56
0.1F
3
JP6
FS
1
2
3
+3.3V
C13
0.8V
REF
0.1F
V
REF
R8
33
DC590 DETECT
TO CPLD
U3
NL17SZ74
5
3
DB17
DB16
J2
CON- EDGE 40-100
CLR \\
Q\
PR \\
Q
6
5
4
R4
7 33 4
CP
GND
8
D
V
CC
2
+3.3V
C4
0.1F
5
4
2
C11
0.1F
R31
选择
V
+
U15
5 LT6202CS5
+3.3V
C7
0.1F
C20
47F
6.3V
0805
4
9V至10V
+3.3V
C5
0.1F
R3
CLK
33
TO CPLD
1
2
3
4
U4
NC7SVU04P5X
2 CNVST_33
从CPLD
+3.3V
C1
0.1F
R2
1k
5
电路板布局
J1
CLK
IN
2
R5
49.9
1206
U2
R6 3 U8
3
NC7SZ04P5X NC7SVU04P5X
1k
U20
LTC6655AHMS8-5
8
SHDN
GND
7
V
IN
OUT_F
6
GND OUT_S
5
GND
GND
JP1
HD1X3-100
耦合
AC
DC
1
2
J4
C42
15pF
–IN1
4
C58
选择
R45
C9
10F
6.3V
C10
0.1F
C61
10F
6.3V
V
DD
2
OV
DD
15
REF 7
8
REF
2
V
–
C18
选择
R15
选择
R9
选择
+2.5V
JP2
CM
C55
1F
V
+
C57
0.1F
V
–
R35
选择
演示板的局部示意图
1
3
6
10
16
1
GND
GND
GND
GND
C8
1F
V
REF/2
2
EXT
C63
10F
6.3V
C43
0.1F
C44
1F
C60
0.1F
C59
1F
9V至
10V
3
E7
EXT_CM
HD1X3-100
C46
1F
R40
选择
耦合
AC
DC
JP5
HD1X3-100
1
2
3
A
IN =
C49
选择
J8
R39
0
R41
选择
C47
OPT C48
10F
6.3V
–
+
OUT1 1
HD1X3-100
U6
选择
NC7SZ66P5X 5
C39
CNV
V
CC
0.01μF R16
9
2 B
A 1
0 4
NPO
CNV
13 SCK
+
IN
SCK
OE 4
C65
14 SDO
SDO
选择
R19
LTC2370-16
GND
11 BUSY
忙
0805 NPO
0
3
IN
–
12 RD
RDL / SDI
R58
C40 5
选择
R7
+3.3V
NPO
1k
R38
U9
选择
C15
NC7SZ04P5X
5
0.1F
2
4
3
R17 R13
2k
1k
J3
DC590
R10
4.99k
SDO
1
3
5
7
9
11
13
2
4
6
8
10
12
14
U7
C14
0.1μF 8 24LC025 -I / ST
V
CC
SCL
SCK
SDA
WP
CNV
ARRAY
A2
EEPROM
A1
A0
V
SS
4
6
5
7
3
2
1
A
IN
+
R14
0
3 + IN1
V+
R32
5.1
+2.5V
C17
10F
R32
0
C6
10F
6.3V
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
DB8
DB9
DB10
DB11
DB12
DB13
DB14
DB15
3
CLKOUT
C16 1
0.1F
39
37
35
33
31
29
27
25
23
21
19
17
15
13
11
9
7
5
3
1
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
R11
4.99k
R12
4.99k
237018 BL
LTC2370-16
21
237016fa
