REV 。一
DUTAVDD
C15
0.001F
C38
0.1F
C36
0.1F
C33
10F
6.3V
1
VIN + _A
JP6
C40
0.1F
4
5
6
7
8
9
TP9
WHT
11
12
13
14
15
16
17
DUTCLKB
19
20
21
22
DB0
DB1
DB2
DB3
DB4
JP35
JP8
AVDD
R51
5k
R5
5k
R44
5k
DUTDRVDD
C23
0.001F
C24
0.1F
C25
0.001F
C26
0.1F
C13
0.001F
C14
0.1F
C11
10F
6.3V
DB5
DB6
DB7
23
24
25
26
27
28
29
30
31
32
DFS
PDWN_B
OEB_B
DNC
DNC
D0_B
D1_B
D2_B
DRVSS1
DRVDD1
D3_B
D4_B
D5_B
U1
DUTYEN
CLK_B
18
AVDD4
AVSS4
VIN + _B
VIN - _B
AVSS3
VIN - _B
VIN + _B
AVDD3
C57
0.01F
REFT_B
D8_A
DRVSS3
DRVDD3
D7_A
D6_A
D5_A
D4_A
D3_A
D2_A
D1_A
D0_A
DNC
DNC
DRVDD2
DRVSS2
OTR_B
(MSB)D11_B
D10_B
D9_B
D8_B
REFB_B
D9_A
10
SENSE
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
OTRB
DB13
DB12
DB11
DB10
DA9
DA8
DA7
DA6
DA5
DA4
DA3
DA2
DA1
DA0
JP23
JP29
AVDD
JP27
CLKAO
D10_A
VREF
56
(MSB)D11_A
REFB_A
57
OTR_A
REFT_A
58
OEB_A
AVDD2
59
OTRA
DA13
DA12
DA11
DA10
R38
5k
R43
5k
R6
5k
PDWN_A
AVSS2
60
MUXSELECT
61
VIN - _A
SHAREDREF
JP7
C39
0.1F
C52
0.01F
VIN - _A
3
VIN + _A
62
CLK_A
2
DUTCLKA
AVSS1
AVDD1
63
64
JP10
JP9
JP28
AVDD
C34
10F
6.3V
C35
0.1F
C16
0.1F
C18
0.001F
C17
0.1F
C20
0.1F
C19
0.001F
C22
0.1F
C21
0.001F
C2
10F
6.3V
JP5
C32
0.1F
C12
10F
6.3V
AVDD
C37
0.1F
C30
0.1F
C1
10F
6.3V
AVDD
5 + IN
AGND;4
AVDD;8
R3
5.49k
U4 OUT
7
6 -IN
AD822
CW
R4
10k
1 1.2V
D1
2
3 + IN
AGND;4
AVDD;8
C29
0.1F
1
U4 OUT
2 -IN
AD822
图14.评估板电路图（续）
AD9238
D7_B
D6_B
33
–19–
JP3
JP2
R36
10k
C31
0.1F
JP1
DUTAVDD
JP4
R37
10k
JP12
JP11
AVDD
DB9
DB8
R41
5k
AD9238
