AD9801 データシートの表示（PDF） - Analog Devices
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AD9801 Datasheet PDF : 12 Pages
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EVALUATION BOARD
Figure 22 shows the schematic for the AD9801 evaluation
board. Notice the use of a common ground and supply for the
AD9801, and the extensive supply and reference decoupling.
AD9801
AVCC
AVCC
AVCC
C56
C49
AVCC
C52
C54
R6
10kΩ
CW
3
7
C37
U6
0.1µF AD707
0.1µF
0.01µF
TP25
6
PGACONT1
R7
10kΩ
CW
3
7
C36
U7
0.1µF AD707
0.1µF
0.01µF
TP24
6
PGACONT2
2
4
C70
2
4
C71
OBSOLETE 10µF
16V
C50
C55
R14
0.1µF 0.01µF
68Ω
AVSS
10µF
16V
C51
C57
R15
0.1µF 0.01µF
68Ω
AVSS
C61
0.1µF
C7
0.1µF
C12
0.1µF
VDD
C9
C10
C11
2µF
2µF
0.1µF
PGACONT1
PGACONT2
36 35 34 33 32 31 30 29 28 27 26 25
C6
0.1µF
37 CMLEVEL
38 INT_BIAS2
DVSS 24
CLPDM 23
C8
0.1µF
TP5
STBY
PIN
JP3
JP2
JP1
VDD
1kΩ
CW
DIN
0.1µF
C23
0.1µF
JP4
CLPDM
VDD
C5
0.1µF
39 MODE2
40 MODE1
41 ADVSS
SHD 22
SHP 21
CLPOB 20
CLPOB
SHP
SHD
42 ADVDD
43 ADVDD
U1
AD9801
PBLK 19
STBY 18
PBLK
C4
0.1µF
44 ADVSS
45 ADVSS
DVDD 17
ADCCLK 16
ADCCLK
46 SUBST
DVSS 15
VDD
47 VRB
DSUBST 14
C2
C1
48 VRT
0.1µF 1µF
DRVSS 13
C13
0.1µF
C29
0.01µF
40 PIN HEADER
C3
0.1µF
1 2 3 4 5 6 7 8 9 10 11 12
C14
0.1µF
+3V
JP1
+5V
JP2
TP28
FB1
C46
0.1µF
C47
22µF
TP27
FB2
C45
0.1µF
C44
22µF
C28
FB4
0.01µF
VDD
C66
0.1µF
–5V
JP3
VDD
FB3
C40
0.1µF
TP26
C41
22µF
AVSS
C68
0.1µF
AVCC
C67
0.1µF
GND
JP5
TP29
2
1
4
3
6
5
8
7
10
9
12
11
14
13
16
15
18
17
20
19
22
21
24
23
26
25
28
27
30
29
32
31
34
33
36
35
38
37
40
39
D9 (MSB)
D8
D7
D6
D5
D4
D3
D2
D1
D0 (LSB)
ADCCLK
Figure 22. AD9801EB Schematic
REV. 0
–11–
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