AD9785/AD9787/AD9788
Rev. A | Page 16 of 64
50
60
70
80
90
100
07
09
8-
08
3
fOUT (MHz)
IM
D
(
d
B
c)
0
50
100
150
200
250
300
350
400
450
100MSPS
75MSPS
50MSPS
Figure 23. AD9788 IMD vs. fOUT, 8× Interpolation
50
60
70
80
90
100
0
40
80
120
160
200
240
280
320
360
400
07
09
8-
08
4
fOUT (MHz)
IM
D
(
d
Bc)
–6dBFS
0dBFS
–3dBFS
Figure 24. AD9788 IMD Performance vs. Digital Full-Scale Input,
4× Interpolation, fDATA = 200 MSPS
50
60
70
80
90
100
0
40
80
120
160
200
240
280
320
360
400
07
09
8-
08
5
fOUT (MHz)
IMD
(
d
B
c)
20mA
10mA
30mA
Figure 25. AD9788 IMD Performance vs. Full-Scale Output Current,
4× Interpolation, fDATA = 200 MSPS
50
60
70
80
90
100
0
40
80
120
160
200
240
280
320
360
400
07
09
8-
08
6
fOUT (MHz)
IM
D
(
d
B
c)
55
65
75
85
95
Figure 26. AD9788 IMD vs. fOUT, over 50 Parts, 4× Interpolation,
fDATA = 200 MSPS
07
09
8-
08
7
fOUT (MHz)
NS
D
(
d
Bm/
H
z)
–170
–166
–162
–158
–154
–150
–146
–142
0
20
40
60
80
100
0dBFS
–3dBFS
–6dBFS
Figure 27. AD9788 Noise Spectral Density vs. Digital Full-Scale Single-Tone
Input, fDATA = 200 MSPS, 2× Interpolation
2×
8×
07
09
8-
0
88
fOUT (MHz)
NS
D
(
d
Bm
/H
z)
–170
–166
–162
–158
–154
–150
–146
–142
0
1020
3040
50
4×
Figure 28. AD9788 Noise Spectral Density vs. fOUT, Multitone Input,
fDATA = 100 MSPS