Datasheet

AD9776A/AD9778A/AD9779A
Rev. B | Page 17 of 56
100
50
0
100
f
OUT
(MHz)
SFDR (dBc)
90
80
70
60
20 40 60 80
f
DATA
= 200MSPS
f
DATA
= 160MSPS
f
DATA
= 250MSPS
06452-011
Figure 12. AD9779A Out-of-Band SFDR vs. f
OUT
,
2× Interpolation
100
50
0
100
f
OUT
(MHz)
SFDR (dBc)
90
80
70
60
20 40 60 80
f
DATA
= 150MSPS
f
DATA
= 100MSPS
f
DATA
= 200MSPS
06452-012
Figure 13. AD9779A Out-of-Band SFDR vs. f
OUT
,
4× Interpolation
100
50
0
50
f
OUT
(MHz)
SFDR (dBc)
90
80
70
60
10 20 30 40
f
DATA
= 50MSPS
f
DATA
= 100MSPS
f
DATA
= 125MSPS
06452-013
Figure 14. AD9779A Out-of-Band SFDR vs. f
OUT
,
8× Interpolation
100
50
0
40
f
OUT
(MHz)
SFDR (dBc)
90
80
70
60
10 20 30
PLL OFF
PLL ON
06452-014
Figure 15. AD9779A In-Band SFDR vs. f
OUT
,
4× Interpolation, f
DATA
= 100 MSPS, PLL On/Off
100
50
0
80
f
OUT
(MHz)
SFDR (dBc)
90
80
70
60
20 40 60
–3dBFS
0dBFS
–6dBFS
06452-015
Figure 16. AD9779A In-Band SFDR vs. f
OUT
,
Digital Full Scale
100
50
0
80
f
OUT
(MHz)
SFDR (dBc)
90
80
70
60
20 40 60
10mA
20mA
30mA
06452-016
Figure 17. AD9779A In-Band SFDR vs. f
OUT
,
Output Full-Scale Current