Datasheet

Data Sheet AD9741/AD9743/AD9745/AD9746/AD9747
Rev. A | Page 15 of 28
30mAFS
40
50
60
70
80
90
100
0 20 40 60
80 100
120
06569-036
f
OUT
(MHz)
SFDR (dBc)
10mAFS
20mAFS
Figure 13. AD9747 SFDR vs. Analog Output, 250 MSPS
–3dBFS
40
50
60
70
80
90
100
0 20 40 60 80 100 120
06569-037
f
IN
(MHz)
SFDR (dBc)
–6dBFS
0dBFS
Figure 14. AD9747 SFDR vs. Digital Input, 250 MSPS
60
65
70
75
80
85
90
10 20 30
40 50 60 70 80
90 100 110
RANGE OF POSSIBLE SFDR
PERFORMANCE IS DEPENDENT ON
INPUT DATA TIMING RELATIVE TO
THE DAC CLOCK. SEE INPUT DATA
TIMING SECTION.
06569-038
f
OUT
(MHz)
SFDR (dBc)
Figure 15. AD9747 SFDR vs. f
OUT
Over Input Data Timing
10mAFS
20mAFS
30mAFS
40
50
60
70
80
90
100
0 20 40 60 80
100
120
06569-039
f
OUT
(MHz)
IMD (dBc)
Figure 16. AD9747 IMD vs. Analog Output, 250 MSPS
0dBFS
–3dBFS
40
50
60
70
80
90
100
0 20 40 60 80 100 120
06569-040
f
IN
(MHz)
IMD (dBc)
–6dBFS
Figure 17. AD9747 IMD vs. Digital Input, 250 MSPS
f
OUT
(MHz)
60
65
70
75
80
85
90
20 30
40 50 60 70 80 90 100
11010
06569-041
IMD (dBc)
RANGE OF IMD PERFORMANCE IS
ESSENTIALLY INDEPENDENT OF
INPUT DATA TIMING RELATIVE TO
THE DAC CLOCK. SEE INPUT DATA
TIMING SECTION.
Figure 18. AD9747 IMD vs. f
OUT
Over Input Data Timing