Datasheet

AD9780/AD9781/AD9783 Data Sheet
Rev. B | Page 12 of 32
90
40
45
50
55
60
65
70
75
80
85
0 50 100 150 200 250 300 350 400 450 500
SFDR (dBc)
f
OUT
(MHz)
500MSPS
400MSPS
250MSPS
06936-017
Figure 17. AD9783 SFDR vs. f
OUT
Over f
DAC
in Baseband and Mix Modes,
FS = 20 mA
100
40
45
50
55
60
65
70
75
80
85
90
95
0 25 50 75 100 125 150 175 200 225 250
SFDR (dBc)
f
OUT
(MHz)
10mA
30mA
20mA
06936-018
Figure 18. AD9783 SFDR vs. f
OUT
Over Analog Output, T
A
= 25°C, at 500 MSPS
SFDR (dBc)
f
OUT
(MHz)
100
40
45
50
55
60
65
70
75
80
85
90
95
0 25 50 75 100 125 150 175 200 225 250
–3dBFS
0dBFS
–6dBFS
06936-019
Figure 19. AD9783 SFDR vs. f
OUT
Over Digital Input Level,
T
A
= 25°C, at 500 MSPS, FS = 20 mA
SFDR (dBc)
f
OUT
(MHz)
100
40
45
50
55
60
65
70
75
80
85
90
95
0 25 50 75 100 125 150 175 200 225 250
+25°C
–40°C
+85°C
06936-020
Figure 20. AD9783 SFDR vs. f
OUT
Over Temperature, at 500 MSPS, FS = 20 mA
IMD (dBc)
f
OUT
(MHz)
100
40
45
50
55
60
65
70
75
80
85
90
95
0 50 100 150 200 500250 300 350 400
450
06936-021
500MSPS
400MSPS
250MSPS
Figure 21. AD9783 IMD vs. f
OUT
Over f
DAC
in Baseband and Mix Modes,
FS = 20 mA
IMD (dBc)
f
OUT
(MHz)
0 25 50 75 100 125 150 175 200 225 250
06936-022
40
45
50
55
60
65
70
75
80
85
90
95
100
10mA
20mA
30mA
Figure 22. AD9783 IMD vs. f
OUT
Over Analog Output, T
A
= 25°C, at 500 MSPS