Datasheet

AD9776A/AD9778A/AD9779A
Rev. B | Page 22 of 56
–
150
–170
0
100
f
OUT
(MHz)
NSD (dBm/Hz)
–154
–158
–162
–166
20 40 60 80
f
DAC
= 800MSPS
f
DAC
= 400MSPS
f
DAC
= 200MSPS
06452-039
Figure 42. AD9778A Noise Spectral Density vs. f
OUT
for Eight-Tone Input with 500 kHz Spacing, f
DATA
= 200 MSPS
–
150
–170
0
100
f
OUT
(MHz)
NSD (dBm/Hz)
–154
–158
–162
–166
20 40 60 80
f
DAC
= 800MSPS
f
DAC
= 400MSPS
f
DAC
= 200MSPS
06452-040
Figure 43. AD9778A Noise Spectral Density vs. f
OUT
with Single-Tone Input at −6 dBFS, f
DATA
= 200 MSPS
0.4
0
4096
CODE
INL (12-BIT LSB)
–0.4
512 1024 256020481536 3072 3584
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
06452-041
Figure 44. AD9776A Typical INL
0.20
0
4096
CODE
DNL (12-BIT LSB)
2048
–0.20
512 1024 1536 2560 3072 3584
0.15
0.10
0.05
0
–0.05
–0.10
–0.15
06452-042
Figure 45. AD9776A Typical DNL
100
50
0
400
f
OUT
(MHz)
IMD (dBc)
40 80 120 160 200 240 280 320 360
4× 200MSPS
4× 100MSPS
4× 150MSPS
95
90
85
80
75
70
65
60
55
06452-043
Figure 46. AD9776A IMD vs. f
OUT
,
4× Interpolation
100
50
0
100
f
OUT
(MHz)
SFDR (dBc)
90
80
70
60
20 40 60 80
f
DATA
= 250MSPS
f
DATA
= 200MSPS
f
DATA
= 160MSPS
06452-044
Figure 47. AD9776A In-Band SFDR vs. f
OUT
,
2× Interpolation