AD9776A/AD9778A/AD9779A
Rev. B | Page 22 of 56
–150
–170
0
100
f
OUT
(MHz)
NS
D (
d
B
m
/Hz
)
–154
–158
–162
–166
20
40
60
80
f
DAC
= 800MSPS
f
DAC
= 400MSPS
f
DAC
= 200MSPS
06
45
2-
0
39
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)
NS
D (
d
B
m
/Hz
)
–154
–158
–162
–166
20
40
60
80
f
DAC
= 800MSPS
f
DAC
= 400MSPS
f
DAC
= 200MSPS
06
45
2-
0
40
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
IN
L
(
12
-B
IT
LS
B
)
–0.4
512
1024
2560
2048
1536
3072
3584
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
06
45
2-
04
1
Figure 44. AD9776A Typical INL
0.20
0
4096
CODE
D
N
L (
12
-B
IT
LS
B
)
2048
–0.20
512
1024
1536
2560
3072
3584
0.15
0.10
0.05
0
–0.05
–0.10
–0.15
06
45
2-
04
2
Figure 45. AD9776A Typical DNL
100
50
0
400
f
OUT
(MHz)
IM
D (
d
Bc)
40
80
120
160
200
240
280
320
360
4× 200MSPS
4× 100MSPS
4× 150MSPS
95
90
85
80
75
70
65
60
55
06
45
2-
0
43
Figure 46. AD9776A IMD vs. f
OUT
,
4× Interpolation
100
50
0
100
f
OUT
(MHz)
SF
D
R
(
d
B
c)
90
80
70
60
20
40
60
80
f
DATA
= 250MSPS
f
DATA
= 200MSPS
f
DATA
= 160MSPS
06
45
2-
0
44
Figure 47. AD9776A In-Band SFDR vs. f
OUT
,
2× Interpolation
