Datasheet

AD9785/AD9787/AD9788
Rev. A | Page 14 of 64
07098-070
f
OUT
(MHz)
ACLR (dBc)
–90
–85
–80
–75
–70
–65
–60
–
55
0 20 40 60 80 100 120 140 160 180 200 220 240 260
THIRD ADJ CHAN
FIRST ADJ CHAN
SECOND ADJ CHAN
Figure 11. AD9787 ACLR, 4× Interpolation, f
DATA
= 122.88 MSPS,
Amplitude = −3 dB
50
60
70
80
90
100
0 40 80 120 160 200 240 280 320 360 400
07098-071
f
OUT
(MHz)
IMD (dBc)
100MSPS
150MSPS
200MSPS
Figure 12. AD9787 IMD vs. f
OUT
, 4× Interpolation
55
60
65
70
75
80
85
90
95
20 40 60 80 100
50
100
0
07098-072
f
OUT
(MHz)
SFDR (dB)
160MSPS
250MSPS
200MSPS
Figure 13. AD9787 In-Band SFDR vs. f
OUT
, 2× Interpolation
–170
–166
–162
–158
–154
–150
–146
–142
1×
2×
4×
20 40 60 80 100
0
07098-073
f
OUT
(MHz)
NSD (dBm/Hz)
Figure 14. AD9787 Noise Spectral Density vs. f
OUT
over Output Frequency of
Multitone Input, f
DATA
= 200 MSPS
–170
–166
–162
–158
–154
–150
–146
–
142
1×
2×
4×
20 40 60 80 100
0
07098-074
f
OUT
(MHz)
NSD (dBm/Hz)
Figure 15. AD9787 Noise Spectral Density vs. f
OUT
, Single-Tone Input,
f
DATA
= 200 MSPS
–90
0 260
f
OUT
(MHz)
ACLR (dBc)
–
55
4020 60 80 100 120 140 160 180 200 220 240
–85
–80
–75
–70
–65
–60
07098-076
0 dBFS PLL ON
0 dBFS PLL OFF
–3 dBFS PLL OFF
–6 dBFS PLL OFF
Figure 16. AD9788 ACLR for First Adjacent Band WCDMA, 4× Interpolation,
f
DATA
= 122.88 MSPS, NCO Translates Baseband Signal to IF