Datasheet

AD9122
Rev. B | Page 12 of 60
–
69
–70
–71
–72
–73
–74
–75
–77
–78
–79
0 50 100 150 200 250 300 350 400 450
HIGHEST DIGITAL SPUR (dBc)
f
OUT
(MHz)
–76
f
DATA
= 250MSPS
f
DATA
= 400MSPS
08281-107
Figure 10. Highest Digital Spur vs. f
OUT
over f
DATA
, 2× Interpolation,
Digital Scale = 0 dBFS, I
FS
= 20 mA
–
60
–65
–70
–75
–80
–85
0 50 100 150 200 250 300 350 400 450
HIGHEST DIGITAL SPUR (dBc)
f
OUT
(MHz)
f
DATA
= 100MSPS
f
DATA
= 200MSPS
08281-108
Figure 11. Highest Digital Spur vs. f
OUT
over f
DATA
, 4× Interpolation,
Digital Scale = 0 dBFS, I
FS
= 20 mA
–
60
–95
–90
–85
–80
–75
–70
–65
0 100 200 300 400 500 600 700
HIGHEST DIGITAL SPUR (dBc)
f
OUT
(MHz)
f
DATA
= 100MSPS
f
DATA
= 150MSPS
08281-109
Figure 12. Highest Digital Spur vs. f
OUT
over f
DATA
, 8× Interpolation,
Digital Scale = 0 dBFS, I
FS
= 20 mA
08281-110
START 1.0MHz
#RES BW 10kHz
VBW 10kHz STOP 500.0MHz
SWEEP 6.017s (601 PTS)
2× INTERPOLATION,
SINGLE-TONE SPECTRUM,
f
DATA
= 250MSPS,
f
OUT
= 101MHz
Figure 13. Single-Tone Spectrum, 2× Interpolation,
f
DATA
= 250 MSPS, f
OUT
= 101 MHz
08281-111
START 1.0MHz
#RES BW 10kHz
VBW 10kHz STOP 800.0MHz
SWEEP 9.634s (601 PTS)
4× INTERPOLATION,
SINGLE-TONE SPECTRUM,
f
DATA
= 200MSPS,
f
OUT
= 151MHz
Figure 14. Single-Tone Spectrum, 4× Interpolation,
f
DATA
= 200 MSPS, f
OUT
= 151 MHz
08281-112
START 1.0MHz
#RES BW 10kHz
VBW 10kHz STOP 800.0MHz
SWEEP 9.634s (601 PTS)
8× INTERPOLATION,
SINGLE-TONE SPECTRUM,
f
DATA
= 100MSPS,
f
OUT
= 131MHz
Figure 15. Single-Tone Spectrum, 8× Interpolation,
f
DATA
= 100 MSPS, f
OUT
= 131 MHz