AD9121 datasheet(13/61 Pages) AD

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AD9121

Data Sheet

Rev. B | Page 12 of 60

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–79

100

150

200

250

300

350

400

450

fOUT (MHz)

–76

fDATA = 250MSPS

fDATA = 400MSPS

Figure 10. Highest Digital Spur vs. f

OUT over fDATA, 2× Interpolation,

Digital Scale = 0 dBFS, I

FS = 20 mA

–60

–65

–70

–75

–80

–85

100

150

200

250

300

350

400

450

fOUT (MHz)

fDATA = 100MSPS

fDATA = 200MSPS

Figure 11. Highest Digital Spur vs. f

OUT over fDATA, 4× Interpolation,

Digital Scale = 0 dBFS, I

FS = 20 mA

–60

–95

–90

–85

–80

–75

–70

–65

100

200

300

400

500

600

700

fOUT (MHz)

fDATA = 100MSPS

fDATA = 150MSPS

Figure 12. Highest Digital Spur vs. f

OUT over fDATA, 8× Interpolation,

Digital Scale = 0 dBFS, I

FS = 20 mA

START 1.0MHz

#RES BW 10kHz

VBW 10kHz

STOP 500.0MHz

SWEEP 6.017s (601 PTS)

2× INTERPOLATION,

SINGLE-TONE SPECTRUM,

fDATA = 250MSPS,

fOUT = 101MHz

Figure 13. Single-Tone Spectrum, 2× Interpolation,

DATA = 250 MSPS, fOUT = 101 MHz

START 1.0MHz

#RES BW 10kHz

VBW 10kHz

STOP 800.0MHz

SWEEP 9.634s (601 PTS)

4× INTERPOLATION,

SINGLE-TONE SPECTRUM,

fDATA = 200MSPS,

fOUT = 151MHz

Figure 14. Single-Tone Spectrum, 4× Interpolation,

DATA = 200 MSPS, fOUT = 151 MHz

START 1.0MHz

#RES BW 10kHz

VBW 10kHz

STOP 800.0MHz

SWEEP 9.634s (601 PTS)

8× INTERPOLATION,

SINGLE-TONE SPECTRUM,

fDATA = 100MSPS,

fOUT = 131MHz

Figure 15. Single-Tone Spectrum, 8× Interpolation,

DATA = 100 MSPS, fOUT = 131 MHz

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