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AD9779A-EBZ Datasheet(PDF) 19 Page - Analog Devices |
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AD9779A-EBZ Datasheet(HTML) 19 Page - Analog Devices |
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19 / 56 page ![]() AD9776A/AD9778A/AD9779A Rev. B | Page 19 of 56 100 50 55 60 65 70 75 80 85 90 95 0 400 fOUT (MHz) 80 160 240 360 320 40 120 200 280 0dBFS –3dBFS –6dBFS Figure 24. AD9779A IMD Performance vs. fOUT, Digital Full-Scale Input Over Output Frequency, 4× Interpolation, fDATA = 200 MSPS 100 50 55 60 65 70 75 80 85 90 95 0 400 fOUT (MHz) 80 160 240 360 320 40 120 200 280 20mA 10mA 30mA Figure 25. AD9779A IMD Performance vs. fOUT, Full-Scale Output Current Over Output Frequency, 4× Interpolation, fDATA = 200 MSPS STOP 400.0MHz SWEEP 1.203s (601 pts) VBW 20kHz START 1.0MHz *RES BW 20kHz REF 0dBm *PEAK log 10dB LGAV 51 W1 S3 £(f): FTUN SWP S2 FC AA *ATTEN 20dB EXT REF DC-COUPLED Figure 26. AD9779A Single Tone, 4× Interpolation, fDATA = 100 MSPS, fOUT = 30 MHz STOP 400.0MHz SWEEP 1.203s (601 pts) VBW 20kHz START 1.0MHz *RES BW 20kHz REF 0dBm *PEAK Log 10dB LGAV 51 W1 S3 £(f): FTUN SWP S2 FC AA *ATTEN 20dB EXT REF DC-COUPLED Figure 27. AD9779A Two-Tone Spectrum, 4× Interpolation, fDATA = 100 MSPS, fOUT = 30 MHz, 35 MHz –142 –146 –150 –154 –158 –162 –166 –170 0 fOUT (MHz) 20 40 60 80 0dBFS –3dBFS –6dBFS Figure 28. AD9779A Noise Spectral Density vs. fOUT, Digital Full-Scale Over Output Frequency of Single-Tone Input, 2× Interpolation, fDATA = 200 MSPS –150 –170 0 100 fOUT (MHz) –154 –158 –162 –166 20 40 60 80 fDAC = 800MSPS fDAC = 400MSPS fDAC = 200MSPS Figure 29. AD9779A Noise Spectral Density vs. fOUT, fDAC Over Output Frequency for Eight-Tone Input with 500 kHz Spacing, fDATA = 200 MSPS |
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