AD9642 datasheet(14/29 Pages) AD

14 / 29 page

Data Sheet

AD9642

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INPUT AMPLITUDE (dBFS)

SFDR (dBFS)

IMD3 (dBc)

IMD3 (dBFS)

SFDR (dBc)

–90.0 –81.7 –73.4 –65.1 –56.8 –48.5 –40.2 –31.9 –23.6 –15.3 –7.0

Figure 22. AD9642-210 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN)

with fIN1 = 89.12 MHz, fIN2 = 92.12 MHz, fS = 210 MSPS

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INPUT AMPLITUDE (dBFS)

SFDR (dBFS)

IMD3 (dBc)

IMD3 (dBFS)

SFDR (dBc)

–90.0 –81.7 –73.4 –65.1 –56.8 –48.5 –40.2 –31.9 –23.6 –15.3 –7.0

Figure 23. AD9642-210 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN)

with fIN1 = 184.12 MHz, fIN2 = 187.12 MHz, fS = 210 MSPS

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FREQUENCY (MHz)

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210MSPS

89.12MHz @ –7dBFS

92.12MHz @ –7dBFS

SFDR = 89dBc (96dBFS)

Figure 24. AD9642-210 Two-Tone FFT with fIN1 = 89.12 MHz, fIN2 = 92.12 MHz

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FREQUENCY (MHz)

210MSPS

184.12MHz AT –7dBFS

187.12MHz AT –7dBFS

SFDR = 88dBc (95dBFS)

Figure 25. AD9642-210 Two-Tone FFT with fIN1 = 184.12 MHz, fIN2 = 187.12 MHz

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SAMPLE RATE (MSPS)

SNR (dBFS)

SFDR (dBc)

Figure 26. AD9642-210 Single-Tone SNR/SFDR vs. Sample Rate (fS)

with fIN = 90 MHz

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OUTPUT CODE

0.852 LSB rms

16,384 TOTAL HITS

Figure 27. AD9642-210 Grounded Input Histogram, fS = 210 MSPS

Rev. B | Page 13 of 28

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