AD9650 datasheet(15/44 Pages) AD

15 / 44 page

AD9650

Rev. 0 | Page 15 of 44

TYPICAL PERFORMANCE CHARACTERISTICS

AVDD = 1.8 V, DRVDD = 1.8 V, rated sample rate, DCS disabled, 1.35 V internal reference, 2.7 V p-p differential input, VIN = −1.0 dBFS,

and 32k sample, TA = 25°C, unless otherwise noted.

AD9650-25

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FREQUENCY (MHz)

25MSPS

9.7MHz @ –1dBFS

SNR = 82.4dB (83.4dBFS)

SFDR = 95.8dBc

Figure 8. AD9650-25 Single-Tone FFT with fIN = 9.7 MHz

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FREQUENCY (MHz)

25MSPS

30.3MHz @ –1dBFS

SNR = 80.6dB (81.6dBFS)

SFDR = 84.6dBc

Figure 9. AD9650-25 Single-Tone FFT with fIN = 30.3 MHz

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FREQUENCY (MHz)

25MSPS

70.1MHz @ –1dBFS

SNR = 78.5dB (79.5dBFS)

SFDR = 87.2dBFS

Figure 10. AD9650-25 Single-Tone FFT with fIN = 70.1 MHz

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FREQUENCY (MHz)

25MSPS

9.7MHz @ –6dBFS

SNR = 77.9dB (83.9dBFS)

SFDR = 99dBc

Figure 11. AD9650-25 Single-Tone FFT with fIN = 9.7 MHz at −6 dBFS with

Dither Disabled

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02468

FREQUENCY (MHz)

25MSPS

9.7MHz @ –6dBFS

SNR = 77.4dB (83.4dBFS)

SFDR = 101.3dBc

Figure 12. AD9650-25 Single-Tone FFT with fIN = 9.7 MHz at −6 dBFS with

Dither Enabled

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INPUT AMPLITUDE (dBFS)

SNR (dB)

SNR (dBFS)

SFDR (dBc)

SFDR (dBFS)

Figure 13. AD9650-25 Single-Tone SNR/SFDR vs. Input Amplitude (AIN)

with fIN = 9.7 MHz

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