AD9231 datasheet(12/36 Pages) AD

12 / 36 page

AD9231

Rev. 0 | Page 12 of 36

TYPICAL PERFORMANCE CHARACTERISTICS

AD9231-80

AVDD = 1.8 V; DRVDD = 1.8 V, maximum sample rate, 2 V p-p differential input, 1.0 V internal reference; AIN = −1.0 dBFS, DCS

disabled, unless otherwise noted.

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FREQUENCY (MHz)

80MSPS

9.7MHz @ –1dBFS

SNR = 70.2dB (71.2dBFS)

SFDR = 93.6dBc

Figure 6. AD9231-80 Single-Tone FFT with fIN = 9.7 MHz

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FREQUENCY (MHz)

80MSPS

30.6MHz @ –1dBFS

SNR = 70.1dB (71.1dBFS)

SFDR = 94.4dBc

Figure 7. AD9231-80 Single-Tone FFT with fIN = 30.6 MHz

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FREQUENCY (MHz)

80MSPS

69MHz @ –1dBFS

SNR = 69.9dB (70.9dBFS)

SFDR = 94.3dBc

Figure 8. AD9231-80 Single-Tone FFT with fIN = 69 MHz

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FREQUENCY (MHz)

80MSPS

100.3MHz @ –1dBFS

SNR = 69.5dB (70.5dBFS)

SFDR = 87.7dBc

Figure 9. AD9231-80 Single-Tone FFT with fIN = 100.3 MHz

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FREQUENCY (MHz)

80MSPS

210.3MHz @ –1dBFS

SNR = 67.9dB (68.9dBFS)

SFDR = 83.2dBc

Figure 10. AD9231-80 Single-Tone FFT with fIN = 210.3 MHz

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FREQUENCY (MHz)

F2 – F1 2F2 – F1

2F1 + F2

F1 + F2

2F2 – F1

2F1 – F2

80MSPS

28.3 @ –7dBFS

30.6 @ –7dBFS

SFDR = 90dBc

Figure 11. AD9231-80 Two-Tone FFT with fIN1 = 28.3 MHz and fIN2 = 30.6 MHz

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