AD9261 datasheet(11/29 Pages) AD

11 / 29 page

AD9261

Rev. 0 | Page 10 of 28

All power supplies set to 1.8 V, 640 MHz sample rate, 2 V p-p differential input, 0.5 V internal reference, PLL disabled, AIN = −2.0 dBFS,

10 MHz bandwidth, output data rate 40 MSPS, TA = 25°C, unless otherwise noted.

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FREQUENCY (MHz)

BANDWIDTH: 10MHz

DATA RATE: 40MSPS

fIN: 2.4MHz AT –2dBFS

SNR: 83.2dB

SFDR: 92.6dBc

Figure 8. Single-Tone FFT with fIN = 2.4 MHz

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FREQUENCY (MHz)

BANDWIDTH: 10MHz

DATA RATE: 40MSPS

fIN: 4.2MHz AT –2dBFS

SNR: 83.1dB

SFDR: 91.5dBc

Figure 9. Single-Tone FFT with fIN = 4.2 MHz

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FREQUENCY (MHz)

BANDWIDTH: 10MHz

DATA RATE: 40MSPS

fIN: 8.4MHz AT –2dBFS

SNR: 83dB

SFDR: 105.7dBc

Figure 10. Single-Tone FFT with fIN = 8.4 MHz

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FREQUENCY (MHz)

BANDWIDTH: 10MHz

DATA RATE: 40MSPS

fIN1: 2.1MHz AT –8dBFS

fIN2: 2.4MHz AT –8dBFS

SFDR: 91.2dBc

Figure 11. Two-Tone FFT with fIN1 = 2.1 MHz and fIN2 = 2.4 MHz

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FREQUENCY (MHz)

BANDWIDTH: 10MHz

DATA RATE: 40MSPS

fIN1: 3.6MHz AT –8dBFS

fIN2: 4.2MHz AT –8dBFS

SFDR: 92.2dBc

Figure 12. Two-Tone FFT with fIN1 = 3.6 MHz and fIN2 = 4.2 MHz

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FREQUENCY (MHz)

BANDWIDTH: 10MHz

DATA RATE: 40MSPS

fIN1: 7.2MHz AT –8dBFS

fIN2: 8.4MHz AT –8dBFS

SFDR: 93dBc

Figure 13. Two-Tone FFT with fIN1 = 7.2 MHz and fIN2 = 8.4 MHz

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