AD9237 datasheet(11/28 Pages) AD

11 / 28 page

AD9237

Rev. 0 | Page 11 of 28

TYPICAL PERFORMANCE CHARACTERISTICS

AVDD = 3.0 V, DRVDD = 2.5 V, maximum sample rate with DCS disabled, TA = 25°C, 2 V p-p differential input, AIN = –0.5 dBFS,

VREF = 1.0 V internal, FFT length 16 K, unless otherwise noted.

FREQUENCY (MHz)

–20

–40

–60

–80

–100

–120

010

SNR = 66.9dBc

SFDR = 87.0dBc

Figure 8. AD9237-20 10 MHz FFT

FREQUENCY (MHz)

–20

–40

–60

–80

–100

–120

020

CLOCK FREQUENCY (MSPS)

10.0

20.0

17.5

15.0

12.5

SNR

SFDR

418

SNR = 66.8dBc

SFDR = 83.1dBc

Figure 9. AD9237-40 20 MHz FFT

FREQUENCY (MHz)

–20

–40

–60

–80

–100

–120

SNR = 66.0dBc

SFDR = 78.6dBc

30 32.5

Figure 10. AD9237-65 70 MHz FFT

Figure 11. AD9237-20 SNR/SFDR vs. Clock Frequency with fIN = 10 MHz

CLOCK FREQUENCY (MSPS)

SFDR

SNR

Figure 12. AD9237-40 SNR/SFDR vs. Clock Frequency with fIN = 20 MHz

CLOCK FREQUENCY (MSPS)

SNR

SFDR

Figure 13. AD9237-65 SNR/SFDR vs. Clock Frequency with fIN = 35 MHz

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