AD9645 datasheet(12/36 Pages) AD

12 / 36 page

AD9645

Data Sheet

Rev. 0 | Page 12 of 36

TYPICAL PERFORMANCE CHARACTERISTICS

AD9645-80

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FREQUENCY (MHz)

80MSPS

9.7MHz AT –1dBFS

SNR = 74.6dB (75.6dBFS)

SFDR = 95.2dBc

Figure 9. Single-Tone 16k FFT with fIN = 9.7 MHz, fSAMPLE = 80 MSPS

–140

–120

–100

–80

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FREQUENCY (MHz)

80MSPS

30.5MHz AT –1dBFS

SNR = 74.3dB (75.3dBFS)

SFDR = 90.9dBc

Figure 10. Single-Tone 16k FFT with fIN = 30.5 MHz, fSAMPLE = 80 MSPS

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–120

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FREQUENCY (MHz)

80MSPS

70.2MHz AT –1dBFS

SNR = 73.4dB (74.4dBFS)

SFDR = 95.3dBc

Figure 11. Single-Tone 16k FFT with fIN = 70.2 MHz, fSAMPLE = 80 MSPS

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FREQUENCY (MHz)

80MSPS

139.5MHz AT –1dBFS

SNR = 71dB (72dBFS)

SFDR = 80.8dBc

Figure 12. Single-Tone 16k FFT with fIN = 139.5 MHz, fSAMPLE = 80 MSPS

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FREQUENCY (MHz)

80MSPS

200.5MHz AT –1dBFS

SNR = 68.9dB (69.9dBFS)

SFDR = 81.7dBc

Figure 13. Single-Tone 16k FFT with fIN = 200.5 MHz, fSAMPLE = 80 MSPS

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FREQUENCY (MHz)

80MSPS

200.5MHz AT –1dBFS

SNR = 70.8dB (71.8dBFS)

SFDR = 81.5dBc

Figure 14. Single-Tone 16k FFT with fIN = 200.5 MHz, fSAMPLE = 80 MSPS,

Clock Divide = Divide-by-8

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