AD6653 datasheet(20/80 Pages) AD

20 / 80 page

AD6653

Rev. 0 | Page 20 of 80

SECOND HARMONIC

THIRD HARMONIC

FREQUENCY (MHz)

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035

150MSPS

445.1MHz @ –1dBFS

SNR = 69.1dBc (70.1dBFS)

SFDR = 73.7dBc

fNCO = 429MHz

FREQUENCY (MHz)

Figure 25. AD6653-150 Single-Tone FFT with fIN = 445.1 MHz, fNCO = 429 MHz

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030

125MSPS

2.4MHz @ –1dBFS

SNR = 71.0dBc (72.0dBFS)

SFDR = 84.6dBc

fNCO = 15.75MHz

SECOND HARMONIC

THIRD HARMONIC

FREQUENCY (MHz)

Figure 26. AD6653-125 Single-Tone FFT with fIN = 2.4 MHz, fNCO = 15.75 MHz

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030

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FREQUENCY (MHz)

125MSPS

70.3MHz @ –1dBFS

SNR = 70.9dBc (71.9dBFS)

SFDR = 85.9dBc

fNCO = 78MHz

THIRD HARMONIC

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FREQUENCY (MHz)

125MSPS

30.3MHz @ –1dBFS

SNR = 70.9dBc (71.9dBFS)

SFDR = 90.7dBc

fNCO = 21MHz

THIRD

HARMONIC

Figure 27. AD6653-125 Single-Tone FFT with fIN = 30.3 MHz, fNCO = 21 MHz

Figure 28. AD6653-125 Single-Tone FFT with fIN = 70.3 MHz, fNCO = 78 MHz

125MSPS

140.1MHz @ –1dBFS

SNR = 70.6dBc (71.6dBFS)

SFDR = 86.1dBc

fNCO = 142MHz

THIRD HARMONIC

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FREQUENCY (MHz)

Figure 29. AD6653-125 Single-Tone FFT with fIN = 140.1 MHz, fNCO = 142 MHz

125MSPS

220.1MHz @ –1dBFS

SNR = 70.2dBc (71.2dBFS)

SFDR = 87.9dBc

fNCO = 231MHz

Figure 30. AD6653-125 Single-Tone FFT with fIN = 220.1 MHz, fNCO = 231 MHz

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