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AD9208:Need to convert ADC Aperture Jitter to Phase Noise (dBc/Hz)

Question asked by Dwijen.Pandya on Dec 19, 2017
Latest reply on Dec 20, 2017 by UmeshJ


I am using AD9208 for one of my application.

The aperture jitter for AD9208 is mentioned as 55 fSecond in the datasheet.

I want to convert this number to phase noise in dBc/Hz.

Once I convert jitter to Integrated Noise, over what band width I should normalize it to get dBc/Hz number?

I am trying to evaluate effect of ADC jitter on the output sampled signal's phase noise.


I am going to use formula

Integrated Phase Noise = 10*Log[ {(Aperture Jitter * 2*PI*Fs)^2} / 2]


Let me know if any modification to the formula is needed.