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phase noise of divider

I need to simulate the phase noise of a divider (or, more generally, simulate the phase noise on a non-sinusoidal signal).   Most straightforward way is SpectreRF -> pss -> pnoise.  There used to be a Cadence application Note about how to do this.  I remember it had to do with simulating pnoise with 'time-domain' option, then dividing the voltage noise [V/sqrt(hz)] by the signal slope to obtain time noise [sec/sqrt(Hz)], then multiply by 2.pi.freq to obtain phase noise [radians/sqrt(hz)].  But since I don't remember the details, can anybody provide me with this application note?   Thanks in advance Image may be NSFW.
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