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pnoise,tstab

  • Re: Phase Noise vs frequency graph problem

    Thanks Frank for replying. Yes, I have seen that post-it explains the equation which spectre uses to find the pnoise...but it doesnt help me to get the right graph with negative values of pn. I am doing the pss-pnoise simulation using the following settings: PSS : Harmonic Balance beat freq - 37.93G...
    Posted to Custom IC Design (Forum) by rohan kr on Wed, Mar 28 2012
  • Phase noise sensitivity to tstab

    Hi, I am simulating a ~25GHz LC oscillator using harmonic balance and pnoise, then calculating the phase noise at 10MHz offset (this offset is added as a specific point to pnoise). Even with the most aggressive accuracy settings (harm=40,steadyratio=1e-3,reltol=1e-6,vabstol=1e-9,iabstol=1e-12), the phase...
    Posted to RF Design (Forum) by Soner on Mon, May 3 2010
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