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  • Re: injection locked oscillator phase noise simulation using pss+pnoise

    Here is the article: When simulating an injection locked oscillator and looking at the startup waveform, you are looking for the point where the timing of the oscillator output is stable with reference to the injection source. Note that the amplitude must be at steady-state as well. When you set up your...
    Posted to RF Design (Forum) by Tawna on Fri, May 23 2014
  • how to separate a noise contributor in pnoise analysis?

    HI folks, My question is: in pnoise simulation, can I activate/deactivate specific voltage sources or instances as only noise contributor? For example, in transient noise analysis, Virtuoso provdes a feature, 'Noise Contribution On/Off'' with a given instance list. I am looking for similar...
    Posted to RF Design (Forum) by JaeWook on Wed, Mar 5 2014
  • Re: Is the issue of "positive phase noise" related to MMSIM version?

    Hi bjbit, Andrew and I have conferred on your issue. Given that this is going to require some more detailed investigation and checking with supported releases, it would be best if you contact Customer Support for assistance. best regards, Tawna
    Posted to RF Design (Forum) by Tawna on Fri, Feb 21 2014
  • Re: Is the issue of "positive phase noise" related to MMSIM version?

    Hi bjbit, This is discussed in Cadence Online Support article 1832229. Here is the complete link: http://support.cadence.com/wps/mypoc/cos?uri=deeplinkmin:ViewSolution;solutionNumber=1832229 Starting around MMSIM 7.2, there is a parameter called "lorentzian". This parameter determines if the...
    Posted to RF Design (Forum) by Tawna on Thu, Feb 20 2014
  • PN function in Visualizaion & Anaysis XL Calculator

    Hi, I have a question about the PN function, available in the Calculator. Is an output phase noise spectrum is a signle sideband or a double sideband spectrum? To avoid any confusions, I mean the 'double sideband' by a spectrum 3dB more than the 'single sideband' in magnitude. Thanks...
    Posted to RF Design (Forum) by JaeWook on Tue, Feb 18 2014
  • RF Front end Receiver

    Hi, We are designing a RF Front end receiver in which we are proceeding with a PSS, PAC, etc analyses..... 1. We have plotted Conversion Gain Vs LO power by doing PSS followed by PAC analyses. So, can we plot the same CG by varying RF. 2. Can we plot Noise Figure Vs RF frequency. Please, get me the valuable...
    Posted to RF Design (Forum) by Kiran1507 on Mon, Jan 20 2014
  • Re: Clarification regarding AM & PM component simulation in PNOISE (particularly for Oscillator)

    Hi RF Stuff, This sort of thing should really be addressed by contacting Cadence Customer Support ( http://support.cadence.com ) rather than on the forum. I cannot answer these questions at the moment (I have my "day job" to attend to! <grin>) but I strongly recommend that you look at...
    Posted to RF Design (Forum) by Tawna on Thu, Jul 11 2013
  • pnoise jitter noise contribution

    hi, i am running pss and pnoise on a driven circuit using noisetype=jitter this simulation provide me the integrated rms jitter. Question1: How can i find out the individual noise contributor in this simulation? I ask because i read somewhere on the help manual that noise seperation can only be done...
    Posted to RF Design (Forum) by potsticker on Fri, Jun 21 2013
  • Phase noise plot

    Hi, I have been doing a Pnoise analysis . Unfortunately I was unable to plot the phase noise response. My design was setup was described below. My apparatus was a PLL with a fixed divider ratio of 20 and output frequency of 500Mz In PSS analysis I have set the beat frequency as reference frequency ie...
    Posted to Custom IC Design (Forum) by Jithin on Wed, Apr 10 2013
  • Pnoise analysis

    Hi, I have been doing a pnoise analysis for a PLL . Looking into the Pnoise simulation profile I have found a tab regarding thevalue for " Reference sideband" .What is the value that I should put while my "Maximum number of sidebands =7". With Regards, Jithin K
    Posted to Custom IC Design (Forum) by Jithin on Wed, Apr 3 2013
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