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pnoise,PSS

  • 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
  • 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
  • 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 designing a PLL which gives an output frequency in the range (400-500)MHz to the reference input frequency of (20-25)MHz.So for doing the pnoise analysis I have added the PSS as well as Pnoise analysis I have made the following as setup for the analysis for a frequency of 500MHz. I have...
    Posted to Custom IC Design (Forum) by Jithin on Sun, Mar 3 2013
  • How to simulate the Noise figure in Pnoise from 1 stage to another?

    Hi there, I want to simulate the Noise figure for such a setup that first a band pass filter, then sample and hold, and then follower by amplifier, and ADC and so on. Can i get the noise figure from source to each stage with Pnoise? I understand that if the output is specified with voltage of two node...
    Posted to Custom IC Design (Forum) by zcam on Fri, Sep 28 2012
  • High frequency quadrature VCO design with good phase noise

    Hello everyone I am a newbie engineer starting my career in RF IC design and working on designing a high frequency VCO (38 GHz) with good phase noise characteristics. I am using Cadence IC6.1.5-64b.500 version and spectre simulator for the schemtic design and simulations. I have to do everything from...
    Posted to Custom IC Design (Forum) by rohan kr on Thu, Mar 29 2012
  • Jitter from pnoise simulation

    I'm desinnig a Time to digital converter and I would like to simulate the jitter of a driven buffer having a rising time of 350 ps. In my schematic, the buffer is driven by vpulse (ideal CLK @ 2 MHz) and I would like to simulate his output jitter. My setting of pss simulation is as follow: Beat frequency...
    Posted to RF Design (Forum) by moez on Fri, Mar 9 2012
  • SpectreRF AppNotes and Tutorials....Still One of our Best Kept Secrets!

    Some of you may remember the blog written several years ago " Shhhhh...SpectreRF Tutorials and AppNotes - One of Our Best Kept Secrets ". Well, the more things change...the more things stay the same! The location of these tutorials and appNotes still seems to be one of our best kept secrets...
    Posted to RF Design (Weblog) by Tawna on Mon, Jan 16 2012
  • Guidelines for Setting Pnoise/HBnoise Sidebands to Get Accurate Results

    I get quite a few questions from designers along the lines of "How do I set the number of pss/hb harmonics and pnoise/hbnoise sidebands in order to get accurate results?" Here are some general guidelines that I follow: The number of sidebands ( harmonics ) in the simulation can affect performance...
    Posted to RF Design (Weblog) by Tawna on Fri, Aug 5 2011
  • Q&A: TI Wireless Team Describes Advanced Phase-Noise Characterization for RF Oscillators Using SpectreRF

    In this interview, members of the Texas Instrument wireless group talk about the characterization effort initiated and completed last year between Cadence and IBM using TI RF designs as a pilot. The goal between the two teams was to optimize SpectreRF usage to successfully and efficiently simulate TI...
    Posted to RF Design (Weblog) by helenet on Wed, Jun 15 2011
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