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  • ELC not using spectre

    ELC seems to always read in files as spice format even though I have "simulator lang = spectre" without the quotes at the top of every .scs file. In addition I have: set_var EC_SIM_NAME "spectre" set_var EC_SIM_TYPE "spectre" in my script every time before I do any database...
    Posted to Digital Implementation (Forum) by Khenglish on Wed, Jul 23 2014
  • Virtuosity: 21 Things I Learned in May and June 2014 by Browsing Cadence Online Support

    Application Notes 1. Setting PVS to QRC av_extracted Flow with tsmc28 (& tsmc40 ) LVS Shows you how to put in place the PVS(LVS)-QRC(av_extracted) view using TSMC files. Videos 2. Mismatch Contribution in Virtuoso Analog Design Environment GXL Mismatch contribution analysis is a Monte Carlo post...
    Posted to Custom IC Design (Weblog) by stacyw on Thu, Jul 3 2014
  • How to not netlist a certain symbol

    Good day! I want to make library that when added to schematic, the instances are not netlisted during spectre simulation. The symbols does not have models and are designed for CDF parameter extraction only. I have a reference LIBRARY with this property but I can not find out how it was implemented. I...
    Posted to Custom IC SKILL (Forum) by alainmelan on Thu, Jul 3 2014
  • ADExl problem with bus notation

    Running a spectre simulation from adexl I am getting this error: Error found by spectre during circuit read-in. ERROR (SFE-874): "input.scs" 3633: Unexpected operator ">". Expected end of file or end of line. The interesting part of scs netlist is listed below. Please note that...
    Posted to Custom IC Design (Forum) by sram8t on Mon, Jun 16 2014
  • Phase spectrum of a phase modulated signal

    I am working on open loop modulation techniques which require me to analyze the phase spectrum of a signal. Are there any techniques by which I can measure the phase spectrum of the modulated signal with respect to a reference signal.(Average frequency of the modulated signal is known)
  • Virtuosity: 19 Things I Learned in April 2014 by Browsing Cadence Online Support

    Plenty to keep you busy this month. Lots of RAKs, videos, and new Quick Start Guides and FAQs. Application Notes 1. Using Annotation Browser with Virtuoso IPVS Learn how to invoke the Annotation Browser and have it always appear docked to a specific location of the layout window, how to customize the...
    Posted to Custom IC Design (Weblog) by stacyw on Thu, May 22 2014
  • Re: K Stability factor

    Hi Hamid, The equations used for K are the standard equations in any well known microwave book. Let me see if I can figure out how to upload the image. You can also see the information in the SpectreRF User Guide. Here's the direct link:;src...
    Posted to RF Design (Forum) by Tawna on Mon, Apr 28 2014
  • Broadband SPICE -- New Tool for S-Parameter Simulation in Spectre RF

    Hi All, Here's another great new feature that I've found very helpful... Broadband SPICE is a new tool for S-parameter simulation in Spectre RF. In the MMSIM13.1.1 ( MMSIM13.1 USR1) release (now available on, a new interpolation method, bbspice , has been introduced...
    Posted to RF Design (Weblog) by Tawna on Thu, Apr 24 2014
  • can't plot waveform while simulating in cadence virtuoso via spectre

    Hello! I can't plot waveform while simulating in cadence virtuoso IC 6.1.5 via spectre. When I initiate Netlist and Run (green button), these are the results: Delete psf data in /home/eda/simulation/R_div/spectre/schematic/psf. generate netlist... Begin Incremental Netlisting Apr 6 23:23:36 2014...
    Posted to Custom IC Design (Forum) by leangineer on Tue, Apr 8 2014
  • Monte carlo analysis

    sir i am ,, using IC 5.10.40 in cadence , ,, I want to make monte carlo analysis for my circuit , but my seniors here are telling that monte carlo is not working here in the version ,, how can i check that ?.. i am just beginer , please reply ,,
    Posted to RF Design (Forum) by rakesh reddy on Thu, Mar 20 2014
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