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ADE

  • Modeling Oscillators with Arbitrary Phase Noise Profiles

    When you need to include noisy oscillators in SpectreRF transceiver simulations, you have at least 3 options: 1) Semi-autonomous simulation is the most accurate approach, recommended whenever the transistor-level model of the oscillator is available. 2) rfLib/osc model is less accurate but it’s...
    Posted to RF Design (Weblog) by Tawna on Thu, May 24 2012
  • substrate noise analysis

    Hi All, I am designing a switching amplifier using a CMOS 65nm process with a normal QFN package. So the noise induced by the switching output stage is quite large. The power supplies are separated for analog and power parts. But the noise can still get through by substrate. I want to find out what is...
    Posted to Custom IC Design (Forum) by whlinfei on Wed, May 23 2012
  • Measuring 2-Tone Intermodulation Using Envelope-Following Analysis

    From time to time, SpectreRF users simulate very large, extracted-view circuits in 2+ tone QPSS. In many of those cases, memory requirements exceed the available resources. When that happens and small-signal approximations aren’t applicable, the user is typically stuck. The solution below and attached...
    Posted to RF Design (Weblog) by Tawna on Wed, May 16 2012
  • Things You Didn't Know About Virtuoso: Change is Here to Stay

    Speaking of variation -- and isn't everyone these days -- something strikes me in reading about all the powerful and elegant features of corners management and statistical analysis. After all the simulations are run and the results are presented, unless you've managed to hit a bullseye on the...
    Posted to Custom IC Design (Weblog) by stacyw on Thu, Apr 5 2012
  • Using runams instead of ocean

    Hello everyone, I'm trying to get started in the use of the "runams" command. My aim is to run several simulations from a PERL command but without invoking an ocean console. I found the help of the command and I tried to follow it. However when it finally runs I get the following error...
    Posted to Custom IC Design (Forum) by ptorru14 on Sat, Mar 24 2012
  • User Defined Simulator and corresponding Anlysis Option: ADE L

    In ADE I want to have a user defined simulator (say custRunSim) which can be seen in the pop down menu of simulators while cllick on Setup->simulator/Directory/host.... When user will choose the custRunSim simulator it will also change the analysis option (e.g. if simulator changes from spectre to...
    Posted to Custom IC SKILL (Forum) by TamalDas on Sat, Mar 3 2012
  • Things You Didn't Know About Virtuoso: We've Got You Cornered

    One of the big buzzwords around the EDA world these days is "variation." Don't you just love buzzwords? Take a perfectly normal, slightly ambiguous word, capitalize it, add a another slightly ambiguous hyphenated suffix, and suddenly you've just solved a new problem for your customers...
    Posted to Custom IC Design (Weblog) by stacyw on Thu, Jan 26 2012
  • Adding menu entries to ADE L window

    While migrating some SKILL code from Cadence 5 to Cadence 6 I'm encountering problems with adding menu entries. On Cadence 5, I was able to add a menu entry to the Analog Artist window by using it's name "analogArtist-schematic": deRegUserTriggers("analogArtist-schematic"...
    Posted to Custom IC SKILL (Forum) by ChrisEAS on Thu, Jan 19 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
  • how to add a param to a symbol? a macro symbol.

    the simulation model our fundary applied is in subcircuit ways. if i wanna simulate in ADE, I need to give a param named "mc", that is the multiplier of transistors. so i draw a symbol, and copy it to a HspiceD view, then i make a macro to simulate. at last i add a param named mc in CDF. rusults...
    Posted to Custom IC Design (Forum) by LiJin on Mon, Dec 5 2011
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