psspnoise仿真.docx
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1、仿真电路如下图所示:IMWL9ChSrl*Sele(PCoucL9chSingleSelcctPt()M:SchHiMousePopUpORgoScroll(niL3*nil)首先仿真瞬态,设置如下:VirtuosoAnalogDesignEnvironment(1)Status:ReadyIlIlm-T-27CSimulator:spectreSessionSetiAnalysesVariablesOutputsSimulationResultsToolsHelpDesignUbraryPLL20120S0SCellvcoViewSchenaticAn包yses#TypeArgUMent8.
2、EnableDesignVariables1detyes2tranO100ncons.yesOutputs*NameValue#Hane/SignaLZExprValuePlotSaveMarch1.738GHottingmode:ReplaceResultsin.eftroject)18PLLexample/sknulaUon/vco/spectre/schematic接着设置.psstjEChsingAnalyses-VirtuosoAnalogDesignEnvironmetgOKCancelDefaults ApplyCBiriodiqSteady Stateyalvi5AAccura
3、cyDefaults(erpreset)conservativemoderateliberal_AdditjonaITimeforStabilization(tstab)0,SaveInitialTransientResults(saveinit)noyesSweepOptions.EnafiledPnoiSe仿真设置如下:CyChOOSMgAnalyses-VirtuosoAnalogDesignEnvironmet暨OKCancelDefaultsApplyPeriodicNoiseAnalysisPSSBeatFrequency(Hz)L7380SweeptypedefaultJRela
4、tiveHamTOniCOutputFrequencySweepRange(Hz)Start-Stop10MHZ)WarningfronapectrcduringPNoisean&Lysio,pnoise,maxsidebands,inanaLyaispnoise,hasthemu8allysmallvalueof3.ThisparametercontrolstheanountofnoisefoldingConsideredzusingtooSna11avaluedegradesaccuracyUsingtheoperating-pointInfornationgeneratedbyPSSan
5、alysidpnoisefreq=158.5Hc(4*),step=326Hzpnoie.freq-2S1.2Hspnoise:freq三SOI.2Hzpnoisefreq=7943Hzpnoisefreq-1SSkHzpnoise:freq2.512kHzpnoisefreq=5012kHzpnoisefreq=7943kHzpnoisefreq-IS.8SkHzpnoisefreq=25.12kHzpnoisefreq=50.12kHzpnoaefreq-79.43kHz(%),stop-SI.66Hz(14%),step103.1Hz(18*),step三163.4Hz(24%),ste
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