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1、基于protel99的pcb信号完整性分析（PCBSignalIntegrityAnalysisBasedonProtel99）Thispaperiscontributedbyliuquanfu71DOCdocumentsmayexperiencepoorbrowsingontheWAPside.ItisrecommendedthatyouselectTXTfirstordownloadthesourcefiletothelocalmachine.Abstract:thesignalintegrityan
2、alysisanddesignrulesandcompleteanalysisofthethreeaspects,suchassimulatorwaveformanalyzerillustrateshowtousethedesignofsignalintegrityofProtel99forprintedcircuitboardfunctionanalysis.Keywords:signalintegrity;electromagneticinterference;waveformanalyzerkeyw
3、ordsintroductionwithvariouslargescale,highdensityoftheemergingnewelectroniccomponents,electroniccircuitdesignmoreandmorecomplicatedandprecise.BasedonthisurgentneedCADcircuitdesigntechnologyalsomakefulluseofthecomputerrevolution,whichmakesthedesignmeansoft
4、hechangeinturntheworldupsidedown,Protel99electronicdesignsoftwareisapowerfulandfriendlyinterface,simpleoperation,fastandefficientcircuitdesignsoftwareCAD.Inordertoensurethatthedesignedcircuitcanworkreliably,theneedforaccuratetimingcircuitanalysis,waveform
5、analysis,signalintegrityanalysis,electromagneticnoiseanalysis,toavoidtheblindnessofdesign,reducethedesigncost.ThisarticlefocusesonhowtouseProtel99softwaretodesignthePCBpresignalanalysis,sothatthedesignofthecircuitismorefeasible.Theconceptofelectromagnetic
6、interferenceelectromagneticinterferencesignalintegrityreferstotheelectronicproductstosendoutthenoisecausedbyelectromagneticchangephenomenonreductionapparatus,deviceorsystemperformance,mainlydividedintotwokindsofconductedinterferenceandradiatedinterference
7、.Electromagneticinterferencereferstoconductionthroughtheconductivemediumintoanelectricalsignalfromthenetworkcoupling(interference)toanotherelectricnetwork;radiationinterferencereferstotheinterferencesource(electromagnetic)totheirsignalsthroughspacecouplin
8、g(interference)toanotherelectricnetwork.InthePCBdesign,needtoconsiderthemainradiationinterference,becausethecharacteristicsofintegratedcircuitpin,varioustypesofconnectorshaveantennas,canemitelectromagneticwavesandaf
