AllegroPCB数字信号完整性

AllegroPCB数字信号完整性

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时间:2019-06-14

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1、UsingAllegroPCBSItoAnalyzeaBoard’sPowerDeliverySystemfromPowerSourcetoDiePadInternationalCadenceUsergroupConferenceSeptember15–17,2003JuergenFlamm,Cadence1CADENCEDESIGNSYSTEMS,INC.AbouttheAuthorJuergenFlammSeniorTechnicalSalesLeaderCadenceDesignSystemsJuergenholdsaMSEEdegreefromthe“Univ

2、ersityFridericiana”inKarlsruhe(Germany)Throughouthiscareer,hehasbeenactivelyinvolvedatalllevelsandinallaspectsofelectronicdesign.HestarteddesigningwidebandtelephonylineamplifiersandrepeatersatAEGTelefunken.NexthejoinedLitef(LittonGermany)astheleadengineerforsensorelectronicdevelopment.H

3、edesignedmixedmodeanalog/digitalASICs,miniaturizedhybridelectronicsandnextlevelmulti-boardsysteminaboxelectronics.HerelocatedtotheUnitedStatesin1990tojoinLittoncorporateastheleaderofaninternationaltechnologytransferteam.Shortlyafter,hewaspromotedtomanageroftheAnalogDesignGrouptomoveonto

4、manageroftheElectronicEngineeringDepartment.Withthebeginningof2001,aplannedcareerrchangebroughtJuergentoCadence.HejoinedPSDasaSeniorTechnicalSalesLeaderwithfocusontheAllegroPCBSIfamilyoftools.Heholds5patentsintheareasofperformanceelectronicsforfiberopticandMEMSsensors.2AgendaIntroductio

5、nDescribingtheproblemDevelopingaSolutionStep1:PowerdeliverysystemanalysisforaboardusingAllegroPCBPIStep2:Powerdeliverysystemanalysisforaboard/packagecombinationusingAllegroPCBSISSNStep3:CombiningStep1andStep2andmoreSummaryQ&A3IntroductionToday’shighspeedcircuits,operatingatfastedgerates

6、(<1nsec)and/orhighfrequencies(>100MHz),combinedwithdecreasingsupplyvoltageandincreasingsupplycurrentdemands,havebeenplacinggrowingchallengesonthedesignofpowerdeliverysystems.ThispresentationwillshowhowAllegroPCBSIcanbeutilizedtoperformpost-layoutanalysisofthepowerdeliverysystemofacomple

7、tedboarddesign(seeICU2003paper#2fordetails).Post-layoutanalysisisonlyoneusemodelofAllegroPCBSI.Thetool’srealpowerwillbeexperiencedwhenalsoproactivelyemployedforpre-layoutdesignandanalysisaswellasforfloorplanningofapowerdeliverysystem.However,theseusemodelsarenotsubjectofthispre

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