安捷伦ADS信号完整性讲座(英文)

3DEM,SimulationandMeasurementAdvancesfor2006ExpandsSIHorizonsPage1“ExpandsSIHorizon”SignalIntegritySimulationsUsingAdvancedDesignSystem3DEM,SimulationandMeasurementAdvancesfor2006ExpandsSIHorizonsPage2YEARTECHNOLOGYYIELDOPTIMIZATIONPARAMETERIZEDEMMODELSDISCRETEVALUEOPTIMIZATIONTRANSIENTCONVOLUTIONSIMULATIONDESIGNOFEXPERIMENTYIELDNALYSIS2.5DEMADAPTIVEPOLYGONALMESHINGHIGH-FREQUENCYSPICEFULL-WAVE2DEMANALYSISPC-BASEDLINEARSIMULATORLAYOUTDRIVENSIMULATION25YearsofTechnologicalInnovationOPTIMIZATIONFROMLAYOUTDSP/ANALOGCO-SIMULATIONFAST2.5DEMSIMULATORSMARTSIMULATIONWIZARDELECTRONICLABNOTEBOOKFULL-WAVE3DEMANALYSISPHYSICALCONNECTIVITYENGINEAUTOMATEDFINITEMETALTHICKNESSLINUXSUPPORTWecombineproventechnologywithnewinnovations,aflexible,open,andprovenarchitecture.MULTI-LAYERINTERCONNECTMODELS3DEM,SimulationandMeasurementAdvancesfor2006ExpandsSIHorizonsPage3TypicalSIProblem(EnsuringSignalQualityandTiming)PatternGeneratorPre-emphasis/DriverEncoderDecoderReceiverEqualizerPhysicalChannelBoardTraces2”(51mm)–10”(254mm)CardCardPackageDiePackageDieDriverReceiverCardHighspeedConnectorsBackplaneTraces10”(254mm)–40”(1016mm)PhysicalChannelChannelAdaptationSignalRecoveryIBISorSpicemodelIBISorSpicemodel3DEM,SimulationandMeasurementAdvancesfor2006ExpandsSIHorizonsPage4SerialLinkDesign-SimulationChallenges•WhyS-parameterareimportantathighdatarate?•MajorityoftheSPICEsimulatorhaveproblemdealingwithS-parametermodels•MajorityofSPICEsimulatorscannotpredictaccuratetimedomainresponsefromS-parameterinterconnectmodels•BBSPICEhaveproblemsdealingwithnoisyS-parameterdata•SERDEScouldnotbemodeled•OtherDSPtoolsalonearenotsufficienttomodelRFChannel•IntegratedEMsimulatoraremustforasuccessfuldesign3DEM,SimulationandMeasurementAdvancesfor2006ExpandsSIHorizonsPage5DriverBoardPackageBackplaneADSsupportsallimplementationdomains(IC,Module,Board)ADScananalyzethefulldigitalchannel–dataintodataoutIntegrateddatamodelsandsimulationtechnologyHighSpeedDigitalChannelDesignExpandsSIHorizon-SimulateCompleteChannelBoardEncoder,SerializerDecoder,De-serializerPackageReceiver3DEM,SimulationandMeasurementAdvancesfor2006ExpandsSIHorizonsPage6CombiningSimulationTechnologiesforaSuccessfulDesignFrequencyDomainTimeDomainNumericDomainElectromagneticDomain•S-Parameter•AC-Simulation•HarmonicBalanceHDL•Convolution•HighFrequencySPICE•CircuitEnvelope•Verilog-A•Matlab•HDL,C++,System-C•AgilentPtolemy•MethodofMoment•FiniteElementAnalysis•FiniteDifferenceTimeDomain3DEM,SimulationandMeasurementAdvancesfor2006ExpandsSIHorizonsPage7AnalogComponentsofaChannelTransmissionLinesViaHolesHighSpeedConnectorsPackageI/O–IBISmodelsandTransistorlevelmodelsBehaviorComponentsinaChannelDecisionFeedbackEqualizerFeedForwardEqualizerClockandDataRecoveryGainControlsSERDESModels3DEM,SimulationandMeasurementAdvancesfor2006ExpandsSIHorizonsPage8ADS-SignalIntegritySimulationADSDSPSimulator(AgilentPtolemy)ADSAnalogSimulators(Time,FrequencyandEnvelope)ADSEMSimulators(MOM,FEM,FDTD)FIR,DFE,MATLAB,System-C,C++,HDL,…InterconnectModels,DriverModelsPhysicalModels3DEM,SimulationandMeasurementAdvancesfor2006ExpandsSIHorizonsPage9HowdesignersareusingADS?5101520250300.00.20.40.60.81.0-0.21.2time,nsecVoutv,V3DEM,SimulationandMeasurementAdvancesfor2006ExpandsSIHorizonsPage10StatisticalEyeSimulationinADS(CustomerFlow)AnalogChannelEyeafterEqualizerTransmitterEyeEyeafterJitterModulationEyeafterEmphasisEyeafterChannel3DEM,SimulationandMeasurementAdvancesfor2006ExpandsSIHorizonsPage11EnhancedSimulationCapabilityFasterTransientSimulationAdvancedConvolutionIBISI/OModelsBroadbandSPICEModelGeneratorImprovedDesignFlowIntegrationSuperiorViaModelingCapability3DEM,SimulationandMeasurementAdvancesfor2006ExpandsSIHorizonsPage12FasterTransientSimulationInADS2006A,High-FrequencySPICEis10%to40%faster.Update1addsanother10%improvementdueto:–Algorithmicimprovements–Deviceoptimization–CodeoptimizationTransientSpeed-up0.500.600.700.800.901.001.101.201.301.401.500102030405060Speed-upCircuit#3DEM,SimulationandMeasurementAdvancesfor2006ExpandsSIHorizonsPage13ConvolutionTechnologyAdvancesNewengineforrobusthandlingofS-parameterdatainthetime-domain,employing:•Breakthroughtechnologyaccuratelyfindsthecausaltime-domainresponsefromtheoriginalS-ParametersLowimpedancepower/groundplane(mOhms)intoa50OhmreferenceimpedanceResult:CorrectTime-domainresponse•Optionalpassivitydetectionandcorrection–preventsTeravoltoutputsthatcouldsolvetheworld’senergyproblemsJNewUpdate1EngineReferenceResults2006AEngineReferenceResultsTypicalSPICEsimulatorsdon’tdothisverywell:high-speeddigitalboarddesignersneedthis!3DEM,SimulationandMeasurementAdvancesfor2006ExpandsSIHorizonsPage14IBISDeviceFunctionality–I/OBuffer•Combinestheinputbufferandthetri-stateoutputbuffer•BehavesasaninputbufferifEnable=offorasanoutputbufferifEnable=on•ThenewDigOnodewasnotavailableinthepreviousDesignGuide-basedIBISsolution•NewIBISI/Omodelsprovidedynamictriggercapability3DEM,SimulationandMeasurementAdvancesfor2006ExpandsSIHorizonsPage15IBISDeviceFunctionality–DriverSchedule•Newcapabilitysupportsdriverschedule•C