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时间: 2020-1-10 12:24
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阻抗控制和设计ControlledImpedanceDesignandTestIntelCorporationIntel’sLabsAgendazStatementofObjectivezBackgroundzACTimingandSignalQualityzImpedanceFundamentalszDesignGuidelineszTestingBoardImpedance(TDR)zSummaryandConclusionsIntel’sLabsObjectiveTheobjectiveofthispresentationistoprovideinformationtoassistOEMsandPCBvendorstodesignandtestmotherboardswhichwillmeeta28(+/-10%)impedancespecificationIntel’sLabsBackgroundzExistingmotherboardsaredesignedaround65+/-15%zThenew28+/-10%specificationisrequiredbythememorychannelzExceedingthespecificationresultsinadditionalchanneltimingerrorandreducedsignalmarginzBotheffectsmaycausefailuresonthememorychannelIntel’sLabsSignalQualityandTi……