标签: desige

NvidiaMCP55PDesigeguideDesignGuideMCP55P/MCP55S/MCP55UltraMediaandCommunicationsProcessorNVIDIACONFIDENTIALPreparedandProvidedUnderNDADG-02124-001_v08April2006PROPRIETARYINFORMATIONDocumentChangeHistoryVersion01020304Date10/20/0511/07/0511/15/0511/17/05ResponsibleKD,DVKD,GM,DVXL,DVRM,DVReasonforChangeInitialdocumentTheMCP55VparthasbeenreplacewiththeMCP55UltrapartChangedUSB_RBIAS_GNDtoGNDresistorvaluefrom732ohmsto931ohmsChangedmatchlengthdescriptiononXTALIN/XTALOUTon25MHzandXTALIN_RTC/XTALOUT_RTC(Table25,MiscellaneousSignals,page64).ChangedtheLPC_CLK[0:1]seriesterminationfrom22to33ohmChangedthecurrentrequirementfor+1.2Vdualand+1.2VHTregulators.AddedComponentPlacesectionwithPCIEkeepoutreq……