Transcription of AN-1469PHYTER Design & Layout Guide - TI.com
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ApplicationReportSNLA079D October2006 RevisedApril2013AN-1469 PHYTERD esign& (TP/CAT-V) (MII/RMII).. a October2006 RevisedApril2013AN-1469 PHYTERD esign& LayoutGuideSubmitDocumentationFeedbackCo pyright 2006 2013, LayoutGuideSNLA079D October2006 RevisedApril2013 SubmitDocumentationFeedbackCopyright 2006 2013, ,fullfeatured,lowpower,10 ,forboth10 BASE-Tand100 BASE-TXEthernetprotocols,thedevicesensur ecompatibilityandinter-operabilitywithot herstandardsbasedEthernetproductsin theseapplications: HighEndPeripheralDevices IndustrialControls FactoryAutomation GeneralEmbeddedApplicationsUseofthisappl icationreport,in conjunctionwiththeproductdatasheets,andr eferencedesigns, : MDI(TwistedPair/CAT-V)Connections PowerSupplyDecoupling MACI nterface ClockConnections LEDC onnections Configuration(Strap)Connections Unused/ReservedPins PCBL ayers(stack-up) ComponentSelection/RecommendationsProduc tApplicability.
MDI (TP/CAT-V)Connections www.ti.com 2.2 Calculating Impedance The following equations can be used to calculate the differential impedance of the board. For microstrip traces, a solid ground plane is needed under the signal traces.
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