高速电路layout指南

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1、ApplicationReportSCAA082–November2006High-SpeedLayoutGuidelinesAlexanderWeilerandAlexanderPakosta............................................................................ClockDriversABSTRACTThisapplicationreportaddresseshigh-speedsignalssuchasclocksignalsandtheir r

2、outingandgivesdesignersareviewoftheimportantcoherences.Withsomesimple rules,electromagneticinterferenceproblemscanbeminimizedwithoutusing complicatedformulasandexpensivesimulationtools.Section1givesashort introductiontotheory;section2focusesonpracticalPCBdesignrules.E

3、ithersection canbereadindependently.Contents1TheoreticalOverview...............................................................................2 1.1ElectromagneticInterferenceandElectromagneticCompatibility...................2 1.2ClockSignals..........................

4、.....................................................2 1.3TransmissionLines........................................................................3 1.4Crosstalk....................................................................................8 1.5DifferentialSignal

5、s.........................................................................8 1.6ReturnCurrentandLoopAreas.........................................................8 2PracticalPCBDesignRules......................................................................9 2.1PCBCon

6、siderationsDuringtheCircuitDesign........................................9 2.2BoardStackup.............................................................................9 2.3PowerandGroundPlanes..............................................................10 2.4Decoupli

7、ngCapacitors..................................................................13 2.5Traces,Vias,andOtherPCBComponents..........................................14 2.6ClockDistribution.........................................................................17 3Summary..

8、.........................................................................................18 4References.....................