标签: 环环
相关资源
-
锁相环环路带宽的测量AppliedRadioLabswww.radiolab.com.auMeasuringtheLoopBandwidthofaPLLDesignFile:DN00315October1999IntroductionManymoderncommunicationsystemsutilisePLLfrequencysynthesizers.ThePLLisafeedbackloop,andthefrequencydomaincharacteristicsofthelooptransferfunction(gainandphaseresponse)havesignificanteffectonthePLLoperation,forexample:§§§Lockingtimes(e.g.overshootandringingforpoorphasemargin)Phasenoise‘ears’ifphasemarginispoorFrequencyresponseofmodulation/demodulationLink1VCOFoutMainDivider1/NKv/sF(s)PhaseDetectorKd1/MReferenceDividerFrefLoopFilterFigure1-PLLSynthesizerMeasuringtheLoopBandwidthForthePLLinFigure1,weinsertalow-passfilterinplaceofLink1.Asuitablefilterist……
-
ANSOFT2005用户优秀论文集扫描版之－－用ANSOFT...,利用ANSOFTDESIGNER实现锁相环环路的优化设计……
