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1、MeasurementTechniquesforDigitalAudiobyJulianDunnCopyright2001–2004AudioPrecision,Inc.Copyright©2001–2003JulianDunnAllrightsreserved8211.0143Revision1Nopartofthismanualmaybereproducedortransmittedinanyformorbyanymeans,electronicormechanical,includingphotocopy
2、ing,recording,orbyanyinformationstorageandretrievalsystem,withoutpermissioninwritingfromthepublisher.AudioPrecision®,SystemOne®,SystemTwo™,SystemTwoCascade™,SystemOne+DSP™,SystemTwo+DSP™,DualDomain®,FASTTEST®,andAPWIN™aretrademarksofAudioPrecision,Inc.Windows
3、isatrademarkofMicrosoftCorporation.Publishedby:AudioPrecision,Inc.5750SWArcticDriveBeaverton,Oregon97005U.S.TollFree:1-800-231-7350Tel:(503)627-0832Fax:(503)641-8906email:info@audioprecision.comweb:audioprecision.comPrintedintheUnitedStatesofAmericaIV02160843
4、17ContentsIntroduction..............................1JitterTheoryIntroduction...................................3WhatIsJitter?................................4MeasuringJitter...............................4TheUnitInterval...............................5HowCan
5、YouSeeJitter?..........................5JitterinSamplingProcesses.........................7JitterintheInterface:DataRecovery....................7JitterinClockRecoveryforSynchronization.................8DigitalInterfaceJitter..............................8Intr
6、insicJitter.................................8Cable-InducedJitter............................10DataJitter..................................11PreambleJitter...............................11Interfering-Noise-InducedJitter.......................13JitterTolerance.
7、..............................14TheJitterTransferFunctionandJitterGain................15Non-LinearJitterBehavior.........................16JitterAccumulation.............................16SamplingJitter................................18SamplingJitterandtheExt
8、ernalClock...................19Time-DomainModel............................20Frequency-DomainModel.........................21InfluenceofADC/DACArchitecture....................23Applicatio