面向光通信应用的CMOS 28 Gbps低功耗高抖动容限CDR电路设计-豆柴文库

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面向光通信应用的CMOS28Gbps低功耗高抖动容限CDR电路设计
Title:DesignofLowPower,HighJitterTolerantCDRCircuitfor28GbpsCMOSOpticalCommunicationApplications
Abstract:
Inrecentyears,therehasbeenagrowingdemandforhigh-speedandlow-poweropticalcommunicationsystems.Clockdatarecovery(CDR)circuitsplayacrucialroleinthesesystemsbyenablingpropersynchronizationanddataextraction.Thispaperpresentsthedesignofalow-power,highjitter-tolerantCDRcircuitfor28GbpsCMOSopticalcommunicationapplications.TheproposedCDRcircuitisoptimizedforpowerefficiency,whilemaintaininghighperformanceandrobustness.
1.Introduction
Opticalcommunicationsystemshavebecomeprevalentduetotheirhighdatatransmissionratesandlowpowerconsumption.ContinuousadvancementsinCMOStechnologyhavemadeitpossibletointegratecomplexcircuitsforopticalcommunicationsystemsonasinglechip.TheCDRcircuit,responsibleforextractingandsynchronizingclocksignalsfromincomingdata,isanessentialcomponentinsuchsystems.ThispaperfocusesonthedesignofaCDRcircuitsuitableforhigh-speedopticalcommunicationapplications.
2.LiteratureReview
PreviousresearchhasexploredvarioustechniquesforCDRcircuitdesign,suchasphase-lockedloops(PLLs),delaylockedloops(DLLs),andhybridsolutions.OnekeychallengeinCDRcircuitdesignisachievinghighjittertolerancewhileminimizingpowerconsumption.SeveralexistingCDRcircuitshaveachievedhighperformance,butoftenattheexpenseofpowerefficiency.Thismotivatestheneedforalow-powerCDRcircuitwithhightolerancetoinputjitter.
3.ProposedCDRCircuitDesign
TheproposedCDRcircuitutilizesacombinationofphaseinterpolation,clockmultiplication,anddatasamplingtechniquestoachievehigh-performanceclockrecovery.Thephaseinterpolationtechniqueallowsaccurateestimationoftheoptimalphaseshift,whileclockmultiplicationenablespreciseclockgeneration.Thedatasamplingtechniqueensurestheaccurateextractionofdatawithminimaldistortion.
4.LowPowerOptimizationTechniques
Toachievelowpowerconsumption,anumberofoptimizationtechniquesareimplemented.Theseincludetheutilizationoflow-powerCMOSdesignmethodologies,suchaspowergatin