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一种基于零点优化的低功耗ΣΔ调制器
Title:ALowPowerΣΔModulatorBasedonZeroCrossingOptimization
Abstract:
Inrecentyears,lowpowerconsumptionhasbecomeamajorconcerninthedesignofanalog-to-digitalconverters(ADCs),particularlyforapplicationswithlimitedpowerbudgetsandstringentbatteryliferequirements.ThispaperpresentsanovellowpowerΣΔmodulatorbasedonzerocrossingoptimization.TheproposedmodulatorarchitecturecombinestheadvantagesofbothΣΔmodulatorsandzerocrossingtechniquestoachievesignificantpowersavingswithoutcompromisingperformance.Thedesignmethodology,simulationresults,andcomparativeanalysiswithexistingapproachesarepresentedtodemonstratetheeffectivenessoftheproposedmodulator.
1.Introduction
1.1Background
1.2Motivation
1.3Objectives
2.SignalModulationandΣΔModulation
2.1SignalModulation
2.2ΣΔModulationBasics
2.3AdvantagesandChallengesofΣΔModulators
3.ZeroCrossingOptimization
3.1ZeroCrossingTechniques
3.2ZeroCrossingModulatorArchitecture
3.3AdvantagesofZeroCrossingOptimization
4.PowerReductionTechniquesinΣΔModulators
4.1NoiseShapingTechniques
4.2QuantizationNoiseReduction
4.3PowerConsumptionAnalysis
5.ProposedLowPowerΣΔModulator
5.1ArchitectureOverview
5.2ZeroCrossingOptimizationTechniqueintheADCArchitecture
5.3PowerReductionAnalysis
6.SimulationResultsandPerformanceAnalysis
6.1SimulationSetup
6.2PerformanceMetrics
6.3ComparativeAnalysiswithExistingΣΔModulators
6.4PowerSavings
7.ImplementationConsiderations
7.1TechnologyProcessandDesignConstraints
7.2Trade-offsbetweenPowerConsumptionandPerformance
7.3CircuitImplementation
8.Conclusion
8.1SummaryofResults
8.2Contributions
8.3FutureWork
References
ThemainsectionsofthepaperwilldelveintothebackgroundofsignalmodulationandΣΔmodulation,describethezerocrossingoptimizationtechnique,discussvariouspowerreductiontechniquesinΣΔmodulators,andproposealowpowerΣΔmodulatorarchitecturebasedonthezerocrossingoptimizationtechnique.Thepaperalsoincludessimulationresultsandperformanceanalysistovalidatetheeffectivenessoftheproposedmodulator,inadditiontoimplementationconside