标签: amplifer

Abstract:ThisapplicationnoteexaminestheeffectoftheoutputfilteronaudioClassDamplifierperformance.Switch-modeamplifierssuchastheMAX4295andMAX4297offerimprovedefficiencyovertheirmoretraditionalClassABcounterparts.Byunderstandingtheoperationofthesedevices,themodulationnoisespectrumandtheloudspeakerloadstheyarerequiredtodrive,itispossibletocompletelyeliminatetheoutputfilterwhileretainingtheefficiencybenefitsofClassDamplifiers.Maxim>AppNotes>AMPLIFIERANDCOMPARATORCIRCUITSAUDIOCIRCUITSKeywords:ClassD,audioamplifiers,switchingamplifer,outputfilter,modulationnoise,PWM,filterless,Apr01,2002amplifersAPPLICATIONNOTE624ClassDAudioAmplifierOutputFilterOptimizationAbstract:ThisapplicationnoteexaminestheeffectoftheoutputfilteronaudioClassDamplifierperformance.Switch-modeamplifierssuchastheMAX4295andMAX4297offerimprovedefficiencyovertheirmoretraditionalClassABcounterparts.Byunderstandingtheoperationofthesedevices,themodulationnoisespectrumandtheloudspeakerloadstheyarerequiredtodrive,itispossibletocompletelyeliminatetheoutputfilterwhileretainingtheefficiencybenefitsofClassDamplifiers.Thisarticl……

摘要：本应用笔记探讨输出滤波器的D类音频放大器的性能的影响。如MAX4295和MAX4297对他们更传统的AB类同行提供提高效率开关模式放大器。通过了解这些设备，调制噪声频谱和他们需要推动扬声器负载的运作，这是可以完全消除输出过滤器，同时保留了D类放大器的效率方面的好处。Maxim>AppNotes>AMPLIFIERANDCOMPARATORCIRCUITSAUDIOCIRCUITSKeywords:ClassD,audioamplifiers,switchingamplifer,outputfilter,modulationnoise,PWM,filterless,Apr01,2002amplifersAPPLICATIONNOTE624ClassDAudioAmplifierOutputFilterOptimizationAbstract:ThisapplicationnoteexaminestheeffectoftheoutputfilteronaudioClassDamplifierperformance.Switch-modeamplifierssuchastheMAX4295andMAX4297offerimprovedefficiencyovertheirmoretraditionalClassABcounterparts.Byunderstandingtheoperationofthesedevices,themodulationnoisespectrumandtheloudspeakerloadstheyarerequiredtodrive,itispossibletocompletelyeliminatetheoutputfilterwhileretainingtheefficiencybenefitsofClassDamplifiers.Thisarticl……

HighSpeedAmpliferPCBLayoutTipsApplicationBriefSLOA102-September2002High-SpeedAmplifierPCBLayoutTipsBruceCarterABSTRACTHigh-speedopampcircuitdesignrequiresspecialattention.ThisapplicationbriefpresentssometipsforPCBlayout.HPLThelayoutofaTexasInstrumentsEVM,designedforusewithhigh-speedsignals,canbeusedasanexamplewhendesigningPCBsincorporatinghigh-speedopamps.Carefulattentionhasbeengiventocomponentselection,grounding,powersupplybypassing,andsignalpathlayout.Disregardingthesebasicdesignconsiderationscouldresultinlessthanoptimumperformanceofahigh-speedoperationalamplifier.Surface-mountcomponents,selectedbecauseoftheextremelylowleadinductanceassociatedwiththistechnology,helpminimizebothstrayinductanceandcapacitance……

TestingCDMABaseStationAmpliferAgilentAN1307TestingCDMABaseStationAmplifiersApplicationNoteMeasurementfundamentalsofcharacterizingthelinearandnon-linearbehaviorofCDMApoweramplifiersTableofContents4556788891013141516161718181920212223242525262628292930323435Introduction1.Overview1.1Amplifiermeasurements1.2Poweramplifiercharacteristics1.3CommonCDMAbasestationamplifierrequirements2.TestSystemRequirements2.1Stimulusresponsemeasurements2.2Networkanalyzerrequirements2.3High-powerconsiderations2.4Typicaltestsetups2.5Digitalsignalgeneratorrequirements2.6Signalanalyzerrequirements2.7Powermeterrequirements3.MeasurementsandTestInstruments3.1PulsedRFandpulsedbias3.2Load-pullanalysis3.3Networkanalysis3.3.……