标签: modulator

TMS320x2833x,2823xEnhancedPulseWidthModulator(ePWM)ReferenceGuide(Rev.A).pdf

DigitalPulseWidthModulatorArchitectures

ONSEMI_LA72912VFMModulatorandDemodulatorforVideoSignalsPlusASKCommunication.PDF

Avideocircuitcombinesanaudio-subcarriernotchfilter,group-delayequalization,andanamplitude-adjustmentcapabilityfordrivinganRFvideomodulatorinNTSCapplications.……

Abstract:Buildageneral-purposepulse-widthmodulatorusingthreeopampsfromaquad-op-ampdevice.Maxim/Dallas>AppNotes>AMPLIFIERANDCOMPARATORCIRCUITSAUTOMOTIVEKeywords:pulse-widthmodulation,PWM,pulsewidthmodulator,integrator,comparator,triangle-waveApr23,2004generatorAPPLICATIONNOTE3201Pulse-WidthModulatorOperatesatVariousLevelsofFrequencyandPowerBuildageneral-purposepulse-widthmodulatorusingthreeopampsfromaquad-op-ampdevice.Themanyapplicationsforpulse-widthmodulation(PWM)includevoltageregulation,power-levelcontrol,andfan-speedcontrol.APWMcircuitforsuchapplications(Figure1)canbeimplementedwiththreeopampsfromasinglequad-op-ampchip.Theuseofopampsallowsawidevarietyofapplications.Low-poweropampscanbeusedinalow-powersystem,forexample,andhigh-frequencyopampscanbe……

三个运算放大器的一般用途的脉冲宽度调制器。Maxim/Dallas>AppNotes>AMPLIFIERANDCOMPARATORCIRCUITSAUTOMOTIVEKeywords:pulse-widthmodulation,PWM,pulsewidthmodulator,integrator,comparator,triangle-waveApr23,2004generatorAPPLICATIONNOTE3201Pulse-WidthModulatorOperatesatVariousLevelsofFrequencyandPowerBuildageneral-purposepulse-widthmodulatorusingthreeopampsfromaquad-op-ampdevice.Themanyapplicationsforpulse-widthmodulation(PWM)includevoltageregulation,power-levelcontrol,andfan-speedcontrol.APWMcircuitforsuchapplications(Figure1)canbeimplementedwiththreeopampsfromasinglequad-op-ampchip.Theuseofopampsallowsawidevarietyofapplications.Low-poweropampscanbeusedinalow-powersystem,forexample,andhigh-frequencyopampscanbe……

建立一个通用的脉冲宽度调制器，从四运放器件使用三个运算放大器。Maxim/Dallas>AppNotes>AMPLIFIERANDCOMPARATORCIRCUITSAUTOMOTIVEKeywords:pulse-widthmodulation,PWM,pulsewidthmodulator,integrator,comparator,triangle-waveApr23,2004generatorAPPLICATIONNOTE3201Pulse-WidthModulatorOperatesatVariousLevelsofFrequencyandPowerBuildageneral-purposepulse-widthmodulatorusingthreeopampsfromaquad-op-ampdevice.Themanyapplicationsforpulse-widthmodulation(PWM)includevoltageregulation,power-levelcontrol,andfan-speedcontrol.APWMcircuitforsuchapplications(Figure1)canbeimplementedwiththreeopampsfromasinglequad-op-ampchip.Theuseofopampsallowsawidevarietyofapplications.Low-poweropampscanbeusedinalow-powersystem,forexample,andhigh-frequencyopampscanbe……

摘要：DS1050是一个5位的脉冲宽度调制（PWM）由2线总线控制。这允许一个主设备，一个单一的2线总线控制多达8奴隶（DS1050和其他2线设备）。本应用笔记中，演示了通过PC机的串行接口2线总线接口。硬件和软件的要求，并给出从DallasSemiconductor的FTP站点下载。Maxim>AppNotes>DigitalPotentiometersDisplayDriversPower-SupplyCircuitsKeywords:fancontrol,fanspeed,brightnesscontrol,contrastcontrol,2wirebus,2wiredevices,PWM,pulseDec17,2001widthmodulator,dcmotor,LCDLEDbacklightAPPLICATIONNOTE163UsingDS1050ProgrammablePWMstoControlaDCMotorandanLCDLEDBacklightAbstract:TheDS1050isa5-bitpulse-widthmodulator(PWM)controlledbya2-wirebus.Thisallowsasinglemasterdevicetocontrolupto8slave(DS1050andother2-wiredevices)onasingle2-wirebus.Inthisapplicationnote,aninterfacetoa2-wirebusviaaPCserialinterfaceisdemonstrated.ThehardwareandsoftwarerequirementsaregivenandavailablefordownloadfromtheDallasSemiconductorFTPsite.IntroductionTheD……

摘要：DS1050是由2线总线控制5位脉冲宽度调制器(PWM)。这允许单个主机设备来控制达8奴隶（DS1050和其他2线设备）单2线公共汽车上。在此应用程序的说明，这表明2线公共汽车通过PC串行接口的接口。给定和从达拉斯半导体FTP站点下载可用的硬件和软件要求。Maxim>AppNotes>DigitalPotentiometersDisplayDriversPower-SupplyCircuitsKeywords:fancontrol,fanspeed,brightnesscontrol,contrastcontrol,2wirebus,2wiredevices,PWM,pulseDec17,2001widthmodulator,dcmotor,LCDLEDbacklightAPPLICATIONNOTE163UsingDS1050ProgrammablePWMstoControlaDCMotorandanLCDLEDBacklightAbstract:TheDS1050isa5-bitpulse-widthmodulator(PWM)controlledbya2-wirebus.Thisallowsasinglemasterdevicetocontrolupto8slave(DS1050andother2-wiredevices)onasingle2-wirebus.Inthisapplicationnote,aninterfacetoa2-wirebusviaaPCserialinterfaceisdemonstrated.ThehardwareandsoftwarerequirementsaregivenandavailablefordownloadfromtheDallasSemiconductorFTPsite.IntroductionTheD……

(RF調變器_Modulator)音視訊調節電路_BTRF……

Sigma-DeltaModulatorSigmaDeltaModulatorAlfredBlaisJeremyFerrisChapter1:ProjectOverviewAsigmadeltamodulatorisonemethodforprovidingthefrontendtoananalogtodigitalconverter.Whenananalogsignalisdigitized,quantizationerrorisintroducedintothefrequencyspectrum.Thesigmadelta’sfunctionistopushthequantizationerrorthatisnearthesignalintoahigherfrequencybandnearthesamplingfrequency.Afterthisisdonethesignalcanbelowpassfilteredandtheoriginalsignalcanberestoredinadigitizedform.Thisprojectconsistsofasigmadeltamodulatorwithfirstordernoiseshapingcharacteristics.TheblockdiagramofthefirstorderloopisshowninFigure1,AppendixD.Inthesigmadeltamodulator,thedifferencebetweentheanaloginputsignalandatheoutput……