IC datasheet pdf-TPA6132A2,pdf(DIRECTPATHTM STEREO HEADPHONE AMPLIFIER)

IC datasheet pdf-TPA6132A2,pdf(DIRECTPATHTM STEREO HEADPHONE AMPLIFIER)

IC datasheet pdf-TPA6132A2,pdf(DIRECTPATHTM STEREO HEADPHONE AMPLIFIER)

http://www.51wendang.comSLOS623A–FEBRUARY2009–REVISEDAPRIL2009

DIRECTPATH StereoHeadphoneAmplifier

WithDifferentialInputandHI-ZMode

FEATURES

PatentedDirectPath TechnologyEliminates

NeedforDC-BlockingCapacitors

–OutputsBiasedat0V

–ExcellentLowFrequencyFidelity

ActiveClickandPopSuppression

HI-ZOutputMode

2.1mATypicalSupplyCurrent

FullyDifferentialorSingle-EndedInputs

–Built-InResistorsReducesComponent

Count

–ImprovesSystemNoisePerformance

ConstantMaximumOutputPowerfrom2.3V

to5.5VSupply

–SimplifiesDesigntoPreventAcoustic

Shock

ImprovedRFNoiseImmunity

MicrosoftTMWindowsVistaTMCompliant

HighPowerSupplyNoiseRejection

–100dBPSRRat217Hz

–90dBPSRRat10kHz

WidePowerSupplyRange:2.3Vto5.5V

GainSettings:0dBand6dB

Short-CircuitandThermal-OverloadProtection

±8kVHBMESDProtectedOutputs

SmallPackageAvailable

–16-Pin,3mm×3mmThinQFNDESCRIPTIONTheTPA6135A2(sometimesreferredtoasTPA6135)isaDirectPath stereoheadphoneamplifierthateliminatestheneedforexternaldc-blockingoutputcapacitors.Differentialstereoinputsandbuilt-inresistorssetthedevicegain,furtherreducingexternalcomponentcount.Gainisselectableat0dBor6dB.Theamplifierdrives25mWinto16 speakersfromasingle2.3Vsupply.TheTPA6135A2(TPA6135)providesaconstantmaximumoutputpowerindependentofthesupplyvoltage,thusfacilitatingthedesignforpreventionofacousticshock.TheTPA6135A2(TPA6135)featuresHI-Zmodewhichcansettheoutputstoahighimpedanceconfiguration.Thefullydifferentialinputsreducesystemnoisepickupbetweentheaudiosourceandtheheadphoneamplifier.ThehighpowersupplynoiserejectionperformanceanddifferentialarchitectureprovideincreasedRFnoiseimmunity.Forsingle-endedinputsignals,connectINL+andINR+toground.Thedevicehasbuilt-inpopsuppressioncircuitrytocompletelyeliminatedisturbingpopnoiseduringturn-onandturn-off.Theamplifieroutputshaveshort-circuitandthermal-overloadprotectionalongwith±8kVHBMESDprotection,simplifyingendequipmentcompliancetotheIEC61000-4-2ESDstandard.TheTPA6135A2(TPA6135)operatesfromasingle2.3Vto5.5Vsupplywith2.1mAoftypicalsupply

current.Shutdownmodereducessupplycurrentto

lessthan1µA.

IC datasheet pdf-TPA6132A2,pdf(DIRECTPATHTM STEREO HEADPHONE AMPLIFIER)

IC datasheet pdf-TPA6132A2,pdf(DIRECTPATHTM STEREO HEADPHONE AMPLIFIER)

APPLICATIONS

IC datasheet pdf-TPA6132A2,pdf(DIRECTPATHTM STEREO HEADPHONE AMPLIFIER)

SmartPhones/CellularPhonesNotebookComputersCD/MP3PlayersPortableGamingPleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexas

Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

DirectPathisatrademarkofTexasInstruments.

WindowsVistaisatrademarkofMicrosoftCorporation.

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