TLV320AIC3104中文资料

  FEATURESAPPLICATIONSDESCRIPTIONTLV320AIC3104SLAS510A–FEBRUARY2007–REVISEDJULY2007LOW-POWERSTEREOAUDIOCODECFORPORTABLEAUDIO/TELEPHONY•DigitalCameras•StereoAudioDAC•SmartCellularPhones–102-dBASignal-to-NoiseRatio•PDAs–16/20/24/32-BitData•PortableComputing–SupportsSampleRatesFrom8kHzto96•CommunicationkHz•EntertainmentApplications–3D/Bass/Treble/EQ/De-EmphasisEffects–FlexiblePowerSavingModesandPerformanceareAvailableTheTLV320AIC3104isalow-powerstereoaudio•StereoAudioADCcodecwithstereoheadphoneamplifier,aswellas–92-dBASignal-to-NoiseRatiomultipleinputsandoutputsthatareprogrammablein–SupportsSampleRatesFrom8kHzto96single-endedorfullydifferentialconfigurations.Extensiveregister-basedpowercontrolisincluded,kHzenablingstereo48-kHzDACplaybackaslowas14–DigitalSignalProcessingandNoisemWfroma3.3-Vanalogsupply,makingitidealforFilteringAvailableDuringRecordportablebattery-poweredaudioandtelephony•SixAudioInputPinsapplications.–OneStereoPairofSingle-EndedInputsTherecordpathoftheTLV320AIC3104contains–OneStereoPairofFullyDifferentialInputsintegratedmicrophonebias,digitallycontrolledstereomicrophonepreamplifier,andautomaticgaincontrol•SixAudioOutputDrivers(AGC),withmix/muxcapabilityamongthemultiple–StereoFullyDifferentialorSingle-Endedanaloginputs.ProgrammablefiltersareavailableHeadphoneDriversduringrecordwhichcanremoveaudiblenoisethat–FullyDifferentialStereoLineOutputscanoccurduringopticalzoomingindigitalcameras.Theplaybackpathincludesmix/muxcapabilityfrom•LowPower:14-mWStereo48-kHzPlaybackthestereoDACandselectedinputs,throughWith3.3-VAnalogSupplyprogrammablevolumecontrols,tothevarious•Ultralow-PowerModewithPassiveAnalogoutputs.BypassTheTLV320AIC3104containsfourhigh-power•ProgrammableInput/OutputAnalogGainsoutputdriversaswellastwofullydifferentialoutput•AutomaticGainControl(AGC)forRecorddrivers.Thehigh-poweroutputdriversarecapableof•ProgrammableMicrophoneBiasLeveldrivingavarietyofloadconfigurations,includinguptofourchannelsofsingle-ended16-Ωheadphones•ProgrammablePLLforFlexibleClockusingac-couplingcapacitors,orstereo16-ΩGenerationheadphonesinacaplessoutputconfiguration.•I2CControlBusAA•AudioSerialDataBusSupportsI2S,ALeft/Right-Justified,DSP,andTDMModesA•ExtensiveModularPowerControlA•PowerSupplies:AA–Analog:2.7V–3.6V.A–DigitalCore:1.525V–1.95VA–DigitalI/O:1.1V–3.6VA•Package:5-mm×5-mm32-PinQFNPleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.PRODUCTIONDATAinformationiscurrentasofpublicationdate.Copyright©2007,TexasInstrumentsIncorporatedProductsconformtospecificationsperthetermsoftheTexasInstrumentsstandardwarranty.Productionprocessingdoesnotnecessarilyincludetestingofallparameters.(CONTINUED)TLV320AIC3104SLAS510A–FEBRUARY2007–REVISEDJULY2007Thesedeviceshavelimitedbuilt-inESDprotection.TheleadsshouldbeshortedtogetherorthedeviceplacedinconductivefoamduringstorageorhandlingtopreventelectrostaticdamagetotheMOSgates.ThestereoaudioDACsupportssamplingratesfrom8kHzto96kHzandincludesprogrammabledigitalfilteringintheDACpathfor3D,bass,treble,midrangeeffects,speakerequalization,andde-emphasisfor32-kHz,44.1-kHz,and48-kHzsamplerates.ThestereoaudioADCsupportssamplingratesfrom8kHzto96kHzandisprecededbyprogrammablegainamplifiersorAGCthatcanprovideupto59.5-dBanaloggainforlow-levelmicrophoneinputs.TheTLV320AIC3104providesanextremelyhighrangeofprogrammabilityforbothattack(8–1,408ms)andfordecay(0.05–22.4seconds).ThisextendedAGCrangeallowstheAGCtobetunedformanytypesofapplications.Forbatterysavingapplicationswhereneitheranalognordigitalsignalprocessingarerequired,thedevicecanbeputinaspecialanalogsignalpassthroughmode.Thismodesignificantlyreducespowerconsumption,asmostofthedeviceispowereddownduringthispassthroughoperation.TheserialcontrolbussupportstheI2Cprotocol,whereastheserialaudiodatabusisprogrammableforI2S,left/right-justified,DSP,orTDMmodes.AhighlyprogrammablePLLisincludedforflexibleclockgenerationandsupportforallstandardaudioratesfromawiderangeofavailableMCLKs,varyingfrom512kHzto50MHz,withspecialattentionpaidtothemost-popularcasesof12-MHz,13-MHz,16-MHz,19.2-MHz,and19.68-MHzsystemclocks.TheTLV320AIC3104operatesfromananalogsupplyof2.7V–3.6V,adigitalcoresupplyof1.525V–1.95V,andadigitalI/Osupplyof1.1V–3.6V.Thedeviceisavailableina5-mm×5-mm32-pinQFNpackage.2SubmitDocumentationFeedback