AC108_Datasheet_V1.1

AC108Datasheet4ChannelHighPerformanceVoiceCaptureADCswithI2C/I2SRevision1.1July,30,2017Copyright©2017X-PowersLimited.AllRightsReserved4ChannelVoiceCaptureADCsAC108Revision1.0Copyright©2017X-PowersLimited.AllRightsReserved.2REVISIONHISTORYRevisionDataAuthorDescriptionV0.1May,05,2016InitialVersionV0.8Mar,27,2017CompleteVersion0.8V0.9July,14,2017CompleteVersion0.9V1.0July,28,2017Version1.0V1.1July,30,2017ChangePowerconsumptiondata4ChannelVoiceCaptureADCsAC108Revision1.0Copyright©2017X-PowersLimited.AllRightsReserved.3DECLARATIONX-POWERSCANNOTASSUMERESPONSIBILITYFORUSEOFANYCIRCUITRYOTHERTHANCIRCUITRYENTIRELYEMBODIEDINANX-POWERSPRODUCT.NOCIRCUITPATENTLICENSES,COPYRIGHTS,OROTHERINTELLECTUALPROPERTYRIGHTSAREIMPLIED.X-POWERSRESERVESTHERIGHTTOMAKECHANGESTOTHESPECIFICATIONSANDPRODUCTSATANYTIMEWITHOUTNOTICE.4ChannelVoiceCaptureADCsAC108Revision1.0Copyright©2017X-PowersLimited.AllRightsReserved.4CONTENTSFeatures......................................................................................................................................................................5Description..................................................................................................................................................................5Applications................................................................................................................................................................6FunctionalBlockDiagram...........................................................................................................................................7PinAssignment...........................................................................................................................................................8PackageDimension.....................................................................................................................................................9Pin/SignalDescription..............................................................................................................................................10ElectricalCharacteristics...........................................................................................................................................12AbsoluteMaximumRatings.............................................................................................................................12RecommendedOperatingConditions..............................................................................................................12StaticCharacteristics........................................................................................................................................12AnalogPerformanceCharacteristics........................................................................................................................14TypicalPowerConsumption.....................................................................................................................................15TypicalApplicationDiagram.....................................................................................................................................164ChannelVoiceCaptureADCsAC108Revision1.0Copyright©2017X-PowersLimited.AllRightsReserved.54ChannelVoiceCaptureADCsICFEATURESADCfuture108dBdynamicrange(A-weighted)@0dBboostgain–90dBTHD+N@0dBboostand1.4Vppinput4programmableboostamplifierswith0dBto30dBin1dBstepADCsampleratessupported:8kHz,16kHz,22.05kHz,24kHz,32kHz,44.1kHz,48kHz,96KHzAnaloganddigitalmixerinrecorddatapathAnalogInputandoutputFourfullydifferentialmicrophoneinputs:MIC1P/N~MIC4P/N-Canbeconfiguredaspseudodifferential,single-endedmodeFourlownoisemicbiasoutputs:MIC1_BIAS~MIC4_BIAS-Programmablebiasvoltage1.5Vto3.4V-4uVnoiselevelinsignalbandwidthDigitalOutputTwodigitalmicrophoneSCLKoutput@1M~3MTwoI2Sdataoutput:-I2S/PCMformatusing2pinstooutput4channeldata-TDMformatusing1pintooutput4channeldataeven16channelof4devices-Encodingformatusing1pintooutput4channeldataeven16channelof4devicesOtherFeaturesPLLsupportawideinputforwiderangeIntegratedLDOallowingsinglesupply(3.3V~5V)4ADCchannel16mA@3.3VforlowpowerconsumptionapplicationTWIcontrolinterfacesupportupto400kHzQFN48-pinpackage,6mmx6mmDESCRIPTIONTheAC108isahighlyintegratedquad-channelADCwithI2S/TDMoutputtransition.It'sdesignedformulti-microphonearrayinhighdefinitionvoicecaptureandrecognitionapplicationplatforms.TheintegrateddigitalPLLsupportsalargerangeofinput/outputfrequencies,anditcangeneraterequiredsystemclocksfromcommonreferenceclocksuchas6-/12-MHz,6.144-/12.288-MHz,5.6448-/11.2896-MHz,13MHzand19.2MHz.Theaudiosample8kHz,12kHz,16kHz,22.05kHz,24kHz,32kHz,44.1kHz,48kHz,96kHzissupported.TheAC108integratesfoursynchronizedADCswithindependentprogrammablemicbiasvoltageandmicboostamplifiertodelivervalidchanneldatathatchannelcrosstalkcanbeeliminated.TheanaloginputportMIC1P/N~MIC4P/Nisdesignedasfourdifferentialmicrophonepinorsingle-endedline-inpin.Twosmartdigitalmicinterfacesaresupported