ICS41350 BottomPortPDMLowPowerMultiMode MicrophoneWithHighAOPMode APPLICATIONS GENERALDESCRIPTION Smartphones TheICS41350isalowpower,lownoisedigitalMEMS MicrophoneArrays microphoneinasmallpackage.TheICS41350consistsofa Tablets MEMSmicrophoneelementandanimpedanceconverter Cameras amplifierfollowedbyafourthordermodulator.Thepulse BluetoothHeadsets densitymodulated(PDM)interfaceallowstwomicrophones NotebookPCs tobetimemultiplexedonadatalineusingasingleclock. SecurityandSurveillance TheICS41350hasmultiplemodesofoperation:High FEATURES Performance,LowPower(AlwaysOn),StandardandSleep. SPEC LOWPOWER STANDARD HIGH TheICS41350haslowpowerandhighSNRinalloperational MODE MODE PERFORMANCE modes.Ithas126dBSPLAOPinHighPerformancemode,and MODE 120dBSPLAOPinStandardandLowPowermodes. Sensitivity 26dBFS1dB26dBFS1dB32dBFS1dB SNR 63dBA 64dBA 64dBA TheICS41350supportsultrasoundapplicationsinHigh Current 185A 430A 650A PerformanceMode.Ithasanextendedultrasonicresponseupto AOP 120dBSPL 120dBSPL 126dBSPL 40kHzwithhighSNR. Clock 400800kHz 1.03.3MHz 4.14.8MHz 3.52.650.98mmsurfacemountpackage TheICS41350isavailableinasmall3.52.650.98mm Lowpower:185AinLowPowerMode surfacemountpackage.Itisreflowsoldercompatiblewith Extendedfrequencyresponsefrom50Hzto>20kHz nosensitivitydegradation. Ultrasoundsupportupto40kHz SleepMode:12A Highpowersupplyrejection(PSR):97dBFS Fourthordermodulator Digitalpulsedensitymodulation(PDM)output CompatiblewithSn/PbandPbfreesolderprocesses RoHS/WEEEcompliant FUNCTIONALBLOCKDIAGRAM ORDERINGINFORMATION PART TEMPRANGE PACKAGING ICS41350 ICS41350 40Cto+85C 13TapeandReel CLK PDM ADC EV ICS41350FX MODULATOR DATA POWER CHANNEL MANAGEMENT SELECT InvenSenseInc. InvenSensereservestherighttochangethedetail 1745TechnologyDrive,SanJose,CA95110U.S.A DocumentNumber:DS000047 specificationsasmayberequiredtopermit Revision:1.1 +1(408)9887339 improvementsinthedesignofitsproducts. www.invensense.com RevDate:06/23/2016 VDD GND SELECT ICS41350 TABLEOFCONTENTS GeneralDescription.....................................................................................................................................................................1 Applications.................................................................................................................................................................................1 Features.......................................................................................................................................................................................1 FunctionalBlockDiagram............................................................................................................................................................1 OrderingInformation...................................................................................................................................................................1 TableofContents....................................................................................................................................................................................2 Specifications..........................................................................................................................................................................................4 Table1.Acoustical/ElectricalCharacteristicsGeneral..............................................................................................................4 Table2.Acoustical/ElectricalCharacteristicsHighPerformanceMode...................................................................................4 Table3.Acoustical/ElectricalCharacteristicsStandardMode..................................................................................................5 Table4.Acoustical/ElectricalCharacteristicsLowPowerMode..............................................................................................5 Table5.DigitalInput/OutputCharacteristics..............................................................................................................................6 Table6.PDMDigitalInput/Output..............................................................................................................................................6 TimingDiagram............................................................................................................................................................................7 AbsoluteMaximumRatings....................................................................................................................................................................8 Table7.AbsoluteMaximumRatings...........................................................................................................................................8 ESDCaution.................................................................................................................................................................................8 SolderingProfile...........................................................................................................................................................................9 Table8.RecommendedSolderingProfile*..................................................................................................................................9 PinConfigurationsAndFunctionDescriptions.....................................................................................................................................10 Table9.PinFunctionDescriptions.............................................................................................................................................10 TypicalPerformanceCharacteristics.....................................................................................................................................................11 TheoryOfOperation.............................................................................................................................................................................12 PDMDataFormat......................................................................................................................................................................12 Table10.ICS41350ChannelSetting.........................................................................................................................................12 PDMMicrophoneSensitivity.....................................................................................................................................................12 ApplicationsInformation......................................................................................................................................................................14 LowPowerMode.......................................................................................................................................................................14 DynamicRangeConsiderations.................................................................................................................................................14 ConnectingPDMMicrophones..................................................................................................................................................14 UltrasoundApplications............................................................................................................................................................16 SleepMode................................................................................................................................................................................16 StartUpTime.............................................................................................................................................................................16 SupportingDocuments.........................................................................................................................................................................17 ApplicationNotes......................................................................................................................................................................17 PCBDesignAndLandPatternLayout...................................................................................................................................................18 PCBMaterialAndThickness......................................................................................................................................................18 HandlingInstructions............................................................................................................................................................................19 DocumentNumber:DS000047 Page2of22 Revision:1.1 RevDate:06/23/2016