ICS40618 HighDynamicRangeMicrophonewithDifferentialOutputandLowPower GENERALDESCRIPTION APPLICATIONS TheICS40618isananalogMEMSmicrophonewithveryhigh Smartphones dynamicrangeandalowpowerAlwaysOnmode.TheICS AlwaysOnlistening 40618includesaMEMSmicrophoneelement,animpedance Wearabledevices Stillandvideocameras converter,andadifferentialoutputamplifier. IoTdevices Thismicrophonefeaturesalowpowermode,whichisactive whenthesupplyvoltageis<2.0V.Inthismode,the FEATURES ICS40618operateswith55A. SPEC HIGHPERFORMANCE LOWPOWER Otherhighperformancespecificationsinclude132dBSPL MODE MODE acousticoverloadpointinhighperformancemode,tight SNR 67dBA 67dBA 1dBsensitivitytoleranceandenhancedimmunitytoboth Current 165A 55A radiatedandconductedRFinterference. AOP 132dBSPL 129dBSPL TheICS40618selectroacousticperformancematchesthe Differentialnoninvertinganalogoutput topportICS40619,makingthispairofmicrophonessuitable 38dBVsensitivity(differential) tousetogetherinapplicationsrequiringbothtopandbottom 1dBsensitivitytolerance portdevices. Extendedfrequencyresponsefrom50Hzto20kHz EnhancedRFimmunity TheICS40618isavailableinasmall3.50mm2.65mm 85dBPSRR 0.98mmbottomportsurfacemountpackage. 3.502.650.98mmsurfacemountpackage CompatiblewithSn/PbandPbfreesolderprocesses RoHS/WEEEcompliant FUNCTIONALBLOCKDIAGRAM ORDERINGINFORMATION PART TEMPRANGE PACKAGING ICS40618 40Cto+85C 13TapeandReel EV ICS40618FX OUTPUT+ OUTPUT AMPLIFIER OUTPUT LOW-POWER MODE SWITCHING POWER ICS-40618 VDD GND InvenSenseInc. InvenSensereservestherighttochangethedetail 1745TechnologyDrive,SanJose,CA95110U.S.A DocumentNumber:DS000044 specificationsasmayberequiredtopermit Revision:1.0 +1(408)9887339 improvementsinthedesignofitsproducts. www.invensense.com ReleaseDate:3/21/2016 ICS40618 TABLEOFCONTENTS GeneralDescription.....................................................................................................................................................................1 Applications.................................................................................................................................................................................1 Features.......................................................................................................................................................................................1 FunctionalBlockDiagram............................................................................................................................................................1 OrderingInformation...................................................................................................................................................................1 TableofContents....................................................................................................................................................................................2 Specifications..........................................................................................................................................................................................3 Table1.ElectricalCharacteristics................................................................................................................................................3 AbsoluteMaximumRatings....................................................................................................................................................................5 Table2.AbsoluteMaximumRatings...........................................................................................................................................5 ESDCaution.................................................................................................................................................................................5 SolderingProfile...........................................................................................................................................................................6 Table3.RecommendedSolderingProfile*..................................................................................................................................6 PinConfigurationsAndFunctionDescriptions.......................................................................................................................................7 Table4.PinFunctionDescriptions...............................................................................................................................................7 TypicalPerformanceCharacteristics.......................................................................................................................................................8 TheoryOfOperation...............................................................................................................................................................................9 LowPowerMode.........................................................................................................................................................................9 BalancedOutput..........................................................................................................................................................................9 ApplicationsInformation......................................................................................................................................................................10 CodecConnection......................................................................................................................................................................10 SupportingDocuments.........................................................................................................................................................................11 EvaluationBoardUserGuide.....................................................................................................................................................11 ApplicationNotes......................................................................................................................................................................11 PCBDesignAndLandPatternLayout...................................................................................................................................................12 PCBMaterialAndThickness......................................................................................................................................................12 HandlingInstructions............................................................................................................................................................................13 PickAndPlaceEquipment.........................................................................................................................................................13 ReflowSolder.............................................................................................................................................................................13 BoardWash...............................................................................................................................................................................13 OutlineDimensions...............................................................................................................................................................................14 OrderingGuide..........................................................................................................................................................................14 RevisionHistory.........................................................................................................................................................................15 ComplianceDeclarationDisclaimer......................................................................................................................................................16 Page2of16 DocumentNumber:DS000044 Revision:1.0