68-2202-08　SparkFun Analog MEMS Microphone Breakout　BOB-19389

仕様

• Description
• TheSparkFunAnalogMEMSMicrophoneBreakoutmakesiteasytoworkwiththeSPH8878LR5H-1analogmicrophonefromKnowles.ThisboardfeaturesanOpAmptobringtheoutputofthemicrophonetoausablelevel,allowingyoutoplugdirectlyintoanADConamicrocontrollerorsomethingliketheSparkFunSpectrumShield.
• Inadditiontoamplifyingthesignal,theOpAmpaddsabiasvoltageof1/2VCC.Withsoundsourcessuchasanormalspeakingvoiceafewfeetawayfromthemicrophone,theAUDoutputsignalwillbeatabout200mVpeak-to-peak.Alsonote,thislowprofilemicrophonehasitsportonthebottomside,sothemicrophonecanbemountedflushtotheoutersurfaceofyourenclosure.Thismicrophoneisomni-directional,whichmeansitdoesagoodjobofpickingupsoundsourcesfromalldirections.
• GetStartedwiththeAnalogMEMSMicrophoneBreakoutHookupGuide
• Features
• SupplyVoltage：2.3-3.6V
• AverageCurrentConsumption：265μA
• FrequencyRange：7Hz-36kHz
• Signal-to-NoiseRatio：66dBV/Pa
• Sensitivity：～44dBV/Pa（Single-EndedMode）
• -3dBRollOffat7Hz/+3dBFlatnessat36kHz
• AcousticOverloadPoint：134dBSPL
• OPA344provides600Ωoutputimpedance