tag 标签: admp421

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  • 所需E币: 4
    时间: 2020-1-13 14:21
    大小: 221.48KB
    上传者: 二不过三
    ADMP421PreliminaryTechnicalDataFEATURESSmallandthin3mm×4mm×1mmsurface-mountpackageHighSNRof60.5dBAHighsensitivityof26dBFSFlatfrequencyresponsefrom100Hztoover12kHzLowcurrentconsumption:OmnidirectionalMicrophonewithBottomPortandDigitalOutputADMP421GENERALDESCRIPTIONTheADMP421isalowcost,lowpower,digitaloutputbottomportedomnidirectionalMEMSmicrophone.TheADMP421consistsofaMEMSmicrophoneelement,anoutputamplifier,andafourth-orderΣ-Δmodulator.Thedigitalinterfaceallowsforthepulsedensitymodulated(PDM)outputoftwomicrophonestobetimemultiplexedonasingledatalineu……