Fine Tune Sensitivity 2-wired Monaural Microphone Amplifier with Regulator for Microphone Capsule

Data Sheet


  • Operating Voltage Range (VDD = 2.7V to 16V)
  • 2-wired connections
  • Built-in Regulator for Microphone Capsule (1.6V typ.)
  • Voltage Gain Range (
    24dB to 40dB (Set by external resistors.))
  • Adjust and memorize the gain by Single-wire serial interface
  • Gain Adjustment (9dB ±3dB/0.2dB step)
  • Maximum Output Voltage (1.5Vrms min.)
  • Equivalent Input Noise Voltage (−112dBV typ.)
  • CMOS Technology
  • Package (MSOP10 (TVSP10))

General Description

The NJU72097 is a monaural microphone amplifier IC including regulator for microphone capsule, gain adjustor, filter amplifier and line amplifier. It is able to set the output gain by external resistors. And it is able to adjust and memorize the gain after parts assembling. The NJU72097 is the most suitable for the microphone module which required accurate sensitivity such as ECM and MEMS microphone.


  • Microphone module
  • Hands-free microphones

Package Information

Part NumberPackage OutlinePLPPinsMaterial Declaration (RoHS/Halogen)Terminal FinishWeight(mg) (Reference)Reflow solderingFlow solderingIron solderingPacking ConditionMSLSolder Foot Print
NJU72097RB2MSOP10(TVSP10)-10-Sn2Bi19YesYesYesNon dry pack1

Sample & Buy

Part NumberPackagesStatusPacking SpecificationSampleBuy
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