FTM Board Club
STMicroelectronics
STEVAL-MKI139V3
Microphone coupon board based on the MP23AB02B analog MEMS microphone

The STEVAL-MKI139V3 is a daughterboard containing 4 MP23AB02B analog MEMS microphones. The coupon concept allows easy performance testing of ST MEMS microphones. It is possible to detach the single PCBs hosting each microphone.

Features
  • 4 x MP23AB02B bottom port digital MEMS microphones
  • V supply from 1.6 to 3.6 V
  • 120 dBSPL acoustic overload point
  • Omnidirectional sensitivity
  • Frequency range: 100 Hz - 10 kHz
  • 64 dB of SNR
  • THD < 0.5% @ 94 dBSPL, 1 kHz
  • Sensitivity: -38 dBV
  • RoHS compliant