FTM Board Club
STMicroelectronics
STEVAL-MKI139V5
Microphone coupon board based on the MP23AB01DH fully differential analog MEMS microphone

The STEVAL-MKI139V5 daughterboard contains four MP23AB01DH analog MEMS microphones.

The coupon concept facilitates performance testing of ST MEMS microphones. It is possible to detach the single PCBs hosting each microphone.

Features
  • 4 x MP23AB01DH bottom port analog MEMS microphones
  • Vsupply from 2.3 to 3.6 V
  • 135 dBSPL acoustic overload point
  • Omnidirectional sensitivity
  • Frequency range 100 Hz - 10 kHz
  • 65 dB of SNR
  • Sensitivity -38 dBFV 1 dBV
  • THD < 0.2% @ 94 dBSPL, 1 kHz
  • THD < 5% @ 130 dBSPL, 1 kHz
  • RoHS compliant