The STMicroelectronics Microphone coupon board or daughterboard containing 4 MP23DB01HP digital MEMS microphones works with a supply voltage ranges from 1.6 to 3.6 V. The coupon concept allows easy performance testing of ST MEMS microphones. It impossible to detach the single PCBs hosting each microphone PDM single bit output
135 dBSPL acoustic overload point
65 dB of SNR in performance mode
RoHS and WEEE compliant