STEVAL-MIC004V1 STMicroelectronics

STEVAL-MIC004V1 Data brief Microphone coupon board based on the MP23ABS1 analog MEMS Features 4 x MP23ABS1 bottom port analog MEMS microphones Vsupply from 1.52 to 3.6 V 130 dBSPL acoustic overload point Omnidirectional sensitivity Current consumption: 120 A 64 dB of SNR Sensitivity -38 dBV 1 dB WEEE compliant RoHS compliant Description The STEVAL-MIC004V1 is a daughterboard containing 4 MP23ABS1 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. Summary table Microphone coupon board based on the STEVAL- MP23ABS1 analog MIC004V1 MEMS High performance MEMS audio sensor single MP23ABS1 ended analog bottom- port microphone DB3777 - Rev 1 - November 2018 www.st.com For further information contact your local STMicroelectronics sales office.STEVAL-MIC004V1 Schematic diagram 1 Schematic Figure 1. STEVAL-MIC004V1 board schematic VDD U1 OUT 1 5 VDD Out VDD C1 C2 2 4 100nF 1uF GND GND MP23ABS1 GND1 J1 4 3 4 3 5 2 GND1 5 2 OUT 6 1 6 1 VDD CON6 GND1GND1 GND1 Figure 2. STEVAL-MIC004V1 example of external electrical connections VDD GND R2 1 2 3 J1 6 5 4 R1 AMPLIFIED OUT OUT Op Amp DB3777 - Rev 1 page 2/4 3 GND