STEVAL-MKI129V7

STEVAL-MKI129V7 Microphone coupon board based on the MP34DT04-C1 digital MEMS Data brief Description The STEVAL-MKI129V7 daughterboard is designed to be used in conjunction with the XNUCLEO-CCA02M1 expansion board; it is able to export the four additional PDMs for any user application requirement (NBW algorithm detection). Features x x x x x x x x x 4 x MP34DT04-C1 top port digital MEMS microphones Daughterboard to be used with X-NUCLEOCCA02M1 Vsupply from 1.6 to 3.6 V 120 dBSPL acoustic overload point Omnidirectional sensitivity PDM single-bit output 64 dB of SNR Sensitivity -26 dBFS ±1.5 dB RoHS compliant June 2017 DocID030666 Rev 1 For further information contact your local STMicroelectronics sales office 1/4 www.st.com Schematic diagram 1 STEVAL-MKI129V7 Schematic diagram Figure 1: STEVAL-MKI129V7 circuit schematic V DD1 MP 34DT04-C1 DA TA 1 4 CLK L/R GN D C2 1 μF 3 Data U1 GND1 V dd 2 L/R 1 1 V DD1 5 C1 100 n F CLK 1 GND1 J1 L/R 1 V DD1 4 5 6 4 5 6 3 2 1 3 2 1 CLK 1 DA TA 1 CON6 GND1 2/4 DocID030666 Rev 1 STEVAL-MKI129V7 2 Revision history Revision history Table 1: Document revision history Date Version 22-Jun-2017 1 Changes Initial release. DocID030666 Rev 1 3/4 STEVAL-MKI129V7 IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2017 STMicroelectronics – All rights reserved 4/4 DocID030666 Rev 1