Datasheet

For further information contact your local STMicroelectronics sales office.

January 2013 Doc ID 024077 Rev 1 1/4

STEVAL-MKI129V1

Microphone coupon board

based on the MP45DT02 digital MEMS microphone

Data brief

Features

■ 4 x MP45DT02 top port digital MEMS

microphones

■ Daughterboard to be used with

STEVAL-MKI126Vx kit

■ Vsupply from 1.64 V to 3.6 V

■ 120 dBSPL acoustic overload point

■ Omnidirectional sensitivity

■ PDM single-bit output

■ 61 dB of SNR

■ Sensitivity -26 dBFS

■ RoHS compliant

Description

The STEVAL-MKI129V1 is a daughterboard

designed to be used in conjunction with the

STEVAL-MKI126Vx (Smart Voice) kit, containing

4 MP45DT02 digital MEMS microphones.

The coupon concept allows easy performance

testing of ST MEMS microphones. When inserted

in the Smart Voice board, it is possible to detach

the single PCBs hosting each microphone.

www.st.com

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STEVAL-MKI129V1 Microphone coupon board based on the MP45DT02 digital MEMS microphone Data brief Features ■ 4 x MP45DT02 top port digital MEMS microphones ■ Daughterboard to be used with STEVAL-MKI126Vx kit ■ Vsupply from 1.64 V to 3.
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Test circuit STEVAL-MKI129V1 1 Test circuit Figure 1. Test circuit schematic 8 03 '7 '$7$ *1' &/. & X) & Q) '287 /5 *1' 9'' /5 &/.
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STEVAL-MKI129V1 2 Revision history Revision history Table 1. Document revision history Date Revision 09-Jan-2013 1 Changes Initial release.
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STEVAL-MKI129V1 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale.