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Digital Microphone Includes Fully Integrated 0.70 mm2 MEMS Device

Thu, 04/14/2011 - 7:16am

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digital microphone with MEMSAkustica, Inc. announced a new single-chip digital MEMS microphone for high-quality voice applications in laptops, tablets and netbook PCs. The AKU230 leverages Akustica’s patented monolithic CMOS MEMS platform, a technology which integrates the mechanical function of microphones and other sensors with analog and digital electronics—all in a single chip. As part of Bosch, Akustica has added in-house foundry capabilities. AKU230’s microphone die, which contains the microphone membrane, amplifier and sigma-delta converter, is 0.84 mm x 0.84 mm. This means the single-chip CMOS MEMS die is believed to be the smallest fully integrated MEMS device in the world. With a footprint of 3.76 mm x 4.72 mm, and 1.2 mm tall, the AKU230 is suited to thin form-factor integrations. The microphone features -26 dBFS +/-2 dB sensitivity, 56 dB typical SNR, -57 dBFS power supply rejection, highly-matched sensitivity control and stereo-microphone data multiplexing, suitable for dual microphone arrays that create directionality and noise suppression to enhance audio quality, and immunity to radio frequency and electromagnetic interference, further improving voice capture.


Akustica, Inc.
412-390-1730, www.akustika.com 

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