Infineon MEMS Mic Features Improved Acoustical Performance and Power Consumption

Article By : Infineon Technologies

Infineon's next-generation analog MEMS microphone features a very high dynamic range and a tight frequency curve matching for the most effective audio signal processing.

According to research consultancy Omdia, Infineon Technologies AG has successfully positioned itself as the market leader for MEMS microphones. Based on MEMS chip unit sales, the market share was reported to have been catapulted to a staggering 43.5%. This positions Infineon at number one, with a lead of almost 4pp over second place and more than 37pp over third place. This positive development is due also to Infineon’s long-term experience in MEMS microphone design and high volume manufacturing for delivering an unmatched consumer experience.

Now, the company has launched a next-generation analog MEMS microphone that renders even better results—the XENSIV MEMS microphone IM73A135. Featuring a 73dB SNR and a high acoustic overload point (135dB SPL), the 4x3x1.2mm microphone touts a very high dynamic range and a tight frequency curve matching for the most effective audio signal processing and the industry’s lowest power consumption of 170μA. Infineon’s new MEMS microphone allows designers to reach a level of high audio performance restricted to ECMs while at the same time reaping the benefits inherent in MEMS technology.

Moreover, the new MEMS microphone offers excellent characteristics to enhance active noise cancellation in headphones, a market that, according to Mordor Intelligence, will grow to approximately 250 million devices by 2025 with a CAGR of 16%. Additionally, the low self-noise makes the IM73A135 especially suited for high-quality audio capturing required in conference systems, cameras, or audio recorders.

Infineon is not only expanding its portfolio of branded MEMS microphones but also extending its lead via a new low power digital ASIC technology. This lowest power technology will be used in various next-generation digital microphones manufactured and branded by the “Infineon-inside” microphone partner network. An low-power mode current consumption of as little as 110µA makes it a perfect match for the wearables segment, including smartwatches and fitness bands, to name a few.

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