According to iSuppli, the MEMS microphone market for consumer electronics and mobile phones is expected to grow at a CAGR of 24% from 2009 to 2014 in revenue. Drivers include the breakthrough of multiple microphone use in prescribed noise suppression, outside of mobile phones and laptops, such as slate tablets and gaming, new consumer applications, and pass-through.
ST's MEMS microphones use the best of best-in-classAcoustic sensorsThe technology combined with OMRON II is inherently less susceptible to mechanical vibrations, temperature changes and electromagnetic interference, while providing high-fidelity audio signal reproduction. Combining ST's electronic control circuitry and Omron micromechanics in a sensor package, the microphone provides excellent audio performance with lower power consumption than traditional low capacitance (ECM) microphones. This optimized power consumption extends the battery life of portable devices for an extended user experience.
In addition to the size, stability and above the energy economy advantages of ECM microphones, MEMS microphones have made great advances in sound quality, achieved by locating multiple microphones in one device. This microphone array, facilitated by miniaturization, highly sensitive matching and frequency ST microphone response, enables active noise execution and echo cancellation, as well as beamforming, a sound processing technology that facilitates isolation of sound and its location. These features are valuable for use in environments with increasingly noisy and uncontrollable mobile phones and other devices.
Another important factor in multi-microphone applications is to ensure the high temperature stability of MEMS microphones with full flexibility in placing auxiliary microphones after reflow, including positions with high temperature drift.
ST's MP34DB01 microphone is the only device in the market with true high-fidelity audio bandwidth, offering a full 20-20,000 Hz audio band flat frequency response, coupled with an unmatched signal-to-noise ratio (62 dB) and power supply noise suppression (70 dB).
Inside the ultra-small 3x4x1 mm package, the microphone is specially designed for mobile phones, with holes placed at the bottom of the bag with sound ports. This layout enables phone manufacturers to mount a microphone on the back of a thin and light phone designed on a cell printed circuit board while still getting a short-path ambient acoustic microphone. The MP34DB01 has been recognized as a top mobile phone manufacturer and is in mass production.
In addition to ST's MEMS microphone series, the MP45DT02, is a top-of-the-line port 3.76 x 4.72 x 1.25mm ideal device to fit the size and sound of laptop and imported tablet location requirements. The microphone offers a good signal-to-noise ratio (58 dB) and superior frequency response for this market alternative.
ST's MEMS microphones are perfectly matched with our Sound Terminal ® audio processing chips, which feature the latest generation of dedicated built-in direct-attached MEMS microphones, saving component count and cost interface.
Microchip Centennial Electronic Technology (Shenzhen) Co., Ltd
Address: Shenzhen Futian District Huaqiang Road Huaqiang Plaza A Block 13H
Tel: 0755-83591082
Fax: 0755-83591083
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