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 revenue. Drivers include breakthroughs in the use of multiple microphones in regulation of noise suppression, mobile phones and laptops beyond tablets and games, new consumer applications, and pass-through.
ST's MEMS microphones use the best best-in-class acoustic sensor technology combined with Omron II to be developed to be inherently immune to mechanical vibration, temperature changes and electromagnetic interference, while providing high-fidelity audio signal reproduction. Combining ST's electronic control circuitry and Omron's micromechanics in an encapsulated sensor, the microphone provides superior audio performance over traditional low-capacitance (ECM) microphones. This optimized power consumption extends the battery life of a portable device for an extended user experience.
In addition to the size, stability and energy economy advantages over ECM microphones, MEMS microphones have made great progress in sound quality by placing multiple microphones in one device. This microphone array is facilitated by miniaturized, high-sensitivity matching and frequency ST microphone response, enabling active noise execution and echo cancellation, as well as beamforming, a sound processing technology that facilitates isolation soundness and its location. These characteristics are valuable for use in an increasingly noisy and uncontrollable environment with mobile phones and other devices.
Another important factor in multi-microphone applications is ensuring that the auxiliary microphone is placed after reflow, including sufficient flexibility with higher temperature drift positions for the high temperature stability of MEMS microphones.
ST's MP34DB01 microphones are the only devices on the market with true hi-fi audio bandwidth, providing a full 20-20,000 Hz audio frequency band with a flat frequency response, coupled with an unmatched signal-to-noise ratio (62 dB) and power supply noise suppression (70 dB).
Inside, in an ultra-compact 3x4x1 mm package, the microphone is specially designed for mobile phones, with holes placed at the bottom of the package for the sound port. This layout allows phone manufacturers to mount microphones on the back of thin and light phones with a cell printed circuit board design while still getting a short-path ambient sound microphone. The MP34DB01 has been confirmed as a top mobile phone manufacturer and is being mass-produced.
In addition to ST's MEMS microphone series, MP45DT02, is a top-of-the-line port 3.76 x 4.72 x 1.25mm ideal device for size and sound laptops and imported tablets. 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 the company's Sound Terminal ® audio processing chips, featuring the latest generation of built-in, direct-to-MEMS microphones that save on component count and cost.
Microchip Centennial Electronic Technology (Shenzhen) Co., Ltd
Address: 13H, Block A, Huaqiang Plaza, Huaqiang Road, Futian District, Shenzhen
Phone: 0755-83591082
Fax: 0755-83591083
Q Q：1051085817
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