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Mobiles Hear Better in Loud Environments with Advanced MEMS Microphone from STMicroelectronics

Geneva, Switzerland – WEBWIRE

Geneva, October 1, 2014 The STMicroelectronics MP23AB02B MEMS microphone maintains ultra-low distortion at less than 10% up to very high external sound-pressure levels, enabling equipment such as smartphones and wearable devices to perform better when placing calls or recording audio in loud environments.

With acoustic overload level of 125dBSPL and signal-to-noise ratio of 64dBA, the 3.35mm x 2.5mm x 0.98mm microphone delivers market-leading performance for its minuscule size. The key is STs dedicated pre-amplifier design, which prevents saturation of the output signal even when background-noise levels are high, such as in concert venues, bars or clubs, or if the user is speaking loudly close to the microphone. In addition, omnidirectional sensitivity ensures excellent overall performance and versatility in mobile applications.

The MP23AB02B is also easy to design-in. It operates from a single supply voltage in the 1.8V-3.6V range and generates a single-ended output. Typical operating current of 150A ensures ultra-low power consumption, which simplifies thermal management and helps maximize battery life. Specified over the extended operating-temperature range from -40C to +85C, the microphone also ensures outstanding ruggedness and reliability.

The MP23AB02B is in volume production now in the RHLGA 3-lead metal-cap package, priced from $1.00 for orders of 1,000 pieces.

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