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Microphone Interface Chip Suppresses EMI/RFI Noise

Filters / Ferrites, Products

STMicroelectronics’ new miniature printed circuit board mounted microphone interface circuitry integrates noise filtering and ESD protection on single IC. Although demand for embedded microphones is increasing, little extra space – if any – is available inside the enclosure. Designers need solutions that make the microphone smaller and allow the essential interface circuitry to be mounted on the printed circuit board. ST’s EMIF02-MIC07F3 is a next-generation device integrating the complete noise filtering, ESD protection and biasing for one microphone in a single IC occupying only 1.37mm2. The single chip replaces multiple discrete components that consume at least 20.8mm2.Learn more from STMicroelectronics.

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Interference Technology

Established in 1970, Interference Technology helps EMI/EMC engineers find solutions to their various testing, design, application and regulatory issues by publishing articles, news and other practical content. We help suppliers in these areas to find the right customers for their components, materials, test equipment and services through a wide range of marketing services, including lead generation, branding, market research and events. The publication is available in various printed and electronic media formats, with readers in over 60 countries. We also publish issues in local languages in China, Japan and Europe.

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