Categories: NEW PRODUCTS

New automotive-qualified XENSIV™ MEMS microphone with analog interface for audio and active noise cancelation systems

Active Noise Cancellation (ANC) ensures a quiet vehicle interior and provides passengers with a more relaxed driving experience. Furthermore, using advanced ANC solutions instead of passive damping methods significantly reduces the vehicle weight, which benefits vehicle efficiency. For ANC systems with an analog interface, Infineon Technologies AG (FSE: IFX / OTCQX: IFNNY) is now expanding its automotive microphone portfolio with the XENSIV™ MEMS microphone IM68A130A with a flat frequency response to frequencies below 10Hz. It builds on the successful launch of Infineon’s first automotive-qualified digital MEMS microphone, the IM67D130A, and combines the company’s automotive expertise with its technical know-how in high-end MEMS microphones.

The IM68A130A microphone features a flat frequency response, a stable phase response, and a very low frequency roll-off (LFRO = 10Hz). The high signal-to-noise ratio (SNR = 68dB(A)) and great acoustic overload point (AOP = 130 dBSPL) provide excellent speech performance, making it a perfect product for general-purpose microphones in any audio system. It can also be used for beamforming and ANC, where microphones are strategically placed in the cabin or at exterior locations to detect sounds in the cabin. An inverted sound wave is then generated through the audio speakers to reduce the sound level in the cabin.

Infineon’s new microphone is qualified according to the AEC-Q103-003 standard, which meets the requirements of the automotive industry. This helps to reduce the effort and risk of failure in module and system qualification. The product will be available for at least the typical lifecycle of a vehicle, enabling savings in design-in effort and the development of platform solutions. In addition, its extended operating temperature range of up to +105°C allows for flexible use in various application environments inside and outside the vehicle.

Availability

The XENSIV MEMS microphone IM68A130A can be ordered now. More information is available at www.infineon.com/mems-microphones-for-automotive/im68a130a/

The next product in the portfolio to be launched shortly is the IM66D130A with a high SNR, AOP and low LFRO. The universal microphone is also suitable for ANC and voice applications. With the digital PDM (pulse density modulation) interface, it can be very easily integrated into multi-microphone systems based on the A²B bus.


Credit: Infineon

Danit

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