New PDM microphone, small package, low power consumption

     Infineon's MEMS microphone development strategy includes MEMS, ASIC and the packaging of the sensor series. Therefore, the company has full ownership of the performance, quality and technological innovation of its products. Based on its proprietary technology, the company released the latest member of XENSIV MEMS microphone product portfolio, the ultra-low power digital microphone IM69D128S.

     The microphone is suitable for applications requiring high SNR/low microphone self-noise, long battery life and high reliability. The unparalleled signal-to-noise ratio of 69dB (A) can provide a clear audio experience without affecting the battery life. The device adopts advanced digital microphone specific integrated circuit (ASIC), setting a new benchmark in current consumption: 520 μ A。

     This is equivalent to half of the consumption of existing models with similar performance on the market. In addition, the microphone has mastered the challenging task of switching between different power and performance profiles without generating sound interference, that is, users can hear the fault.

     The PDM microphone is based on Infineon's latest sealed double-film MEMS technology, providing high entrance protection (IP57) at the microphone level. Due to its ultra-low power consumption, this device is the perfect choice for audible applications, such as real wireless earplugs, earplug earphones, and battery life is the key hearing enhancement device. Small size and high performance can also realize other space-critical applications, such as wearable devices, smart phones and Internet of Things devices.