Ultra-low power digital PDM XENSIV™ MEMS microphone Discover the IM67D128B – an ultra-low power digital XENSIV™ MEMS microphone, designed for applications which require long battery life and environmental robustness in an exceptionally small package. With a Signal-to-noise ratio (SNR) of 67dB(A) and low corner frequency of 10Hz the microphone enables a clear audio experience without compromising on battery life. Enabled by a revolutionary digital microphone ASIC, the IM67D128B balances performance in a very small package with low current consumption of 540µA.