XENSIV™ IM66D120A high performance digital MEMS microphone: best fit for automotive applications in particular Active Noise Cancellation High-performance digital MEMS microphones qualified according to automotive quality standard AEC-Q103-003. They are suited to all applications inside and outside the car, where the best audio performance in harsh environments and a digital PDM interface is required. They also perfectly support acoustic noise cancellation applications with its flat and stable frequency and phase response and a very low LFRO (Low frequency roll-off) at 7 Hz.