ADMP521 Overview
The ADMP5211 is a high performance, ultralow noise, low power, digital output, bottom-ported omnidirectional MEMS microphone. The ADMP521 consists of a MEMS microphone element and an impedance converter amplifier followed by a fourth-order sigma-delta (Σ-Δ) modulator. The digital interface allows for the pulse density modulated (PDM) output of two microphones to be time-multiplexed on a single data line using a...