The INMP621ACEZ-R7 is a wide dynamic Microphone with PDM digital output. This microphone clips at 133dB SPL, which is useful for clearly capturing audio in loud environments. The microphone consists of a MEMS microphone element and an impedance converter amplifier followed by a fourth-order Σ-Δ modulator. The digital interface allows the pulse density modulated (PDM) output of two microphones to be time multiplexed on a single data line using a single clock.
- Omni-directional response
- Fourth-order Σ-Δ modulator
- Digital pulse density modulation (PDM) output
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