Knowles PDM Mono Audio Microphone - SPM1423HM4H
Summary
Low-power, top-port MEMS microphone with PDM digital output, designed for high-fidelity audio capture in compact devices.:contentReference[oaicite:2]{index=2}
Description
The **SPM1423HM4H** is a MEMS-based microphone featuring a Pulse Density Modulation (PDM) interface, designed for high-fidelity audio capture in space-constrained applications. It operates with a supply voltage range of 1.6V to 3.6V and offers a signal-to-noise ratio (SNR) of 61.5 dB. The microphone is omnidirectional, capturing sound from all directions, and is suitable for use in various embedded systems requiring audio input.:contentReference[oaicite:9]{index=9}
The **Right Channel** boolean property allows configuration of the microphone's output channel.:contentReference[oaicite:12]{index=12}
The component provides **Control** and **Data** pins for interfacing with the microphone.:contentReference[oaicite:15]{index=15}
Diagram:
Categories
- File:TArduinoAudioCategory.png Category Audio – Audio input components.
Properties
- Enabled – Enables or disables the component.
- Right Channel – Configures the microphone's output channel (boolean).:contentReference[oaicite:20]{index=20}
Pins
Input Pins
- Control – Control signals for microphone operation.
- Data – Digital audio data output.:contentReference[oaicite:25]{index=25}
Output Pins
- Out – Microphone audio output.:contentReference[oaicite:28]{index=28}