PDM

Pulse Density Modulation (PDM) stands as a prominent digital signal modulation technique widely employed in the digitization and transmission of audio signals. This modulation method serves as an effective means of representing analog signals through a bitstream, particularly in applications related to microphone audio transmission. Operating within a voltage range of 1.8 to 3.3 volts, PDM has become a pivotal technology in the realm of audio processing, providing a robust solution for capturing and transmitting high-quality audio data in various electronic devices.

Settings

Channel: Clk & Data source

Mono & Stereo: Audio mono or stereo selection

PDM Sample Rate: PDM clock speed

Decimation Parameter: Calculation parameter for PDM to PCM

Audio Frequency: PCM audio frequency

Sound Reduction: Audio display, play & save as .WAV

Normal Mode

Audio mode