No DAC? Try PDM

Ever notice that the ESP32-S3 doesn’t have a digital-to-analog converter? [Chris] did and asserts that he doesn’t care because he can just use the PDM system to get the same result. PDM — pulse density modulation — is similar to PWM and, like PWM, requires a filter that could range from a simple RC network to an active filter. You can see the result in the video below.


This is a companion discussion topic for the original entry at https://hackaday.com/2024/01/06/no-dac-try-pdm/