Creating Your Own Chip (4) – PDM Section

Creating Your Own Chip (4) - PDM Section

Word count: 821, reading time approximately 5 minutes PDM (Pulse Density Modulation) is an interface commonly used to connect digital microphones, which have become a standard peripheral in modern electronic devices. It can be considered an essential interface in SoC chips. First, let’s understand the timing of the PDM interface. 1 Interface Timing The digital … Read more

Practical Audio Playback with UAC and PDM

Practical Audio Playback with UAC and PDM

This article is the first in a series, with plans to share a series of articles based on the UAC+PDM audio playback practical cases. PDM stands for Pulse Density Modulation, which can be simply understood as a method that differs from PWM in that it uses the density of 1s and 0s to represent amplitude … Read more