USB Dock

Created by [Person20020] • Started on July 26, 2025

A USB C dock with included headphone DAC

July 26th: Designed basic schematic for USB hub.

Today I made the basic schematic design for the USB C hub. At first I was going to make it with 3 USB C ports and a single USB A but I decided I don't need USB A so much so I designed it with just USB C.

schematic usb only

Total time spent: 2h

July 27th: Added DAC

I decided that I want to add a headphone audio output on this because just a USB hub seems too simple. I did some research and decided I'm going to use the PCM 2902. Datasheets are so confusing.

I started to wire things up but i'm rather confused on how the input and output are supposed to be connected. So far I have basically been copying the example in the datasheet.

Total time spent: 3h

July 30th: Finished Schematic

I finished the schematic with the DAC.

schematic with dac

Total time spent: 4h