This is what others have done, and that I find interesting.

The original Team Guido Tent DAC

The original DAC with a discrete PLL to extract the clock from SPDIF.

Multi-rate Audio DAC (by the same team)

This is very interesting. I had the idea of doing something like this some time ago. It is the only way to have low jitter while using SPDIF and not implementing a discrete PLL.

www.audiodesignguide.com

This project aims to compare CS4397, WM8740, PCM1798, PCM1794, and AD1955. Pretty interesting !