After rather long break, project received big update - it is now on sale!

Big homework was done on the revision B. I had to rebuild power section completely, using not one but three Ultra-low noise LDOs for each power line of PCM5102 DAC. This played out really well, when no audio is playing it is quiet as a grave.

I re-did layout around PCM5102 DAC, generally carefully implementing TI's datasheet recommendations. Output filters now closer to DAC, as they should be, and buffer caps are layed out in more optimal way.

Also reduced ground fill to necessary area arounf DAC, since it is actually collecting CPU and Memory noise when covering whole board.

Major effort was done to provide 1-click software configuration via Ansible playbook. An case you're not aware, you can configure all about your Pi remotely, using automation scripts, which Ansible playbook essentially is. But more redistributable.

All artifacts are now available on project's github

End result is below