Resistors on the digital in/output of a PGA2310 chip, why?

[MarkS]

https://youtu.be/vALt6Sd9vlY?si=lfLOLMF_B2ab5S6C

btw - you can safely remove the si=... part of the url -- it is simply a tracking identifier.

True, but I posted it at 4:30 AM and just copied and pasted.

[Dan R. Hansen]

In regards to the split ground, watch this. It's worth the time.

https://youtu.be/vALt6Sd9vlY

It seemed like it had a lot of interesting information, if the guy is right.
From what I understand, in my specific case, I would actually want split ground plains because of the low frequencies that occur in audio.
But I am still in doubt as to what way is the best to bridge the ground plain together?