PCM4202 AGNDL/AGNDR connection
I think you are referring to this:


Which can be confusing to a neophyte.  In these drawing conventions, if two wires cross and there is NO dot then the wires are NOT connected.

But the drawing is poorly done, the ground connection really should be drawn closer to the package to avoid this confusion.



These two pictures are electrically equivalent.

and from the eval module.