The dither option in SAC was added to keep ADA8000 converters which had the Crisis Logic chips with the auto mute function from muting. I have four of those particular ADA8000 converters and they were a pain to use with SAW. Those converters have been replace with ADA8200 converters.

As I recall, the dither option that was added to SAC was not added to SAW. Earlier ADA8000 converters didn't have the Crisis Logic chips so the dither option in SAC is not needed.
William Bushnell