Clock modding an x-spdif 2 from Accusilicon AS318-B

Seems like a pretty straight forward modification to replace the 318-B. What would people suggest for a plug and play clock mod... Accusilicon AS338? I can find AS338 on eBay, but not on Accusilisons website?

Accusilicon AS509is another option - but no photos of it, I'm not even sure it's pin compatible?

All suggestions welcome - I'd like to try the very best!