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Help needed to identify components on small DAC

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Graygem

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I have a small DAC that I can't figure out a few parts. The DAC is based on the UDA1352TS. I am trying to find out what IC2, IC3, Ic4, and IC5 are. IC2 is labeled A3-LU. IC3 is labeled 7Z0AH (I believe). IC4 is labeled H80R. IC5 is labeled YJ then has a 66 (or 99) on it's side and then what looks like a p. Any help would be appreciated.

https://i984.photobucket.com/albums/ae321/Graygem/4SmdSmall.jpg


And here is the full board.

**broken link removed**
 
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