Recommended PCM CODEC for HL8548

Hello all,

I need to add a PCM audio interface to a HL8548 device. I checked the HL6528&HL8548 development kit schematic, at page 56 there is the audio circuit but without named used IC. I don’t have the development kit in my hand so I can’t check what is used. The only description is 13bit and it’s obviously IC package with 32pins.
Since the HL8548 has no MCLK signal, the range of possible CODEC ICs is limited. Anyone can give me advice which CODECS can be used - or at least can tell me which part is used at development kit?
Thanks a lot in advance!

[Solved] I found the application note regarding the PCM codec.