Dolby Digital 5.1 Decoder IC?

[kgray9]

Hello all!

Forgive me if I do not sound knowledgeable, as I am definitely not very much so lol.

I am planning on building a ~1400W 6 channel audio amplifier for home theater. I am stuck on how to decode Dolby Digital (or other multichannel format) from SPDIF or HDMI though. I was thinking that maybe I could use SII9777CLUC for separating digital audio from HDMI, then to a PCM1690DCAR to decode the digital to 8 analog outputs. But this ideas seems way too complicated for me.

So far I am using 2x TPA3255 and 1x TPA3251 for the audio amplifiers. Now I would just like to be able to get 5.1 audio input from HDMI or SPDIF. I am hoping there is a single IC capable of that?

Thanks in advance for any ideas or input!

 

[kgray9]

I have found several ICs but they all seem to be very outdated:
NE5241
PT8501
YSS912C
SSM2126A
CS49300

Are any of these good?

 

[kgray9]

Anyone, any ideas? I would really appreciate any input.

 

[rabbitz]

Isn't there licencing issues with Dolby and DTS? Easiest to get a AV receiver with pre outs.

 

[kgray9]

Hello @rabbitz !

I'm not sure. I have seen that I might have licensing issues, but all of the info I am finding is pretty old, so I was hoping I could get some straight forward answers! I seem to be banging my head on a brick wall .

 

[wcwc]

Do a search. There was another thread in the past few weeks where someone was building his own boards to do this.