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General Guidance on S/PDIF to audio decoder
General Guidance on S/PDIF to audio decoder
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Old 10th December 2016, 02:06 AM   #1
dougm62 is offline dougm62
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Default General Guidance on S/PDIF to audio decoder

I'm working on a fairly simple BT Audio project. I'm using an RN-52, which I have configured for S/PDIF output; and picked up a cheap decoder box from Amazon:


This works great and eliminates all the buzzing and ticking that the analog output was producing, but now it's time to take the next step and build a dedicated PCB that includes the BT, the S/PDIF decoder and an amplifier.

My question is, is there a go-to S/PDIF to audio decoder chip or solution that everyone uses? I've looked at the DIR9001 and some other chips I found from searching here and the Goog, but they seem to be overly complicated for what I'm looking for.

Thank you for your time and help,

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Old 10th December 2016, 04:07 AM   #2
abraxalito is online now abraxalito  United Kingdom
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I'm not aware of a single chip solution that takes you all the way from S/PDIF to audio. Normally that'll be two chips. The ESS9018 DAC has S/PDIF in but still needs signal conditioning on its back-end.

What do you find too complicated about DIR9001? Its a relatively straightforward decoder in my experience.
I know you think you understand what you thought I said but I'm not sure you realize that what you heard is not what I meant - Alan Greenspan
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Old 10th December 2016, 03:13 PM   #3
dougm62 is offline dougm62
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Yes - I had this dream that I could find something that was a decoder on one end and amplifier-ready on the other end with some passives. I'm really more of a motion control guy than an audio guy so this project will be expanding my horizons :-)

But my main question is what is the go-to chip in the audio community for this. Absolute audio quality isn't top priority since the devices will have a single 4 or 5" speaker.

I'll spend some time with the DIR9001 and ESS9018 datasheets today.

btw, I opened the converter I got from Amazon - it looked very straight forward, maybe 20 passives, but they scraped the markings off the chip. However, the chip is a 28-TSSOP, same as the 9001.

Thank you,


Last edited by dougm62; 10th December 2016 at 03:39 PM. Reason: additional information
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