S/PDIF Digital (Optical TOSLINK) Output

A project log for Teensy Audio Library

CD quality sound processing, integrated with Arduino sketches

paul-stoffregenPaul Stoffregen 06/07/2015 at 01:293 Comments

Thanks mostly to Frank B, we now have direct S/PDIF output from the Teensy Audio Library!

Here's a detailed blog article.

You can get optical TOSLINK digital audio with a $1 connector (Digikey 1080-1434-ND) or just a red LED shining into the optical cable.

In the photo above, the TOSLINK connector is mounted on this OSH Park PCB (under $2 for three of them).

The S/PDIF output is also now supported by the Audio System Design Tool, so you can just connect it to whatever complex audio system you like, to get S/PDIF digital output!

Here's the lengthy forum thread where this development was discussed.


Michele Perla wrote 06/09/2015 at 10:16 point

Epic stuff! @Paul Stoffregen , you really are changing the world of diy audio with the Teensy Audio Library!

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Paul Stoffregen wrote 06/08/2015 at 23:52 point

I wonder if anyone will say it's not a hack?!

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Mike Szczys wrote 06/08/2015 at 23:46 point

This is utterly incredible! Great work, and a wonderful read 

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