I needed to connect one RCA digital SPDIF output to a TOSLINK optical input.
As many times, a simple device with that functionality was again much more expensive
that what I believed reasonable. I found some circuits on the net and I
adapted those designs to my needs. I finally came up to this circuit:
Since it was very simple and I only needed one, I didn�t design a PCB. I built it
on a project board with the following layout:
|
|
|
|
|
|
Although it does not meet the standard in terms of impedances and isolation, it does the job, and has worked with every device I�ve connected to it for more than two years now.