freeDSP with balanced I/Os

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dspverden

Member
2016-06-11 2:10 pm
Hello,

I would like to share one of my projects with you. It is a variant of the freeDSP with balanced inputs and outputs. You can see it here: freeDSP | An Open-Source Low-Budget Audio DSP
Please refer to that website if you want to know more about freeDSP.

The story:
End of April I was looking around for a DSP solution for my subwoofer. First I was thinking about buying a miniDSP. But then I came across the freeDSP project. Well, building something with my solder iron is more fun then just buying a ready-to-go board. But no balanced I/Os available. :(
Thus, I pulled the freeDSP CLASSIC SMD A and changed it to balanced i/os.
First prototype board was working mid-May. This board is now debugged and today I received the new PCB version. :)
I'm going to solder the components next week. I attached a picture of the first prototype board, the final board looks a little bit different.

Have fun,

R.
 

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dspverden, any updated details on your board? I checked out the KiCad design files at https://github.com/freeDSP/freeDSP-CLASSIC-SMD-BALANCED and looks like there have been even more improvements since your last post. I would love to hear about some of the features of your freeDSP implementation.

From the project's readme, it states that it can support balanced and unbalanced IO. Any details on how this is configured? Is the BOM included in the KiCad project up to date?

Thanks!
 
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