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STEMlab 122.88-16 - DC coupled version

Posted: Tue Jan 15, 2019 9:58 pm
by fbalakirev
It seems that newly announced STEMlab 122.88-16 SDR will have AC coupled inputs.

If that's the case, would there be an option or easy mod to make it DC coupled? I could see us interested in getting at least couple dozen boards if that's the case, otherwise we'll have to pass...

Re: STEMlab 122.88-16 - DC coupled version

Posted: Sat Feb 02, 2019 10:09 am
by Ste_Trat
You could circumvent this problem by modulating the DC Signal / chopping it, with a AD633JR.
The DC component = Amplitude of the newly generated signal.

Another option is to use a DC to frequency converter.