|May26-09, 05:37 PM||#1|
Full dc recovery
I need to do dc recovery on a sine signal with a variable amplitude. (so its not between +U and -U but between +2U and 0) It is fast enough if the offsets adjusts within minutes. There is a quick hack in the Art of electronics, where they set a diode and a capacitor in series, but this leaves me one diode drop below 0. Is there a nice (possibly standard) circuit that does a full dc recovery. I try to keep the distortion low.
Another way would be quadrature although this would double the frequency. Can anyone recommend a good low distortion chip there.
|May26-09, 05:41 PM||#2|
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