[hpsdr] HORTON

Jim Miller jim at jtmiller.com
Mon May 22 16:37:41 PDT 2006


Hi All

Long time lurker, first time poster, Jim Miller, first year rookie ham, 
AB3CV here!

As I've been looking at the datasheets for the various A/Ds they all appear 
to have differential inputs. Since the QSD will likely be differential 
output, perhaps the usual differential opamp or instrumentation amp can be 
dispensed in favor of simple unity gain buffers?

That might remove a potential source of distortion and allow a wide 
selection of buffer candidates.

73

jim ab3cv 


 1148341061.0


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