[sdiy] LM566 VCO

René Schmitz uzs159 at uni-bonn.de
Sat Jun 21 20:22:23 CEST 2003


Hi Scott,

Scott Gravenhorst wrote:
> I was once enamored with the LM566 until I found that it
> was, at the time, unobtanium.  Now it's just expensivium.
> 
> Being a tri/square chip, I wonder if anyone can comment on
> it's possible advantages over say, an LM13600 or LM13700
> tri/square VCO with regard to range and linearity?
> 
> I've built an LM13600 VCO (from the data sheet) and found it
> to be satisfactory with respect to linearity.  Since at
> least LM13700 can still be found, what reason would one have
> to spend $6.00 a pop for the LM566?  The LM13600 is also a
> single chip solution, so I'm not clear on any advantage.

Neither am I. The only advantage I see is that you need a
minimum of external connections. Which made it among the
circuits of my homepage one that I got the most inquiries
about at the time. But I wouldn't spend 6.00$ for it now.
It was ok for the 60 cents it costed back then.

Cheers,
  René

-- 
uzs159 at uni-bonn.de
http://www.uni-bonn.de/~uzs159





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