[sdiy] EDN: Shift-register based Quadrature oscillator

[René Schmitz]

Hi Harry,

Harry Bissell Jr wrote:
> I've seen it done better as well... with a 1/4 sine
> table and they invert and mirror the same data... uses
> fewer resistors for arbitraty precision.
> 
> Why would there be a phase error with equal RC filters
> ???   It would be different from the input phase but
> the outputs should still be equal

With tightly matched Rs and Cs, there won't be a problem
of course. I thouhgt of mismatch there.

Cheers,
  René

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