MOTM

What he said :)

--- In motm@yahoogroups.com, "mate_stubb" <mate_stubb@y...> wrote:
> The common method for generating a sine output from a VCO involves 
> taking the native waveform that the vco generates (usually a 
> sawtooth), then deriving a triangle (often with a small notch at 
the 
> peak), then using the derived triangle to drive a CA3080 into the 
> nonlinear region to approximate a sine wave. The key word here 
> is "approximate". It is not that pure. An oscillating VCF, however, 
> can generate a very pure sine wave. When I do FM and cross linked 
> chaos patches, I generally get better results when both modulator 
and 
> modulatee are oscillating filters.
> 
> Moe
> 
> 
> --- In motm@yahoogroups.com, "foraxx" <omgemag@h...> wrote:
> > I've heard that it is difficult for a VCO to create a sine 
waveform
> > (or really a good quality sine wave).  Is this true and why is it 
> > so?  Its obvious to me that it would be harder to generate a sine 
> > wave in comparison to a square wave, but what is specifically 
> > challenging theoretically and in practice?