[sdiy] Saw DCO

[john mahoney]

----- Original Message ----- 
From: "Fredrik Carlqvist" <ifrc at iar.se>
>
> John, the hard synch comes in by multiplying the saw slope by a
scale factor
> K larger than 1. This makes the saw hit the roof and reset. It is
still
> reset every DCO cycle. The resulting frequency is a combination,
just like
> in normal hard sync, where a faster oscillator is reset by a slower
one. The
> fundamental is at the DCO frequency f, and there is an additional
> "fundamental" at f*K.

Now I understand, the DCO isn't affected at all. It seems that you
don't have precise control over the sawtooth's increased frequency,
but that's not always a requirement. And the saw is always kept in
sync with the DCO. Cool!
--
john