Phased tri waves?

[danial stocks]

If you run an n bit binary counter into a DAC and low pass filter the o/p 
you can get a ramp [use up/dn cnt to get tri..] now if you invert the MSB on 
the counter and run a second DAC you get 90' out of phase..  now op amp 
inverter provides the 3rd 90' wave..

Cheers,
Dan
>Anyone have a circuit handy for generating 3 90 degree out of phase
>triangle waves from a input triangle? It should work over a wide freq.
>range. This is probably pretty simple but my brain is full of other
>things at the moment...
>
>Regards.
>-------------------------
>John Blacet
>Blacet Research Music Electronics
>http://www.blacet.com
>-------------------------
>blacet at metro.net
>-------------------------
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>http://www.blacet.com/mailform2.html

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