[sdiy] VCO reset time

ASSI Stromeko at compuserve.de
Mon Jun 7 22:52:01 CEST 2004


On Monday 07 June 2004 13:39, Czech Martin wrote:
> Integrated VCOs sometimes have two saw cores, thus
> hiding the discharge ramp.

It appears far simpler to use a triangle core and a +- coefficient amp 
in this case. You still have to slew the output full swing, however.

> And you need no bipolar current source, but switches.

This seems a more likely reason for using that topology. Plus the 
charging current itself never changes, but is steered around to 
different integrators.


Achim.
-- 
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