AW: CEM3340 sync results

[Haible Juergen]

	>Ar shorter: all tri->saw converters should give a saw with a
>glitch/step.
	>
	>Is this correct, or are there better methods?
	>Could you see any such artefacts on the 3340 saw wave?
	>
	>I think the step could be avoided by proper trimming the square
level >and
	>offset, but the glitch ? 
	>
	>How could it be done in the 3340, there is no trim pin for that.
	>Low bandwidth buffer ?

Just two guesses: Trimming probably not required
because of a clever circuit where drifting volatges cancel.
(It's on one chip after all). Glitch probably smoothed with
limited slew rate (rather than limited band width) stage.

Just guesses - I never tried to investigate further because
it is no problem in a practical VCO. If there are some
remnants of a glitch it will hurt much less on a signal
of high harmonic content (saw) than on a "dark" triangle.

JH.