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Cgs synth

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Re: CGS33 Matrix Mixer Basic Circuit Questions

2007-03-13 by peng3002

Thanks AM and RB for the explanation. Sounds like good design
practice. I'll use it from now on. Thanks, Ken, for exposing me to yet
another nice subcircuit.


peng


--- In cgs_synth@yahoogroups.com, Andre Majorel <aym-htnys@...> wrote:
>
> On 2007-03-13 00:40 -0000, peng3002 wrote:
>
> > As far as the buffer stage goes, even without the 1K resistor it has a
> > high impedance (100K). What does the 1K resistor do? I'm guessing that
> > I'd be fine without it, but I would like to employ it in other designs
> > if it lends some added benefit.
>
> Current limiting in case someone plugs ±15 V into the module
> while it is not powered ? Though I would expect the resistor to
> be followed by a pair of reverse-biased diodes for good measure.
>
> --
> André Majorel <URL:http://www.teaser.fr/~amajorel/>
> Do not use this account for regular correspondence.
> See the URL above for contact information.
>

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