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Cgs synth

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Re: CGS33 Matrix Mixer Basic Circuit Questions

2007-03-13 by Andre Majorel

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/>
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