AW: [sdiy] Patch Routing Idea...

Ullrich Peter Ullrich at kapsch.net
Wed Feb 28 07:48:16 CET 2001


>> And take a matrix circuit for the audio matrix (MT8816 from Mitel or similar)
>
>nice up to there..
>take a close look, they will allow one input to several outputs, but not
>several inputs to one output (or several inputs to several outputs) they also 
>have a low ON resistance (<50ohms) which means you
>couldn't do the CV summing, if you could find one that let multiple inputs
>goto multiple outputs AND
>that had an on-resistance of about 10K then you'd be talking...

That's right.

For mixing/summing purposes we used one chip per ouput with summing
resistors on every input... I made a board with 8 MT8816 on 1 Euro-PCB for 
the company I am working for...

Ciao
Peter

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