[sdiy] What type of switch would this be?

Jeff Farr moogah at gmail.com
Tue Nov 8 04:41:49 CET 2005


Those AD chips do just what I need... But only come in 80 pin SMD... The
price can be overcome, but not the 80 pins methinks..

On 11/7/05, Jeff Farr <moogah at gmail.com> wrote:
>
> I need to be able to connect to any number of inputs at a time. At this
> moment I have no spec for what unconnected outputs must be, but I believe
> they will have to float. Mind you this is for analog signals, not digital.
> The purpose of this being a switch matrix to route CV signals around a
> synth.
>
> On 11/7/05, Paul Schreiber <synth1 at airmail.net> wrote:
> >
> > I've said it before: electronics, done right, is NOT a cheap hobby.
> >  Paul S.
> >
> > ----- Original Message -----
> >  *From:* Jeff Farr <moogah at gmail.com>
> > *To:* Paul Schreiber <synth1 at airmail.net>
> > *Cc:* Synth diy list <synth-diy at dropmix.xs4all.nl>
> > *Sent:* Monday, November 07, 2005 9:24 PM
> > *Subject:* Re: [sdiy] What type of switch would this be?
> >
> > 21$ per quantity of 100! Yikes!
> >
> > On 11/7/05, Paul Schreiber <synth1 at airmail.net> wrote:
> > >
> > > It's called a "crosspoint switch". They are at www.analog.com<http://www.analog.com>.
> > > Bring $$$ :)
> > >  Paul S.
> > >
> > > ----- Original Message -----
> > >  *From:* Jeff Farr <moogah at gmail.com>
> > > *To:* Synth diy list <synth-diy at dropmix.xs4all.nl>
> > > *Sent:* Monday, November 07, 2005 9:07 PM
> > > *Subject:* [sdiy] What type of switch would this be?
> > >
> > > I need an IC that has one input that can be sent to any number of it's
> > > outputs, ie in->out1 or in->out1 & out 2. Can a mux do this? What If I need
> > > a total of more than 40 outputs? (ouch). Looking over datasheets I'm begging
> > > to think I need to create a massive swich array out of smaller parts and
> > > then use a uC to do the switching, I had at first assumed there would be
> > > something available to the effect of having a 4bit input to determine the
> > > output connetions..
> > >
> > >
> >
>
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