More on Crosspoints.

[Roel Das]

More crosspoint switches...

I recently received a mail from MAXIM, containing a video design guide.
They've got new crosspoint switches, MAX4456 is 8X8. Others are MAX 4359,
MAX 4360, MAX458 and MAX459, these have less inputs...

I ordered some samples from MAXIM for my endwork project half a year ago. I
got 2 samples of 8 different chips with datasheets, a CDROM catalog, and a
nice paperback selector guide. Really nice and interresting. And they send
me some design guides afterwards. I like those people. Alot better than the
boring boxes of AD or BurrBrown. But you shouldn't complain if they send you
samples right?

 The crosspoint switches made me think about making some sort of a rocktron
patch mate kind of thing. You can easily route your signals within these.
Might be a future project...

Bye
Roel


>    More thoughts on the subject,
>
>    The MAX335 looks like an excellent chip for your application, Paul!
>
>    More thoughts on the subject, regarding Crosspoint chips...
>
>    Having looked at the Mitel chip MT8816, I noticed that you can
> literally control each switch.  Well, wouldn't it work that if you tie
> the output lines directly to an opamp's in I/V configuration and then put
> the input resistor on the input line of the crosspoint...would that work
> then?  You wouldn't get any additional feedback from one channel to the
> next because the inputs are now protected.  The output is your summing
> node of your op-amp which should now handle the multiple signals being
> fed by the multiple switch-points.
>    I suppose the issue then is if the crosspoint is feeding current, if
> so, then perhaps this would be a single chip solution!
>    Feedback?  I'm probably way off.  :)
>
>    Tony
>
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