[sdiy] Interesting matrix

[steve thomas]

Hi ..the more epensive version of the AD75019 16x16 crosspoint switch, is
the AD8113 (or maybe AD8116) .
These have internal buffering of the inputs/outputs which can be
enabled/disabled in software.
These cost about 160 pounds in Farnell.
The same can be achieved for a lot less money using external buffering on
the AD75019.
Both chips use +/-12V analogue and +5V digital power..so I am pretty sure AS
are using
these chips.

cheers

steve thomas

> steve thomas wrote:
>
> >   Hi Paul/all,
> >                     well I would guess it is either using a regular
AD75019
> >    chip with additional buffers or the more expensive (250 quid?)
version
> > with internal buffering in the
> >   chip.
>
> Well the PDF says this:
>
> CAUTION!
> The switcher IC is expensive. Incorrect installation and use of the
patcher can result in damage to the IC and replacement is expensive and at
your cost!
> Do not exceed the power supply voltages of +/-12 and 5V.
> Do not plug the power cable in incorrectly.
> The voltage range of signals that can be patch is +/-12V. Do not exceed.
>
> Maybe this gives some clue as to the chip used ... it's an expensive chip
which gets blown up when you put in signals outside than +V / -V .. hmm, on
second thoughts this doesn't narrow it down too much.
>
> Seb
>
>
>