At 20:25 1998-07-26 +0200, you wrote:
>I'm in real need for a monitor switch. One of those that are capable of
>switching between several PC machines using one mouse, keyboard and VGA
>monitor. The obvious solution would of course be to go out and buy one but I
>kind of like to build things.....
>
>Have anyone one the list done a design of this kind or have any thoughts on
>the subject? What special considerations should one have regarding switching
>video streams?
>
>/Ake

Maxim have very nice Muxes and video amps with more than sufficient bandwidth.

They even come Mux + buffer amn in same package.

I have designed VGA switches with theese and it worked great.
You got to know something about HF to get tracks on PCB correct etc.
I also used a ground plane.

For the synk etc standard logic can be used LSTTL or HCT, both with
protection of course.

If interested, I think my design is still in production by another company.
 It is a special design for very high quality use in bank central office.


We thank Peter L. Peres for his wide covering writing on PC switching. :)

/Morgan
/  Morgan Olsson, MORGANS REGLERTEKNIK, SE-277 35 KIVIK, Sweden \
\  mrt@iname.com, ph: +46 (0)414 70741; fax +46 (0)414 70331    /