The signal is VGA 1024 x 768 15khz at MAX would this suit the chip?
I am currently not using a relay setup its manual at the moment.
How would we delay the chips so its not possible for them to have 1 card half hooked up? eg (the delay between switching cards)
VGA 1024 x 768 is called "XGA" and typically requires 65Mhz of bandwidth. I'm not 100% sure if that is total, or if that is for each line. I am almost positive the MC14551 will *NOT* pass that without causing massive distortion in the video quality, but you can try it. You will probably need a better chip. I will look for a generic demux with that kind of bandwidth in the meantime..
Also, what is exactly the 15Khz refereeing too? Horizontal refresh?.
Hrm that's odd, atm i am using a VGA male connector with standard wire soldered to the monitor nothing special
Well if thats going to be a big thing i guess i could always cheat and use this KVM switch i found in my bag of goodies...... :S
Its triggered by a momentary dpst switch.
So i think this means its not usable in this application because it doesnt support 15khz ? (guess i can always hook it up and press the button and see what happens !
Well i can report that that KVM is eith S&*(#T or plain FU^*()*)ED
...
I believe its the khz barrier.
I spoke to a gent today who said i can draw it on a computer (better not be paint!) and send it to a company and they can make it for about $15
I believe i have a circuit board kit laying around somewhere i can hand draw it and develop it in the solution if we get something working well in a bread board.
It may be that the KVM switches between signals by simply shunting the inactive one to ground, like this?
In the sim a sine input gives an output centred around ground (within 8mV). The asc file is attached if you want to play.Is the output signal properly centered around ground?
Was auditing time at my work, and well that ---- is just no fun at all!.
i tryed 20 different [KVMs and they] all distorted the picture and caused alot of noise on the line.
(scrambled picture)
So i was thinking about programming a Pic to send some commands to it via PS2.
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