Hi,
What is your opinion about this signal?
The upper one is from a parallel port, from TurboCNC 4.1 (a DOS version) at a velocity of 1200 hZ with a pulse width of 200 micro seconds. The pulse is the high side (+5V) of the square wave.
The lower signal is the same signal fed twice into a 74HC14N chip (an Hex inverting Schmitt trigger); fed twice to keep it non inverted and from another 5V supply.
The blur is from my camera, the signal is crisp.
What concern me is the jitter that you can see in both the signals.
It is about the first time that I use an oscilloscope to really study a signal and I am wandering if this is a normal behavior.
[ame="http://www.youtube.com/watch?v=dl3ocmfS6Ds"]YouTube- 100_2033.MOV[/ame]
Thanks!
Alain