Switch Debounce
Switch Debounce
(OP)
For a variety of reasons, im looking for a way to easily debounce 8 PTMs without using schmitt triggers. Does anyone know of a good way of doing so?
Kris/Maior
Kris/Maior
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RE: Switch Debounce
<nbucska@pcperipherals.com>
RE: Switch Debounce
RE: Switch Debounce
<nbucska@pcperipherals.com>
RE: Switch Debounce
However, assuming your inputs must be logic signals since you don't want to use Schmitts, how about using the Motorola MC14490 digital Contact Bounce Eliminator chip. This has 6 separate digitally integrated de-bounce circuits per chip driven from an internal common clock. The clock frequency - and hence the eventual de-bounce time period - is simply set by one small external capacitor. This chip is CMOS and works on supply rails from 3 to 18V and I have used it in many applications and so can vouch for its effectiveness.
Enjoy!
RE: Switch Debounce
PTM: Push-to-Make (of the switch variety)
BrianG, that IC sounds to be exactly what I need, thankyou very much.
Kris
RE: Switch Debounce
The debounce circuit sounds like a winner. I'm going to get the ON data sheet and look to use this part.
Thanks for bringing it up.
RE: Switch Debounce
S-R latchs are great for debouncing a push button!
RE: Switch Debounce
RE: Switch Debounce