Debouncing....at About 1Mhz

D from BC · 2007-11-01T05:53:15+00:00

This has got to be a classic signal clean up problem....I need a circuit that triggers on edge A, then ignores about 0.1uS ofjitter then triggers on edge B and then ignores a following 0.1uS ofjitter. +-+ +-+ +----------------+ +-+ +-+In | | | | | | | | | | A | | | | B | | | |-------+ +-+ +-+ +-+ +-+ +----------- || || | | Out +------------------------+ | | A' B'-------+ +------------- Edge A to A' is ~ less than 10nSEdge B to B' is ~ less than 10nSAll values are approximates."In" and "Out" are repeating waveforms.I think I can do it with:1 flip flop 1 >0.1us delay circuitSprinkled with gates..Or maybe I need 2 flip flops..one for edge A and one for edge B..I'm not even sure yet which type of FF to get.If anybody has done this problem before and doesn't mind sharing..letme know a topology...In the meantime, I'll be doodling until I get a solution...D from BC