Study on A Kind of N-class Digital Signal Filtering and Shaping Circuit

A kind of N-class digital signal filtering and shaping circuit,which includes the N-class signal sampling circuit,sampling signal state comparison circuit and the output decision circuit,was proposed.When sampling signal to output,the circuit determines the output signal from the relationship between the signals to avoid outputting the burr noise as useful signals.The program has a very good filtering effect for eliminating the burr noise,especially the frequently jittering noise in the process of signal transmission,and it can be widely used in digital circuitry system,PLD and other system designs.