Digital band-pass filter - has output D flip=flop coupled to two series monoflops

摘要

The BP filter has a single D-flipflop (3) connected by its data input (U) to the output (Q) of a second monoflop (2) and by its reset input (R) to the inverted output (Q) of the second monoflop. The D-flipflop's trigger input is connected to the output of the first monoflop (1) and its inverted and noninverted outputs (Q,Q) form the filter's outputs. The advantage lies in the reduced number of components employed.