Pre-stored digital word generator

摘要

A digital word is generated by storing the timing of the leading edge and trailing edge in a digital memory. The memory is addressed from a counter. The timing of the output of the memory is compared with a reference leading edge timing and a reference trailing edge timing in separate digital comparators. The coincidence of the timing of the stored timing in the memory and the reference timing sets and resets a flip-flop to generate a digital word.