0 votes 0 votes You are given a free running clock with a duty cycle of 50% and a digital waveform f which changes only at the negative edge of the clock. Which one of the following circuits (using clocked D flip-flops) will delay the phase of f by 180°? kvkumar asked May 24, 2016 kvkumar 369 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.