“…As a crucial component of the fractional-N frequency synthesizer, the frequency divider puts forward higher requirements. Therefore, a high operating speed and low power consumption fractional-N frequency divider are highly desired [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20]. The working speed limitation of pulse swallow frequency divider is determined by the delay time of MC signal (τ MC ) [1,2,3,20,21,22,23,24,25,26].…”