Design a high- speed clock duty- cycle detector (dcd)

Abstract

The governing clock's duty cycle depends on both side edges of the clock, playing a vital role in ensuring homogeneous performance, such as in Double Data Rate [1], etc. The DCC (Duty Cycle Corrector) circuit is the best-supporting circuit in this case, correcting duty cycle distortion when the clock goes through a chain of heterogeneous ingredients caused by temperature, process, voltage variations, etc. The DCD (Duty Cycle Detector) circuit is a sub-block of the DCC circuit, contributing to the correct functioning of DCC by detecting the percentage of duty cycle distortion. In terms of this project, we are gravitating toward expanding the accuracy percentage by increasing the working frequency to 8 GHz. This work focuses on circuit and layout implementation to analyze DCD. Concerning the increased frequency, there are manifold potential troubles noteworthy in both circuit and layout fields; hence, they must be addressed. Although issues caused by mismatches persist, to some extent, our design is quite complete.