A wide-range all-digital duty cycle corrector with a period monitor
Journal
IEEE Conference on Electron Devices and Solid-State Circuits 2007, EDSSC 2007
Pages
349-352
Date Issued
2007-12
Author(s)
Shao-Ku Kao
Abstract
A wide-range all-digital duty cycle corrector (DCC) with a period monitor is presented. It corrects the duty cycle within four cycles. It generates the output clock of 50% duty cycle when the input duty cycle is within 10% - 90%. After this DCC locked, a closed-loop monitor continuously tracks the period of input clock to keep 50% duty-cycle in every eight cycles. The proposed circuit has been fabricated in a 0.18um CMOS technology. The measured duty cycle error is between 1.3% and 1.6% and the measured frequency range is from 1GHz to 1.6GHz. © 2007 IEEE.
Subjects
All-digital; Duty cycle; Duty cycle corrector
SDGs
Other Subjects
Closed-loop monitors; Duty cycle corrector (DCC); Circuit theory; Closed loop systems; CMOS integrated circuits; Natural frequencies; Electronic equipment
Type
conference paper