Abstract
A delay-locked loop with self-calibration circuit for reducing phase error is presented. In this DLL, the current mismatch adjusting circuit is proposed in order to reduce the static phase error. To reduce the static phase error the circuit eliminates the mismatch of up/down currents in the charge pump (CP). The current mismatch adjusting circuit is implemented with phase expanded circuit to amplifier the static phase error. To solve the false locking problem, a new phase detector is proposed. The proposed circuit has been fabricated in a 0.18μm CMOS process. The measured static phase errors are without and with calibration circuit are 29ps and 3.89ps at 1.2GHz, respectively.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
