Design of Wide - range Clock and Data Recovery Circuit based Dual-loop DLL using 2-step DPC

Autor: Ki-Sang Jung, Kang-Jik Kim, Seong-Ik Cho, Guihan Ko
Rok vydání: 2012
Předmět:
Zdroj: The Transactions of The Korean Institute of Electrical Engineers. 61:324-328
ISSN: 1975-8359
Popis: A recovered jitter of CDR(Clock and Data Recovery) Circuit based on Dual-loop DLL(Delay Locked Loop) for data recovery in high speed serial data communication is changed by depending on the input data and reference clock frequency. In this paper, 2-step DPC which has constant jitter performance for wide-range input frequency is proposed. The designed prototype 2-step CDR using proposed 2-step DPC has operation frequency between 200Mbps and 4Gbps. Average delay step of 2-step DPC is 10ps. Designed CDR circuit was tested with 0.18um CMOS process.
Databáze: OpenAIRE