← 返回 JSSC 论文列表JSSC 2011第11期Clocking & PLLs0.13μmHigh-Speed Link
250 Mbps5 Gbps Wide-Range CDR With Digital V ernier Phase Shifting and Dual-Mode
提出一种采用数字游标移相和双模控制的宽范围CDR，支持250 Mbps至5 Gbps速率。
0.13μm CMOS, 1.2V, 5 Gbps, BER<10^-12
时钟数据恢复数字游标移相双模控制宽范围CDR半数字双环路
▸数字游标移相器实现13.34 ps精细相位步进
▸半数字双环路CDR实现精确跟踪
▸双模控制扩展工作范围至250 Mbps-5 Gbps
Abstract
A multi-port serial link with wide-range CDR using
digital vernier phase shifting and dual-mode control is presented.
The proposed vernier phase shifter generates finely-spaced phase
steps and provides unlimited phase rotating with a 13.34-ps phase
step at 5 Gbps. By inherently digital nature, the vernier phase
shifter enables semi-digital du al-loop CDR with precise tracking
performance, and with the dual -mode control, the proposed
CDR extends the operating range from 250 Mbps to 5 Gbps and
ach