A burst-mode clock recovery circuit with a novel dual bit-rate structure is presented. It utilizes two gated oscillators to align the clock with data edges and can operate in half-rate clocking mode, doubling data throughput, as well as in full-rate clocking mode. The gated oscillator reset-phase control scheme causes the starting phase of gated oscillators to alternate repeatedly between 0° and 180° according to the current clock phase. A prototype chip was designed with the 0.18-μm CMOS technology, and a 1.25/2.5-Gb/s dual-mode operation was verified by measurement.
|Number of pages||5|
|Journal||IEEE Transactions on Circuits and Systems II: Express Briefs|
|Publication status||Published - 2007 Jan|
Bibliographical noteFunding Information:
Manuscript received October 9, 2005; revised May 18, 2006. This work was supported by the Ministry of Science and Technology of Korea and the Ministry of Commerce, Industry and Energy through the System IC 2010 program. This paper was recommended by Associate Editor J. Liu.
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering