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Clock Generation and Distribution Using Traveling-Wave Oscillators with Reflection and Regeneration

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4 Author(s)
Wang, R. ; Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN ; Cheng-Kok Koh ; Byunghoo Jung ; Chappell, W.J.

We propose a novel traveling-wave oscillator (R2TWO) that uses reflection and regeneration of waves on a transmission line to generate multi-GHz square wave signals. We also propose a scalable, low-power, low-skew and low-jitter clock distribution network by tiling the basic R2TWO s in a regular fashion. Measurement results of a TSMC 0.18mum CMOS test chip show that it can generate and distribute near full-swing 6.5GHz global clock signals with power saving of more than 75% (compared with a traditional ring oscillator). The measured jitter is less than 0.84ps, and the skew less than 1.3ps

Published in:

Custom Integrated Circuits Conference, 2006. CICC '06. IEEE

Date of Conference:

10-13 Sept. 2006