On-chip global clock distribution using directional rotary traveling-wave oscillator

  title={On-chip global clock distribution using directional rotary traveling-wave oscillator},
  author={Yulei Zhang and James F. Buckwalter and C. Cheng},
  journal={2009 IEEE 18th Conference on Electrical Performance of Electronic Packaging and Systems},
We revisit the rotary clock scheme in [1], and firstly propose and analyze the multiple-mode operations of rotary clock structure, which can be utilized to generate multiple clock frequencies within one loop. By replacing original inverter pairs with feed-forward differential buffers and adding U-shape T-line segments, a novel rotary clock scheme is presented to guarantee the directionality of traveling wave in the closed-loop. Design tradeoffs and methodologies are discussed for this novel… CONTINUE READING


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