Library-aware resonant clock synthesis (LARCS)

  • Authors:
  • Xuchu Hu;Walter Condley;Matthew R. Guthaus

  • Affiliations:
  • University of California Santa Cruz, Santa Cruz, California CA, and Cadence Design Systems, Inc., San Jose, California CA;University of California Santa Cruz, Santa Cruz, California CA;University of California Santa Cruz, Santa Cruz, California CA

  • Venue:
  • Proceedings of the 49th Annual Design Automation Conference
  • Year:
  • 2012

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Abstract

Clock grids are often used in high-performance ASIC designs because of their low skew and robustness to variations. Resonant clock grids have the potential to reduce the power consumption of these high-performance clocks without sacrificing the skew and robustness of a clock grid. We present the first methodology to synthesize high-performance distributed resonant LC tank clock grids that utilize a pre-characterized inductor library. The use of a library reduces designer effort and total inductor area when compared with previous resonant clock grids while still attaining 59% power reduction and competitive skew when compared to traditional buffered clock grids.