Design of Resonant Global Clock Distributions
نویسندگان
چکیده
This paper presents a new approach to global clock distribution in which traditional tree-driven grids are augmented with onchip inductors to resonate the clock capacitance at the fundamental frequency of the clock node. Rather than being dissipated as heat, the energy of the fundamental resonates between electric and magnetic forms. The clock drivers must only provide the energy necessary to overcomelosses. As a result, power reductionof over 80% is possible depending on the Q of the resonant system. Clock latency is also improved because the effective capacitance of the grid is lower, and fewer buffer stages are necessary to drive the grid. Skew and jitter reductions come about because of this reduced buffer latency.
منابع مشابه
Linköping Studies in Science and Technology
Today’s microprocessors with millions of transistors perform high-complexity computing at multi-gigahertz clock frequencies. The ever-increasing chip size and speed call for new methodologies in clock distribution network. Conventional global synchronization techniques exhibit many drawbacks in the advanced VLSI chips such as high-speed microprocessors. A significant percentage of the total pow...
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