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1998•European Solid-State Circuits ConferenceRequires access

A digital clock generator for an ATM switch implemented with multiphase clock

Fenghao Mu, Christina Svensson

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Abstract

A new digital clock generator using multiphase clock to create a system clock is presented. Its main features are: less sensitivity to noise; wider frequency range; digital design method. The clock generator is used in an ATM switch which needs a clock frequency of 376MHz (622MHz×32/53). The maximum time error is half of the phase difference in multiphase clock.

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What this paper is about

A new digital clock generator using multiphase clock to create a system clock is presented. Its main features are: less sensitivity to noise; wider frequency range; digital design method. The clock generator is used in an ATM switch which needs a clock frequency of 376MHz (622MHz×32/53). The maximum time error is half of the phase difference in multiphase clock.

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Available abstract

A new digital clock generator using multiphase clock to create a system clock is presented. Its main features are: less sensitivity to noise; wider frequency range; digital design method. The clock generator is used in an ATM switch which needs a clock frequency of 376MHz (622MHz×32/53). The maximum time error is half of the phase difference in multiphase clock.

Key concepts: Clock generator, Digital clock manager, Clock domain crossing, CPU multiplier, Synchronous circuit, Clock gating, Digital clock, Computer science

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