自由运行环形频率合成器

2006 IEEE International Solid State Circuits Conference - Digest of Technical Papers Pub Date : 2006-09-18 DOI:10.1109/ISSCC.2006.1696201

D. Allen, A. L. Carley

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引用次数: 4

摘要

数字处理器使用单个自由运行的环形振荡器来合成多个时钟，而不需要模拟电路或反馈回路。这款4mm2的芯片采用0.18 mm工艺制造，集成了6个独立的扩频合成器，周期分辨率<0.1ps。合成器工作范围为3至400MHz，抖动<85ps，满足PCIe时钟抖动要求

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Free-Running Ring Frequency Synthesizer

A digital processor uses a single free-running ring oscillator to synthesize multiple clocks without analog circuits or feedback loops. Fabricated in 0.18mum technology, the 4mm2 die integrates 6 independent spread-spectrum synthesizers with <0.1ps period resolution. The synthesizers operate from 3 to 400MHz with a jitter <85ps, meeting PCIe clock-jitter requirements

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2006 IEEE International Solid State Circuits Conference - Digest of Technical Papers

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