一种具有动态共模反馈的超紧凑差分调谐6ghz CMOS LC压控振荡器

IEEE Custom Integrated Circuits Conference 2006 Pub Date : 2006-09-01 DOI:10.1109/CICC.2006.320877

B. Soltanian, H. Ainspan, W. Rhee, D. Friedman, P. Kinget

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引用次数: 69

摘要

提出了一种完全集成的0.024mm2差分调谐6GHz LC压控振荡器，用于90nm大块CMOS中6+Gbps高速串行(HSS)链路。它比迄今为止在这个频率上报道的任何LC-VCO都小。其尺寸与环形振荡器相当，但相位噪声明显更好。介绍了一种使差分变容控制信号的共模电压与压控振荡器的共模电压相等的电路技术。使用差分控制，可以实现从4.5GHz到7.1GHz(45%)的宽调谐范围。在5.63GHz载波的3MHz偏置下，VCO的相位噪声测量值为-117.7dBc/Hz，而来自1.6V电源的功耗为14mW

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An Ultra Compact Differentially Tuned 6 GHz CMOS LC VCO with Dynamic Common-Mode Feedback

A fully integrated 0.024mm2 differentially tuned 6GHz LC VCO for 6+Gbps high speed serial (HSS) links in a 90nm bulk CMOS is presented. It is smaller than any LC-VCO reported to date at this frequency. Its size is comparable with ring oscillators but it has significantly better phase noise. A circuit technique is introduced to dynamically set the common-mode (CM) voltage of the differential varactor control signals equal to the VCO's CM. Using a differential control a very wide tuning range from 4.5GHz to 7.1GHz (45%) is achieved. The VCO has a measured phase noise of -117.7dBc/Hz at a 3MHz offset from a 5.63GHz carrier while dissipating 14mW from a 1.6V supply

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IEEE Custom Integrated Circuits Conference 2006

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