一种2.5-3.2GHz CMOS差分控制连续调谐无变元LC-VCO

2007 IEEE Asian Solid-State Circuits Conference Pub Date : 2007-11-01 DOI:10.1109/ASSCC.2007.4425744

Deyi Pi, Byung-Kwan Chun, P. Heydari

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引用次数: 10

摘要

介绍了一种采用无变元调谐技术的2.5-3.2 GHz LC-VCO的设计与实现。通过改变振荡器的有效电感来差分调谐压控振荡器的振荡频率。在0.18 μ m CMOS工艺中制造，原型VCO在没有变容管的情况下实现了24%的连续调谐范围。该电路从1.8 V电源中吸取7-15 mA电流。在整个调谐范围内，测量到的相位噪声在-102 dBc/Hz和-111 dBc/Hz之间变化。

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A 2.5-3.2GHz CMOS differentially-controlled continuously-tuned varactor-less LC-VCO

The design and implementation of a 2.5-3.2 GHz LC-VCO incorporating a varactor-less tuning technique is presented. The VCO's oscillation frequency is tuned differentially by varying the effective inductance of the oscillators. Fabricated in a 0.18 mum CMOS process, the prototype VCO achieves 24% continuous tuning range without varactors. The circuit draws 7-15 mA current from a 1.8 V power supply. The measured phase noise is varying between -102 dBc/Hz and -111 dBc/Hz at 1 MHz offset across the tuning range.

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2007 IEEE Asian Solid-State Circuits Conference

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