| 一种带有升压电路的0.5V 3GHz低功耗LC VCO设计 |
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| 引用本文： | 周海峰,韩雁,董树荣,韩晓霞,王春晖.一种带有升压电路的0.5V 3GHz低功耗LC VCO设计[J].固体电子学研究与进展,2010,30(1). |
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| 作者姓名： | 周海峰 韩雁 董树荣 韩晓霞 王春晖 |
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| 作者单位： | 浙江大学微电子与光电子研究所,杭州,310027 |
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| 基金项目： | 国家高科技研究发展计划(863计划)资助项目 |
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| 摘 要： | 采用标准的0.13μm CMOS工艺实现了0.5V电源电压,3GHz LC压控振荡器。为了适应低电压工作,并实现低相位噪声,该压控振荡器采用了NMOS差分对的电压偏置振荡器结构,去除尾电流,以尾电感代替,采用感性压控端,增加升压电路结构使变容管的一端升压,这样控制电压变化范围得到扩展。测试结果显示,当电源电压为0.5V,振荡频率为3.126GHz时,在相位噪声为-113.83dBc/Hz@1MHz,调谐范围为12%,核心电路功耗仅1.765mW,该振荡器的归一化品质因数可达-186.2dB,芯片面积为0.96mm×0.9mm。
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| 关 键 词： | 低压 低功耗 低相位噪声 电感电容压控振荡器 |
A 3 GHz Low Power LC VCO with Voltage Boosted Circuit from 0.5 V Supply |
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| ZHOU Haifeng,HAN Yan,DONG Shurong,HAN Xiaoxia,WANG Chunhui.A 3 GHz Low Power LC VCO with Voltage Boosted Circuit from 0.5 V Supply[J].Research & Progress of Solid State Electronics,2010,30(1). |
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| Authors: | ZHOU Haifeng HAN Yan DONG Shurong HAN Xiaoxia WANG Chunhui |
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| Abstract: | Implemented in a standard 0.13μm CMOS process,a 0.5 V 3 GHz lOW powervoltage controlled oscillator(VCO)is presented.Due to the use of the N-pair only voltage-biased oscillator,two tailinductors instead of the tail current source,the inductive voltage control tech-nique,and a voltage-boosted tuning technique,the VCO measured has a phase noise of -113.83 dBc/Hz at 1 MHz offset from 3.126 GHz oscillation frequency with 1.765 mW power dissipation from 0.5 V power supply and approximately 12%tuning range.The figure of merit is -186.2 dB and the chip area iS 0.96 mm×0.9 mm. |
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| Keywords: | low voltage low power low phase noise LC VCO |
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