A Novel 0.72-6.2GHz Continuously-Tunable △Σ Fractional-N Frequency Synthesizer

摘要：

This paper presents a wideband △Σ-based fractional-N synthesizer with three integrated quadrature VCOs for multiple-input multiple-output (MIMO) wireless communication applications.It continuously covers a wide range frequency from 0.72GHz to 6.2GHz that is suitable for multiple communication standards. The synthesizer is designed in 0.13-um RF CMOS process. The dual clock full differential multi-modulus divide (MMD) with low power consumption can operate over 9GHz under the worst condition.In the whole range frequency from 0.72GHz to 6.2GHz,the maximal tuning range of the QVCOs reaches 33.09% and their phase noise is -119dB/Hz-124dB/Hz @IMHz.Its current is less than 12mA at a 1.2V voltage supply when it operates at the highest frequency of 6.2GHz.

关键词： Wideband Fractional-N Synthesizer △Σ modulator multi-modulus divider MIMO Quadrature VCO

作者: Wenfeng Lou Xiaozhou Yan Zhiqing Geng Nanjian Wu

作者单位: State Key Laboratory for Superlattices and Microstructures,Institute of Semiconductors,Chinese Academy of Sciences.P.O.Box 912,Beijing 100083,P.R.China.Phone/Fax:[phone]

会议类型: 国际会议

会议名称: 2009 IEEE 8th International Conference on ASIC(第八届IEEE国际专用集成电路大会)

会议地点: 长沙

会议语种:英文

页码: 1085-1088

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）