Design of 10 GHz eight-phase voltage controlled oscillator in 90nm CMOS  

作　　者：CHEN Ying-mei WANG Hui YAN Shuang-chao ZHANG Li LI Wei 

机构地区：[1]Institute of Radio Frequency and Optical Electronic Integrated Circuits,Southeast University

出　　处：《The Journal of China Universities of Posts and Telecommunications》2012年第6期113-117,共5页中国邮电高校学报（英文版）

基　　金：supported by the National High Technology Research and Development Program of China(2011AA010301);the National Natural Science Foundation of China(60976029)

摘　　要：A novel 10 GHz eight-phase voltage-controlled oscillator （VCO） architecture applied in clock and data recovery （CDR） circuit for 40 Gbit/s optical communications system is proposed. Compared with the traditional eight-phase oscillator, a new ring CL ladder filter structure with four inductors is proposed. The VCO is designed and fabricated in IBM 90 nm complementary metal-oxide-semiconductor transistor （CMOS） technology. Measurement results show the tuning range is 9.2 GHz-11.0 GHz and the phase noise of - 108.85 dBc/Hz at 1 MHz offset from the carrier frequency of 10 GHz. The chip area of VCO is 500 μm × 685 μm and the power dissipation is 17.4 mW with the 1.2 V supply voltage.A novel 10 GHz eight-phase voltage-controlled oscillator （VCO） architecture applied in clock and data recovery （CDR） circuit for 40 Gbit/s optical communications system is proposed. Compared with the traditional eight-phase oscillator, a new ring CL ladder filter structure with four inductors is proposed. The VCO is designed and fabricated in IBM 90 nm complementary metal-oxide-semiconductor transistor （CMOS） technology. Measurement results show the tuning range is 9.2 GHz-11.0 GHz and the phase noise of - 108.85 dBc/Hz at 1 MHz offset from the carrier frequency of 10 GHz. The chip area of VCO is 500 μm × 685 μm and the power dissipation is 17.4 mW with the 1.2 V supply voltage.

关 键 词：VCO eight-phase LC ring oscillator CL ladder filtering 

分 类 号：TN752[电子电信—电路与系统] TN432