Title :
A multiloop ring VCO design in 0.18µm CMOS technology
Author :
Duan, Jihai ; He, Zhilan ; Kang, Chunlei ; Wang, Jianfeng ; Zhang, Jizuo
Author_Institution :
Sch. of Inf. & Commun., Guilin Univ. of Electron. Technol., Guilin, China
Abstract :
A multiloop method is presented for highly nonlinear ring oscillators in this paper. This circuit permits lower tuning gain through the use of coarse/fine frequency control, which also translates into a lower sensitivity to the voltage at the control lines. A 8-GHz VCO in SMIC 0.18μm 1P6M CMOS technology is designed. The linear tuning range of VCO is from 7.95 to 8.45GHz with the tuning voltage vary from 0 to 1.8V. The post simulation result shows that the power consumption is 48mW, the phase noise of the proposed VCO is -88.24dBc/Hz at 1MHz and -113.2dBc/Hz at 10MHz, and core chip area is 130μm × 120μm.
Keywords :
CMOS integrated circuits; integrated circuit design; integrated circuit modelling; voltage-controlled oscillators; CMOS technology; SMIC; coarse/fine frequency control; frequency 1 MHz; frequency 10 MHz; highly nonlinear ring oscillators; multiloop ring VCO design; power 48 mW; power consumption; size 0.18 mum; CMOS integrated circuits; Delay; Phase noise; Ring oscillators; Tuning; Voltage-controlled oscillators;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2010 10th IEEE International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-5797-7
DOI :
10.1109/ICSICT.2010.5667842
