Title :
A wide tuning range QCCO based on CMOS active inductors
Author :
Zhang, Jun ; Liu, Huihua
Author_Institution :
Res. Instn. of Electron. Sci. & Technol. of UESTC, Chengdu, China
Abstract :
In this paper, a quadrature current-controlled oscillator (QCCO) based on active inductors has been implemented in SMIC 0.13 um 1P8M RF CMOS process. Simulation results show that this circuit can achieve a very wide tuning range of 85.7% from 400 MHz to 1 GHz and the phase noise is from -97.3 dBc/Hz@1MHz to -91.5 dBc/Hz@1MHz between the two ends of the tuning range. The QCCO core only draws approximately 3.5 mA current from a 1.2 V power supply. Due to the absence of conventional spiral inductors, this circuit occupies a much smaller areas.
Keywords :
CMOS analogue integrated circuits; electric current control; inductors; oscillators; 1P8M RF CMOS process; CMOS active inductors; SMIC; conventional spiral inductors; current 3.5 mA; frequency 400 MHz to 1 GHz; power supply; quadrature current-controlled oscillator; size 0.13 mum; voltage 1.2 V; wide tuning range QCCO core; Active inductors; CMOS integrated circuits; Impedance; Phase noise; RLC circuits; Tuning;
Conference_Titel :
SOC Conference (SOCC), 2012 IEEE International
Conference_Location :
Niagara Falls, NY
Print_ISBN :
978-1-4673-1294-3
DOI :
10.1109/SOCC.2012.6398395
