Title :
A 0.5V 2.41GHz, 196.3dBc/Hz FoM differential colpitts VCO with an output voltage swing exceeding supply and ground potential requiring no additional inductor
Author :
Joo-Myoung Kim ; Seong Joong Kim ; Seok-Kyun Han ; Sang-Gug Lee
Author_Institution :
Dept. of Electr. Eng., KAIST, Daejeon, South Korea
Abstract :
A low-voltage differential Colpitts VCO that achieves an output voltage swing above the supply voltage and below the ground potential to improve the phase noise while requiring no additional inductor for a small chip area is proposed. Implemented in a 65nm CMOS process, the proposed VCO achieves the phase noise of -131.05dBc/Hz at an offset of 1MHz from an oscillation frequency of 2.41GHz and a FoM of 196.3dBc/Hz while dissipating 1.74mW from a 0.5V supply.
Keywords :
CMOS integrated circuits; inductors; oscillators; phase noise; CMOS process; fom differential colpitts VCO; frequency 2.41 GHz; inductor; output voltage swing; phase noise; power 1.74 mW; supply and ground potential; supply voltage; voltage 0.5 V; wavelength 65 nm; CMOS integrated circuits; Electric potential; Frequency measurement; Inductors; Phase noise; Voltage-controlled oscillators; Oscillators; phase noise; voltage-controlled oscillator (VCO);
Conference_Titel :
Radio Frequency Integrated Circuits Symposium (RFIC), 2013 IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4673-6059-3
DOI :
10.1109/RFIC.2013.6569516
