Title :
A swing-enhanced current-reuse class-C VCO with dynamic bias control circuits
Author :
Siriburanon, Teerachot ; Wei Deng ; Okada, Kenichi ; Matsuzawa, Akira
Author_Institution :
Dept. Phys. Electron., Tokyo Inst. of Technol., Tokyo, Japan
Abstract :
A swing-enhanced current-reuse class-C VCO which can theoretically achieve same phase noise figure-of-merit (FoM) as other class-C VCOs at the lowest power consumption is presented. A swing enhancement in class-C operation and an oscillation robustness are achieved through dynamic bias control circuits for both NMOS and PMOS transistors. The proposed VCO has been fabricated in 180nm CMOS process while oscillating at 4.6 GHz. The measured phase noise is -119 dBc/Hz at 1 MHz offset while consuming 1.6 mA from 1.5 V supply. An FoM of -189 dBc/Hz is achieved.
Keywords :
CMOS analogue integrated circuits; MMIC oscillators; MOSFET; field effect MMIC; voltage-controlled oscillators; CMOS process; FoM; NMOS transistors; PMOS transistors; current 1.6 mA; dynamic bias control circuits; frequency 4.6 GHz; oscillation robustness; phase noise figure-of-merit; power consumption; size 180 nm; swing-enhanced current-reuse class-C VCO; voltage 1.5 V; CMOS integrated circuits; Logic gates; MOS devices; Phase noise; Steady-state; Voltage-controlled oscillators;
Conference_Titel :
Design Automation Conference (ASP-DAC), 2014 19th Asia and South Pacific
Conference_Location :
Singapore
DOI :
10.1109/ASPDAC.2014.6742856
