Title :
A pulse-driven LC-VCO with a figure-of-merit of −192dBc/Hz
Author :
Narayanan, Aravind Tharayil ; Kimura, K. ; Wei Deng ; Okada, Kenichi ; Matsuzawa, Akira
Author_Institution :
Dept. of Phys. Electron., Tokyo Inst. of Technol., Tokyo, Japan
Abstract :
This paper proposes a LC-VCO with a pulse-driven cross-coupled pair. The proposed pulse driving technique has the ability to achieve class-C like current waveform while reducing the Amplitude-Modulation to Phase-Modulation (A-PM) conversion by parasitic capacitance of the active devices. A VCO is implemented using the proposed technique in a standard 0.18um CMOS technology. It oscillates at a carrier frequency of 3.6GHz with a 0.65-V supply. The measured phase noise is -124 dBc/Hz @ 1MHz-offset with a power consumption of 2.05mW. The figure-of-merit (FoM) is -192 dBc/Hz.
Keywords :
CMOS integrated circuits; LC circuits; amplitude modulation; capacitance; microwave oscillators; phase convertors; phase modulation; phase noise; power consumption; voltage-controlled oscillators; CMOS technology; FoM; active devices; amplitude modulation-phase modulation conversion reduction; carrier frequency; class-C like current waveform; figure-of-merit; frequency 3.6 GHz; parasitic capacitance; phase noise; power 2.05 mW; power consumption; pulse-driven LC-VCO technique; pulse-driven cross-coupled pair; size 0.18 mum; voltage 0.65 V; Capacitance; Logic gates; Phase noise; Transistors; Voltage-controlled oscillators;
Conference_Titel :
European Solid State Circuits Conference (ESSCIRC), ESSCIRC 2014 - 40th
Conference_Location :
Venice Lido
Print_ISBN :
978-1-4799-5694-4
DOI :
10.1109/ESSCIRC.2014.6942092
