Title :
A low-phase-noise CMOS LC oscillator with a ring structure
Author :
Jae Joon Kim ; Beomsup Kim
Author_Institution :
Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
Abstract :
This LC ring oscillator is an architectural experiment to reduce the phase noise of an LC oscillator even further with a ring type structure. An LC oscillator with a special ring type structure performs phase noise filtering and attenuation. To prove the concept, several LC-ring oscillators are fabricated in 0.6 /spl mu/m, single-poly, triple-metal, CMOS. The three-stage LC-ring oscillator has -132 dBc/Hz measured phase noise at 600 kHz offset frequency from a 900 MHz carrier.
Keywords :
CMOS analogue integrated circuits; UHF integrated circuits; UHF oscillators; integrated circuit noise; phase noise; 0.6 micron; 900 MHz; CMOS LC ring oscillator; phase noise; Frequency estimation; Noise measurement; Phase measurement; Phase noise; Power supplies; Resonance; Resonant frequency; Ring oscillators; Varactors; Voltage-controlled oscillators;
Conference_Titel :
Solid-State Circuits Conference, 2000. Digest of Technical Papers. ISSCC. 2000 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-5853-8
DOI :
10.1109/ISSCC.2000.839846
