Title :
A Low-Complexity, Low-Phase-Noise, Low-Voltage Phase-Aligned Ring Oscillator in 90 nm Digital CMOS
Author :
Borremans, Jonathan ; Ryckaert, Julien ; Desset, Claude ; Kuijk, Maarten ; Wambacq, Piet ; Craninckx, Jan
Author_Institution :
IMEC, Leuven
fDate :
7/1/2009 12:00:00 AM
Abstract :
An 8-phase phase-aligned ring oscillator in 90 nm digital CMOS is presented that operates up to 2 GHz. The low-complexity circuit consumes 13 mW at 2 GHz and 1.2 mW at 400 MHz, while a flat in-band phase noise below -120 dBc/Hz is achieved, in close agreement with the presented theory. The circuit occupies an area of 0.008 mm2 .
Keywords :
CMOS digital integrated circuits; UHF integrated circuits; UHF oscillators; low-power electronics; phase noise; digital CMOS technology; flat in-band phase noise; frequency 2 GHz; frequency 400 MHz; phase-aligned ring oscillator; power 1.2 mW; power 13 mW; size 90 nm; Circuits; Energy consumption; Frequency; Inductors; Injection-locked oscillators; Jitter; Phase noise; Ring oscillators; Transceivers; Voltage-controlled oscillators; CMOS; Clock multiplier; low-voltage; realignment; ring oscillator;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2009.2020231
