Title :
A −173 dBc/Hz @ 1 MHz offset Colpitts oscillator using AlN contour-mode MEMS resonator
Author :
Jabeom Koo ; Tazzoli, Augusto ; Segovai-Fernandez, Jeronimo ; Piazza, Gianluca ; Otis, Brian
Author_Institution :
Dept. of Electr. Eng., Univ. of Washington, Seattle, WA, USA
Abstract :
A differential Colpitts oscillator using AlN MEMS CMR designed in 0.13 um CMOS is presented in this work. The oscillator operates at 1.16 GHz, with a total power consumption of 4.2 mW at 1 V supply. It achieves a phase noise of -143.6 dBc/Hz, -173.3 dBc/Hz at 100 kHz and 1 MHz offset frequency respectively with a figure of merit (FOM) of 228.3 dB. Current-based temperature compensation was employed to reduce oscillator drift across temperature.
Keywords :
CMOS integrated circuits; aluminium compounds; compensation; micromechanical resonators; oscillators; phase noise; AlN; AlN MEMS CMR; AlN contour-mode MEMS resonator; CMOS; FOM; current-based temperature compensation; differential Colpitts oscillator; figure of merit; frequency 1 MHz; frequency 1.16 GHz; offset Colpitts oscillator; offset frequency; oscillator drift; phase noise; power 4.2 mW; power consumption; size 0.13 mum; voltage 1 V; CMOS integrated circuits; III-V semiconductor materials; Micromechanical devices; Phase noise; Resonant frequency;
Conference_Titel :
Custom Integrated Circuits Conference (CICC), 2013 IEEE
Conference_Location :
San Jose, CA
DOI :
10.1109/CICC.2013.6658547
