Title :
Active compensation of supply noise for a 5-GHz VCO in 45-nm CMOS SOI technology
Author :
Nema, Devesh ; Toifl, Thomas
Author_Institution :
Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA
Abstract :
This paper describes an active compensation circuit to reduce supply induced jitter for a 5-GHz VCO in 45-nm CMOS SOI technology. The VCO generates multiple-phases which are digitally-programmable and uses feed-forward inverting stages for faster operation. A comparison of variations in oscillation frequency of VCO due to supply noise, with and without active compensation across different process corners shows that the proposed circuit significantly reduces jitter.
Keywords :
CMOS integrated circuits; MMIC oscillators; integrated circuit noise; jitter; silicon-on-insulator; voltage-controlled oscillators; CMOS silicon-on-insulator technology; MMIC oscillators; active compensation circuit; feed-forward inverting stages; frequency 5 GHz; size 45 nm; supply noise reduction; Active noise reduction; CMOS technology; Frequency; Inverters; Jitter; Noise cancellation; Regulators; Ring oscillators; Voltage control; Voltage-controlled oscillators;
Conference_Titel :
Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-1683-7
Electronic_ISBN :
978-1-4244-1684-4
DOI :
10.1109/ISCAS.2008.4541993
