Title :
A thorough analysis of the tank quality factor in LC oscillators with switched capacitor banks
Author :
Toso, Stefano Dal ; Bevilacqua, Andrea ; Gerosa, Andrea ; Neviani, Andrea
Author_Institution :
DEI, Univ. of Padova, Padova, Italy
fDate :
May 30 2010-June 2 2010
Abstract :
A thorough analysis of the tank quality factor in LC oscillators using switched capacitor banks has been carry out taking into account the contribution of the switched capacitances in the off state. Analysis results, confirmed by circuit level simulations, clearly show that the contribution of the switched capacitances in off state strongly affects the quality factor of the capacitor bank, and thus of the tank, increasing it. General expressions of the quality factor of useful one-port reactive networks are also presented.
Keywords :
capacitors; oscillators; LC oscillator; circuit level simulation; switched capacitor bank; tank quality factor; Analytical models; Capacitance; Circuit simulation; Energy consumption; Frequency; Phase noise; Q factor; Switched capacitor networks; Tuning; Voltage-controlled oscillators;
Conference_Titel :
Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on
Conference_Location :
Paris
Print_ISBN :
978-1-4244-5308-5
Electronic_ISBN :
978-1-4244-5309-2
DOI :
10.1109/ISCAS.2010.5537949
