Title :
On the Dynamics of Regenerative Frequency Dividers
Author :
Safarian, Aminghasem ; Anand, Seema ; Heydari, Payam
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., California Univ., Irvine, CA
Abstract :
A comprehensive analytical study of regenerative frequency dividers (RFD) is presented. The study includes two fundamental modes of operation in RFDs, namely locked (or stable) and quasi-locked modes, and the study also covers the transition from free-running oscillation to quasi-locked, and ultimately to locked operation mode. Differential equations characterizing the RFD behavior for both operation modes as well as the transition between the two are derived. An RFD circuit for Bluetooth applications was designed and fabricated in a 65-nm CMOS process with a supply voltage of 1.2 V. Measurement results of the RFD prototype verify the accuracy of the proposed analytical models
Keywords :
Bluetooth; CMOS integrated circuits; differential equations; frequency dividers; 1.2 V; 65 nm; Bluetooth; CMOS process; differential equations; quasi-locked operation modes; regenerative frequency dividers; Bluetooth; CMOS process; Circuits; Differential equations; Frequency conversion; Laser mode locking; Oscillators; Power harmonic filters; Radio frequency; Steady-state; Injection-locked frequency divider (ILFD); nanoscale CMOS; oscillator; quasi-locked and locked modes; regenerative (RFD);
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
DOI :
10.1109/TCSII.2006.886053
