Title :
Strong injection locking of low-Q LC oscillators
Author :
Mansuri, Mozhgan ; Mahony, Frank O. ; Balamurugan, Ganesh ; Jaussi, James ; Kennedy, Joseph ; Shekhar, Sudip ; Mooney, Randy ; Casper, Bryan
Author_Institution :
Intel Corp., Hillsboro, OR
Abstract :
This paper presents a new equation for injection-locked LC oscillators (ILOs) based on a series RL element in parallel with C. Unlike previous ILO equations based on a parallel RLC tank approximation, the proposed equation is valid for any tank Q and injection strength (K). The model reveals several important properties of low-Q and/or high-K ILOs such as asymmetry in the lock range, reduced phase shift, and higher bandwidth. Experimental results validate the model.
Keywords :
approximation theory; injection locked oscillators; phase shifters; injection locking; low-Q LC oscillators; parallel RLC tank approximation; reduced phase shift; series RL element; Clocks; Equations; Frequency; High K dielectric materials; High-K gate dielectrics; Inductors; Injection-locked oscillators; Microprocessors; Phase locked loops; RLC circuits;
Conference_Titel :
Custom Integrated Circuits Conference, 2008. CICC 2008. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-2018-6
Electronic_ISBN :
978-1-4244-2019-3
DOI :
10.1109/CICC.2008.4672182
