Oregon State University



Event Details

MS Final Examination – Chao Ma

Thursday, September 13, 2012 1:00 PM - 3:00 PM

Energy-Efficient Clock Generation for Communication and Computing Systems Using Injection Locking
The design of high-performance, high-speed clock generation and distribution becomes challenging in terms of phase noise, jitter and power consumption, due to the fast development of communication and computing systems. Injection locking is a promising clocking technique since it can significantly improve the energy efficiency, suppress the phase noise of the ring oscillator, enable a fast start-up and conveniently generate multiple time-interleaved phases.

A quasi-linear model of injection-locked ring oscillator (ILRO) is utilized to mathematically formulate the frequency and time domain characteristics of the system, as well as the phase noise shaping and jitter tracking behavior.

A forwarded-clock synchronization based on injection locking is designed for a 10 Gb/s photonic interconnect according to the specific features of optical links. A single clock recovery can be used for the all the four channels, resulting in a large amount of power and area saving. The applications of sub-harmonic and super-harmonic injection locking in wireless communications for frequency multiplying and division are also discussed.

Major Advisor: Patrick Chiang
Committee: Gabor Temes
Committee: Huaping Liu
GCR: Merrick Haller 

Kelley Engineering Center (campus map)
Shannon Thompson
1 541 737 3617
shannon.thompson at oregonstate.edu
Sch Elect Engr/Comp Sci
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