Results 1 to 10 of about 86,731 (148)

Ring Oscillator Clocks and Margins [PDF]

open access: yes2016 22nd IEEE International Symposium on Asynchronous Circuits and Systems (ASYNC), 2016
How much margin do we have to add to the delay lines of a bundled-data circuit? This paper is an attempt to give a methodical answer to this question, taking into account all sources of variability and the existing EDA machinery for timing analysis and sign-off.
Cortadella, Jordi   +4 more
openaire   +4 more sources

Combined skewed CMOS Ring Oscillator

open access: yesElectrical & Computer Engineering: An International Journal, 2015
A combined skewed ring oscillator by different type of delay stages is presented. This paper aims to drive a high stable and relatively high frequency but still use a full transistor circuit for ring oscillator with combined delay stages and skewed connections.
Sadegh Biabanifard   +2 more
openaire   +2 more sources

Voltage noise analysis with ring oscillator clocks [PDF]

open access: yes, 2017
Voltage noise is the main source of dynamic variability in integrated circuits and a major concern for the design of Power Delivery Networks (PDNs). Ring Oscillators Clocks (ROCs) have been proposed as an alternative to mitigate the negative effects of ...
Cortadella, Jordi   +2 more
core   +1 more source

Reduction of the 1/f Noise Induced Phase Noise in a CMOS Ring Oscillator by Increasing the Amplitude of Oscillation [PDF]

open access: yes, 1998
Spectrum measurement results of a CMOS ring oscillator are presented that show a 10 dB decrease in 1/f noise induced phase noise at a 2 dB increase in carrier power.
Gierkink, Sander L.J.   +5 more
core   +3 more sources

Alternate oscillations in semiconductor ring lasers [PDF]

open access: yesOptics Letters, 2002
We report on fabrication and characterization of single-longitudinal- and transverse-mode semiconductor ring lasers. A bifurcation from bidirectional stable operation to a regime with alternate oscillations of the counterpropagating modes was observed experimentally and is theoretically explained through a two-mode model. Analytical expressions for the
Sorel, Marc   +6 more
openaire   +3 more sources

2.49 GHz low phase-noise optoelectronic oscillator using 1.55μm VCSEL for avionics and aerospace applications [PDF]

open access: yes, 2008
We present here a 1.55 μm single mode Vertical-Cavity Surface-Emitting Laser (VCSEL) based low phase-noise ring optoelectronic (OEO) oscillator operating at 2.49 GHz for aerospace, avionics and embedded systems applications.
Bacou, Alexandre   +4 more
core   +1 more source

SPIN OSCILLATIONS IN STORAGE RINGS [PDF]

open access: yesSpin 2004, 2005
The dependence of the particle rotation frequency on the particle orbit perturbations is found. The exact equation of spin motion in the cylindrical coordinate system is derived. The calculated formula for the frequency of g-2 precession is in the best agreement with previous results.
openaire   +3 more sources

Spatial and temporal filtering of a 10-W Nd:YAG laser with a Fabry-Perot ring-cavity premode cleaner [PDF]

open access: yes, 1998
We report on the use of a fixed-spacer Fabry–Perot ring cavity to filter spatially and temporally a 10-W laser-diode-pumped Nd:YAG master-oscillator power amplifier.
Byer, R. L.   +6 more
core   +1 more source

Rhythmic ring–ring stacking drives the circadian oscillator clockwise [PDF]

open access: yesProceedings of the National Academy of Sciences, 2012
The oscillator of the circadian clock of cyanobacteria is composed of three proteins, KaiA, KaiB, and KaiC, which together generate a self-sustained ∼24-h rhythm of phosphorylation of KaiC. The mechanism propelling this oscillator has remained elusive, however. We show that stacking interactions between the CI and CII rings of KaiC drive the transition
Yong-Gang, Chang   +3 more
openaire   +2 more sources

Path Integrals and Their Application to Dissipative Quantum Systems [PDF]

open access: yes, 2002
Introduction Path Integrals - Introduction - Propagator - Free Particle - Path Integral Representation of Quantum Mechanics - Particle on a Ring - Particle in a Box - Driven Harmonic Oscillator - Semiclassical Approximation ...
A. Auerbach   +31 more
core   +2 more sources

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