منابع مشابه
Jitter and Phase Noise in Ring Oscillators
A companion analysis of clock jitter and phase noise of single-ended and differential ring oscillators is presented. The impulse sensitivity functions are used to derive expressions for the jitter and phase noise of ring oscillators. The effect of the number of stages, power dissipation, frequency of oscillation, and shortchannel effects on the jitter and phase noise of ring oscillators is anal...
متن کاملJitter in Ring Oscillators
Jitter in ring oscillators is theoretically described, and predictions are experimentally verified. A design procedure is developed in the context of time domain measures of oscillator jitter in a phase-locked loop (PLL). A major contribution is the identification of a design figure of merit , which is independent of the number of stages in the ring. This figure of merit is used to relate funda...
متن کاملComparison and analysis of phase noise in ring oscillators
Voltage-controlled oscillators are widely used circuit blocks, particularly in phase-locked loops. As CMOS is the technology of choice for many applications, CMOS oscillators with low phase noise and timing jitter are highly desired. CMOS ring oscillators with five different delay cell topologies have been designed, fabricated and evaluated for phase noise performance. Our results show that rin...
متن کاملPhase Noise and Jitter
Phase noise and jitter are two related quantities associated with a noisy oscillator. Phase noise is a frequency-domain view of the noise spectrum around the oscillator signal, while jitter is a timedomain measure of the timing accuracy of the oscillator period. This paper discusses the relationship between phase noise and jitter in free-running oscillators. The reader is referred to three othe...
متن کاملPhase Noise in Multi-Gigahertz CMOS Ring Oscillators
An analysis of the phase noise in differential and singleended ring oscillators using a time-variant model is presented. An expression for the RMS value of the impulse sensitivity function (ISF) is derived. A closed-form equation for phase noise of ring oscillators is calculated and a lower limit on the phase noise of ring oscillators is shown. Phase noise measurements of oscillators running up...
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ژورنال
عنوان ژورنال: IEEE Journal of Solid-State Circuits
سال: 1999
ISSN: 0018-9200
DOI: 10.1109/4.766813