Title :
Jitter and phase noise in ring oscillators
Author :
Hajimiri, Ali ; Limotyrakis, Sotirios ; Lee, Thomas H.
Author_Institution :
California Inst. of Technol., Pasadena, CA, USA
fDate :
6/1/1999 12:00:00 AM
Abstract :
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 short-channel effects on the jitter and phase noise of ring oscillators is analyzed. Jitter and phase noise due to substrate and supply noise is discussed, and the effect of symmetry on the upconversion of 1/f noise is demonstrated. Several new design insights are given for low jitter/phase-noise design. Good agreement between theory and measurements is observed
Keywords :
1/f noise; circuit stability; integrated circuit design; integrated circuit noise; phase noise; timing jitter; voltage-controlled oscillators; 1/f noise upconversion; VCO; clock jitter; differential ring oscillators; low jitter/phase-noise design; oscillation frequency; phase noise; power dissipation; ring oscillators; short-channel effects; single-ended oscillators; substrate noise; supply noise; Clocks; Fluctuations; Phase noise; Power dissipation; Radio frequency; Ring oscillators; Time domain analysis; Timing jitter; Voltage; Voltage-controlled oscillators;
Journal_Title :
Solid-State Circuits, IEEE Journal of
