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Compare the performance of Ring and LC oscillators in terms of phase noise, area, Q factor and application

written 5.9 years ago by hetalgosavi • 1.7k

modified 4.6 years ago by prashantsaini • 0

cmos vlsi design

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written 5.7 years ago by yashbeer ★ 11k

•   modified 5.7 years ago

Distinguish is as follows:

Ring Oscillator	LC Oscillator
Circuit diagram fig. 3 stage ring oscillator	Circuit Diagram fig. LC tunned oscillator
Jitter is more in ring oscillator as compared to LC oscillator	Jitter is less as compared to ring oscillator
Ring oscillator has worst phase noise	Better phase noise performance
Requires smaller layout area compared to LC oscillator	Layout area is more compared to ring oscillator
It has larger tunning range	It has smaller tunning range
Applications: High speed clock synthesizer, VCO, PLL	Applications: Wireless reciever for cellular use, VCO, PLL

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