A single LC tank self-compensated CMOS oscillator with frequency stability of ±100ppm from −40°C to 85°C

Nabil M Sinoussi, A Hamed,M Essam,A H Elkholy,A Hassanein,M Saeed,Ahmed Helmy, A K W Ahmed

Frequency Control Symposium（2012）

引用 7|浏览2

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摘要

This work presents a new all CMOS Self-Compensated Oscillator (SCO) that is highly stable across temperature and is utilized as a reference clock source. The new architecture utilizes an innovative phase shift technique that adjusts the phase of the tank at a specific Temperature Null (TNULL) phase where the frequency deviation across temperature is minimized. The single LC tank architecture used in the new oscillator reduces die area significantly compared to a previously reported dual LC tank architecture. The new oscillator achieves a total frequency stability of ±100ppm across temperature (-40-85°C), supply (3.0-3.6V) and load (0-15pF). CMOS output frequencies from 1-133MHz can be produced with a 2.8ps rms period jitter and 7mA current consumption at 25MHz output.

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关键词

cmos analogue integrated circuits,uhf oscillators,sco,tnull phase,current 7 ma,dual lc tank architecture,frequency 1 mhz to 133 mhz,frequency deviation,frequency stability,innovative phase shift technique,reference clock source,single lc tank self-compensated cmos oscillator,temperature -40 degc to 85 degc,temperature null phase,time 2.8 ps,voltage 3.0 v to 3.6 v,lc oscillator,xo replacement,reference clock,self-compensated oscillator,temperature null,temperature measurement,oscillators,impedance,cmos integrated circuits,thermal stability

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