A CMOS direct injection-locked oscillator topology as high-frequency low-power frequency divider

Top Cited Papers

28 June 2004

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Solid-State Circuits

Vol. 39 (7) , 1170-1174
https://doi.org/10.1109/jssc.2004.829937

Abstract

An injection-locked oscillator topology is presented, based on MOS switches directly coupled to the LC tank of well-known LC oscillators. The direct injection-locking scheme features wide locking ranges, a very low input capacitance, and highest frequency capability. The direct locking and the tradeoff between power consumption and tank quality factor is verified through three test circuits in 0.13-/spl mu/m standard CMOS, aiming at input frequency ranges of 50, 40, and 15 GHz. The 40- and 50-GHz dividers consume 3 mW with locking ranges of 80 MHz and 1.5 GHz. The 15-GHz divider consumes 23 mW and features a locking range of 2.8 GHz.

Keywords

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