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A 1.8 GHz LC VCO with 1.3 GHz tuning range and mixed-signal amplitude calibration

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3 Author(s)
Berny, A.D. ; Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA ; Niknejad, A.M. ; Meyer, R.G.

A 1.8GHz LC VCO designed in a 0.18 μm CMOS process achieves a very wide tuning range of 73% and measured phase noise of -123.5dBc/Hz at a 600kHz offset from a 1.8GHz carrier while drawing 3.2mA from a 1.5V supply. A novel amplitude calibration technique used to stabilize performance across the wide band of operation does not degrade the VCO phase noise and consumes negligible power and area.

Published in:

VLSI Circuits, 2004. Digest of Technical Papers. 2004 Symposium on

Date of Conference:

17-19 June 2004