Title :
A 1.8 GHz LC VCO with 1.3 GHz tuning range and mixed-signal amplitude calibration
Author :
Berny, A.D. ; Niknejad, Ali M. ; Meyer, Robert G.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA
Abstract :
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.
Keywords :
CMOS integrated circuits; VLSI; microwave integrated circuits; phase noise; radiofrequency oscillators; voltage-controlled oscillators; 0.18 micron; 1.3 GHz tuning range; 1.5 V; 1.8 GHz; 1.8 GHz LC VCO; 3.2 mA; 600 kHz; amplitude calibration technique; mixed-signal amplitude calibration; Calibration; Frequency; MIM capacitors; MOS devices; Phase noise; Switches; Tuning; Varactors; Voltage-controlled oscillators; Wideband;
Conference_Titel :
VLSI Circuits, 2004. Digest of Technical Papers. 2004 Symposium on
Print_ISBN :
0-7803-8287-0
DOI :
10.1109/VLSIC.2004.1346500
