Title :
A 1.8 GHz CMOS VCO with reduced phase noise
Author :
Andreani, P. ; Sjoland, H.
Author_Institution :
Dept. of Appl. Electron., Lund Univ., Sweden
Abstract :
A 2 V, 6 mA, 15% tuning range, 1.8 GHz VCO implemented in a standard 0.35 /spl mu/m CMOS process is presented. The phase noise of the VCO has been greatly reduced by means of on-chip filters and one off-chip low frequency inductor. The phase noise measured at 3 MHz offset from the carrier is between -141.5 dBc/Hz and -138.5 dBc/Hz over the whole tuning range.
Keywords :
CMOS analogue integrated circuits; UHF integrated circuits; UHF oscillators; circuit tuning; inductors; phase noise; voltage-controlled oscillators; 0.35 micron; 1.8 GHz; 2 V; 6 mA; CMOS; VCO; off-chip low frequency inductor; on-chip filters; phase noise; tuning; Frequency; Inductors; Low pass filters; Low-frequency noise; MOS devices; Phase noise; Power supplies; Switches; Tail; Voltage-controlled oscillators;
Conference_Titel :
VLSI Circuits, 2001. Digest of Technical Papers. 2001 Symposium on
Conference_Location :
Kyoto, Japan
Print_ISBN :
4-89114-014-3
DOI :
10.1109/VLSIC.2001.934213
