Title :
A low phase noise 2.0 V 900 MHz CMOS voltage controlled ring oscillator
Author :
Badillo, Dean A. ; Kiaei, Sayfe
Author_Institution :
Semicond. Product Sector, Motorola Inc., Tempe, AZ, USA
Abstract :
A CMOS voltage controlled ring oscillator with quadrature output is presented. The circuit is designed in a 0.18 μm CMOS process and operates on a 2.0 V supply. The VCO has a tuning range of 650 MHz to 1.04 GHz. At 913 MHz the VCO has a phase noise of -116.55 dBc/Hz at a frequency offset of 600 KHz. The average power consumed at 913 MHz is 18.95 mW.
Keywords :
CMOS integrated circuits; circuit tuning; integrated circuit design; phase noise; voltage-controlled oscillators; 0.18 micron; 18.95 mW; 2 V; 650 MHz to 1.04 GHz; CMOS process; CMOS voltage controlled ring oscillator; VCO; circuit designing; low phase noise; quadrature output; tuning range; Circuit simulation; Coupling circuits; Frequency; Inverters; Negative feedback; Negative feedback loops; Phase noise; Ring oscillators; Voltage control; Voltage-controlled oscillators;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1329058
