Title :
A 1.8 GHz highly-tunable low-phase-noise CMOS VCO
Author :
Muer, Bram De ; Itoh, Nobuyulu ; Borremans, Marc ; Steyaert, Michiel
Author_Institution :
Dept. ESAT-MICAS, Katholieke Univ., Leuven, Belgium
Abstract :
A 1.8 GHz fully integrated Voltage Controlled Oscillator (VCO) is presented. Through inductor optimization, the phase noise is as low as -127.5 dBc/Hz at 600 kHz and -142.5 dBc/Hz at 3 MHz. A 28% wide tuning range is achieved with a 1.8 V power supply. The VCO exceeds the DCS-1800 phase noise requirements with at least 4 dB over the whole DCS-1800 frequency band. The VCO is implemented in a 2-metal layer, 0.25 μm standard CMOS technology, using no external components nor additional processing steps
Keywords :
CMOS analogue integrated circuits; UHF integrated circuits; UHF oscillators; circuit tuning; integrated circuit design; integrated circuit noise; phase noise; variable-frequency oscillators; voltage-controlled oscillators; 0.25 micron; 1.8 GHz; 1.8 V; 2-metal layer standard CMOS technology; DCS-1800 phase noise requirements; fully integrated VCO; highly-tunable VCO; low-phase-noise CMOS VCO; spiral inductor optimization; wide tuning range; CMOS process; CMOS technology; Costs; Inductors; Low voltage; Phase noise; Power supplies; Radio frequency; Tuning; Voltage-controlled oscillators;
Conference_Titel :
Custom Integrated Circuits Conference, 2000. CICC. Proceedings of the IEEE 2000
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-5809-0
DOI :
10.1109/CICC.2000.852736
