Title :
A 1.8-GHz monolithic CMOS VCO tuned by an inductive varactor
Author :
Andreani, Pietro
Author_Institution :
Dept. of Appl. Electron., Lund Univ.
Abstract :
A 1.8-GHz CMOS VCO is presented, employing a monolithic transformer as an inductance with voltage-controlled value. The design was implemented in a standard digital 0.6 μm, 2-metal CMOS process and exhibits a 10% tuning range with a 2.7 V supply voltage and a 9 mA supply current. Phase noise measurements show a worst-case phase noise of about -112 dBc/Hz at 3 MHz offset from the carrier
Keywords :
CMOS analogue integrated circuits; UHF integrated circuits; UHF oscillators; circuit tuning; inductors; integrated circuit noise; phase noise; varactors; voltage-controlled oscillators; 0.6 micron; 1.8 GHz; 2.7 V; 9 mA; CMOS VCO; inductive varactor tuning; monolithic transformer; phase noise; voltage-controlled inductor; CMOS process; Diodes; Inductance; Inductors; Phase noise; Spirals; Tuning; Varactors; Voltage control; Voltage-controlled oscillators;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.922337
