Title :
Differential Cross-Coupled CMOS VCOs with Resistive and Inductive Tail Biasing
Author :
Gagliolo, Sergio ; Pruzzo, Giacomo ; Caviglia, Daniele D.
Author_Institution :
Univ. of Genoa, Genoa
Abstract :
Todays Wireless Communication Systems need very high performance VCOs. In many cases, phase noise levels better than -100 dBc/Hz@100 kHz have to be reached with a power consumption lower than 10 mW. This work presents a 1.8 GHz CMOS VCO with a phase noise of -113 dBc/Hz@100 kHz, where a bias resistor avoids the MOS active current source and its related noise, while a tail inductor allows truly differential operation.
Keywords :
CMOS integrated circuits; UHF integrated circuits; UHF oscillators; low-power electronics; phase noise; radiocommunication; voltage-controlled oscillators; CMOS; MOS active current source; VCO; frequency 1.8 GHz; inductive tail biasing; phase noise levels; power consumption; resistive tail biasing; wireless communication systems; Circuit noise; Energy consumption; Frequency; Inductors; Mirrors; Phase noise; Resistors; Tail; Voltage; Voltage-controlled oscillators;
Conference_Titel :
Electronics, Circuits and Systems, 2006. ICECS '06. 13th IEEE International Conference on
Conference_Location :
Nice
Print_ISBN :
1-4244-0395-2
Electronic_ISBN :
1-4244-0395-2
DOI :
10.1109/ICECS.2006.379793
