Title :
A new LC-tank voltage controlled oscillator
Author :
Li, Shao-Hua ; Jang, Sheng-Liang ; Chuang, Yun-Shueh ; Li, Chien-Feng
Author_Institution :
Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei
Abstract :
This paper describes the design of a new monolithic VCO with a single nMOSFET and a single pMOSFET core. The monolithic VCO is designed in standard 0.35mum single-poly, 4-metal CMOS process. The LC tank consists of an inductor and a varactor. The requisite tuning range is obtained by using an nMOS inversion-mode varactor. The oscillator is tunable from 2.26987 to 2.64276 GHz through a MOS varactor input. Tuning range of 16.7% covers the frequency for 2.4 GHz ISM band
Keywords :
CMOS integrated circuits; MOSFET; circuit tuning; inductors; varactors; voltage-controlled oscillators; 0.35 micron; 2.26987 to 2.64276 GHz; 2.4 GHz; 4-metal CMOS process; ISM band; LC-tank; inductors; integrated voltage controlled oscillator; monolithic VCO; nMOSFET; pMOSFET; tuning range; varactors; Inverters; MOS devices; MOSFET circuits; Parasitic capacitance; Phase noise; Radio frequency; Tail; Tuning; Varactors; Voltage-controlled oscillators;
Conference_Titel :
Circuits and Systems, 2004. Proceedings. The 2004 IEEE Asia-Pacific Conference on
Conference_Location :
Tainan
Print_ISBN :
0-7803-8660-4
DOI :
10.1109/APCCAS.2004.1412786
