Title :
A Sub-1 V 1.6 GHz CMOS VCO with 29% Tuning Range
Author :
Cheng, Wang-Chi ; Chan, Cheong-Fat ; Pun, Kong-Pang ; Choy, Chiu-Sing
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong
Abstract :
This paper presents the design and measurement results of a sub-1 V, wide-tuning range, monolithic voltage-controlled oscillator (VCO). The LC-based VCO can operate at a supply voltage as low as 0.8 V. The top-biased PMOS, with capacitor connected in parallel, is used in order to decrease the noise contribution in the oscillated frequency even at a low voltage supply. Moreover, an accumulation MOS varactor (Andreani, 2000) is used to give a wide tuning range of 29%. With a 1 V supply, the 1.6 GHz A-MOS VCO consumes 5.5 mW with a measured phase noise of -119.59 dBc/Hz @ 600 kHz offset
Keywords :
CMOS integrated circuits; UHF oscillators; phase noise; varactors; voltage-controlled oscillators; 1 V; 1.6 GHz; 5.5 mW; A-MOS VCO; CMOS VCO; PMOS; accumulation MOS varactor; monolithic voltage-controlled oscillator; phase noise; voltage controlled oscillators; CMOS technology; Circuit synthesis; Frequency; Inductors; Low voltage; MOS capacitors; Phase noise; Tuning; Varactors; Voltage-controlled oscillators;
Conference_Titel :
European Microwave Integrated Circuits Conference, 2006. The 1st
Conference_Location :
Manchester
Print_ISBN :
2-9600551-8-7
DOI :
10.1109/EMICC.2006.282777
