DocumentCode
727253
Title
A quad-mode DCO for multi-standard communication application
Author
Bo Jiang ; Tian Xia
Author_Institution
Sch. of Eng., Univ. of Vermont, Burlington, VT, USA
fYear
2015
fDate
24-27 May 2015
Firstpage
2229
Lastpage
2232
Abstract
This paper proposes a quad-mode digitally controlled oscillator (DCO) for multi-band frequency synthesizer application. The DCO consists of an LC-tank using three inductors and two varactor arrays. Four different inductances and capacitances are obtained by tuning corresponding varactor values, which result in four resonances to increase the frequency tuning range. The simulation results show that the proposed DCO output frequency covers the frequency ranges from 1.5GHz to 2.5GHz and from 4.3GHz to 6.2GHz, which are suitable for multistandard applications.
Keywords
UHF oscillators; frequency synthesizers; inductors; microwave oscillators; varactors; LC-tank; digitally controlled oscillator; frequency 1.5 GHz to 2.5 GHz; frequency 4.3 GHz to 6.2 GHz; multiband frequency synthesizer; multistandard communication; quad-mode DCO; three inductors; two varactor arrays; CMOS integrated circuits; Inductors; Phase noise; Resonant frequency; Switches; Tuning; Varactors; DCO; multi-standard; phase locked-loop; phase noise; tuning range;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems (ISCAS), 2015 IEEE International Symposium on
Conference_Location
Lisbon
Type
conf
DOI
10.1109/ISCAS.2015.7169125
Filename
7169125
Link To Document