A First Dual-Mode RF Fully Digitally Controlled Oscillator in 0.13μm CMOS

Author

Pittorino, Tindaro ; Chen, Yangjian ; Neubauer, Volker ; Vollenbruch, Ulrich ; Mayer, Thomas ; Maurer, Linus

Author_Institution

Johannes Kepler Univ., Linz

fYear

2006

fDate

10-15 Sept. 2006

Firstpage

79

Lastpage

82

Abstract

The first CMOS based fully digitally controlled oscillator suitable for GSM/EDGE and UMTS transmitter is presented. Drawing an extremely low current in order to achieve the phase noise performance sufficient for both communication systems it is highly suitable for terminal applications. A coarse tuning range from 3.25 to 4.25 GHz is achieved by a combination of binary weighted and thermometer coded switchable capacitors which allow a maximum frequency step of 250 KHz. The low current consumption and the excellent phase noise performances achieved make this topology attractive for multi mode systems. A complete implementation in 0.13 μm CMOS technology is here presented

Keywords

3G mobile communication; CMOS analogue integrated circuits; UHF oscillators; cellular radio; phase noise; radio transmitters; 0.13 micron; 3.25 to 4.25 GHz; CMOS technology; EDGE transmitter; GSM transmitter; RF fully digitally controlled oscillator; UMTS transmitter; coarse tuning; dual-mode oscillator; low current consumption; multimode systems; phase noise performance; switchable capacitors; 3G mobile communication; CMOS technology; Communication system control; Digital control; GSM; Oscillators; Phase noise; Radio frequency; Transmitters; Tuning; CMOS analog integrated circuits; Phase noise; oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2006. 36th European

Conference_Location

Manchester

Print_ISBN

2-9600551-6-0

Type

conf

DOI

10.1109/EUMC.2006.281204

Filename

4057751