Title :
A UMTS-complaint fully digitally controlled oscillator with 100Mhz fine-tuning range in 0.13/spl mu/m CMOS
Author :
Pittorino, T. ; Chen, Yuanfeng ; Neubauer, V. ; Mayer, T. ; Maurer, Linus
Author_Institution :
Linz Univ.
Abstract :
A 0.13mum CMOS fully digitally controlled oscillator is presented. Running at 2GHz, it draws 3.2mA from a 2.5V supply and has a phase noise of -118dBc/Hz at 1MHz offset, as required for UMTS oscillators. A tuning range from 3.45 to 4.45GHz is achieved by using binary-weighted and thermometer-coded switchable capacitors, which allow a maximum frequency step of 200kHz
Keywords :
3G mobile communication; CMOS integrated circuits; MMIC oscillators; circuit tuning; phase noise; switched capacitor networks; 0.13 micron; 100 MHz; 2 GHz; 2.5 V; 200 kHz; 3.2 mA; 3.45 to 4.45 GHz; CMOS fully digitally controlled oscillator; UMTS; phase noise; thermometer-coded switchable capacitors; tuning range; 3G mobile communication; CMOS digital integrated circuits; Digital control; Energy consumption; MIM capacitors; Oscillators; Phase locked loops; Phase noise; Tuning; Varactors;
Conference_Titel :
Solid-State Circuits Conference, 2006. ISSCC 2006. Digest of Technical Papers. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0079-1
DOI :
10.1109/ISSCC.2006.1696116
