Title :
Multi-band VCO PLL with continuously maintained optimum VCO control voltage
Author :
Young-Seok Park ; Dae-Hyun Kwon ; Choi, K.-C. ; Woo-Young Choi
Author_Institution :
Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
A new architecture for a multi-band voltage-controlled oscillator (VCO) phase-locked loop (PLL) is presented, which can continuously maintain the optimum VCO sub-band and the VCO control voltage even with severe supply voltage variation. A prototype 2 GHz PLL with the new architecture is successfully demonstrated in 0.13 μm CMOS technology.
Keywords :
CMOS analogue integrated circuits; UHF integrated circuits; UHF oscillators; phase locked loops; voltage-controlled oscillators; CMOS technology; frequency 2 GHz; multiband VCO PLL; optimum control voltage; optimum subband; phase-locked loop; size 0.13 mum; voltage-controlled oscillator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2014.0586
