Title :
Quadrature VCOs Based on Coupled PLLs
Author :
Bevilacqua, Andrea ; Sandner, Christoph ; Gerosa, Andrea ; Neviani, Andrea
Author_Institution :
Dip. di Ing. dell´´Informazione, Universita di Padova
Abstract :
This work proposed to use a two-element array of coupled PLLs to generate quadrature signals. The main advantage of this technique is that phase noise performance and quadrature accuracy do not trade-off. A dual-mode quadrature VCO designed in a digital 0.13 mum CMOS technology is used as test vehicle to verify the viability of the proposed concept.
Keywords :
CMOS digital integrated circuits; phase locked loops; voltage-controlled oscillators; 0.13 micron; coupled PLL; digital CMOS technology; dual-mode quadrature VCO; quadrature signal generation; CMOS technology; Detectors; Filters; Frequency; Injection-locked oscillators; Phase detection; Phase locked loops; Phase noise; Signal generators; Voltage-controlled oscillators;
Conference_Titel :
Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on
Conference_Location :
New Orleans, LA
Print_ISBN :
1-4244-0920-9
Electronic_ISBN :
1-4244-0921-7
DOI :
10.1109/ISCAS.2007.378596
