Title :
Fully integrated low phase-noise PLLs using closed-loop voltage-to-frequency converter architectures
Author :
Hafez, Amr N. ; Elmasry, M.I.
Author_Institution :
VLSI Res. Group, Waterloo Univ., Ont., Canada
Abstract :
A VCO is configured in a wide-bandwidth voltage-locked feedback loop that suppresses the VCO phase-noise. By configuring this architecture in a PLL, low phase-noise frequency synthesis is possible using integrated VCOs. The proposed architecture is designed in a 0.8 μm BiCMOS technology and achieves up to 20 dB reduction in the integrated VCO phase-noise
Keywords :
BiCMOS analogue integrated circuits; closed loop systems; feedback oscillators; frequency synthesizers; integrated circuit noise; phase locked loops; phase noise; voltage-controlled oscillators; voltage-frequency convertors; 0.8 micron; BiCMOS integrated circuit; closed-loop voltage-to-frequency converter; frequency synthesis; phase locked loop; phase noise; voltage controlled oscillator; wide-band voltage-locked feedback loop; Bandwidth; Feedback loop; Filters; Frequency conversion; Phase detection; Phase locked loops; Phase noise; Very large scale integration; Voltage; Voltage-controlled oscillators;
Conference_Titel :
Custom Integrated Circuits, 1999. Proceedings of the IEEE 1999
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-5443-5
DOI :
10.1109/CICC.1999.777365
