Title :
A multi-band single-loop PLL frequency synthesizer with dynamically-controlled switched tuning VCO
Author :
Samuel, A.M. ; De Gyvez, José Pineda
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
A phase-locked loop (PLL) frequency synthesizer architecture for multiple-band applications is presented. A dynamically-controlled switched tuning voltage-controlled oscillator (VCO) is used to achieve superior frequency range and phase noise performance over a conventional PLL. Implemented in 1.4 μm CMOS, the PLL has a 111-290 MHz range, phase noise of -92.3 dBc/Hz at a 50 kHz offset, and dissipates 9 mW from a 2.7 V supply
Keywords :
CMOS integrated circuits; circuit tuning; frequency synthesizers; integrated circuit measurement; integrated circuit noise; phase locked loops; phase noise; voltage-controlled oscillators; 1.2 micron; 111 to 290 MHz; 2.7 V; 9 mW; CMOS implementation; PLL; VCO; dynamically-controlled switched tuning VCO; dynamically-controlled switched tuning voltage-controlled oscillator; frequency range; multi-band single-loop PLL frequency synthesizer; multiple-band applications; phase noise; phase noise performance; phase-locked loop frequency synthesizer; power dissipation; Circuit optimization; Control systems; Frequency conversion; Frequency synthesizers; Phase locked loops; Phase noise; Switches; Tuning; Voltage control; Voltage-controlled oscillators;
Conference_Titel :
Circuits and Systems, 2000. Proceedings of the 43rd IEEE Midwest Symposium on
Conference_Location :
Lansing, MI
Print_ISBN :
0-7803-6475-9
DOI :
10.1109/MWSCAS.2000.952881
