Title :
3.6 GHz VCOs for multi-band GSM transceivers
Author :
Kucera, Jakub ; Klepser, Bernd-Ulrich
Author_Institution :
Infineon Technologies, Munich, Germany
Abstract :
Two integrated 3.6 GHz VCO´s for multi-band GSM direct-conversion transceivers fabricated in a 0.25 µm CMOS technology are presented. Excellent phase-noise performance is achieved by minimizing noise generation in the active circuit and by suppressing noise injection from the bias circuit. Using switched-capacitors in the resonator a large effective tuning range is obtained. Measured phase-noise as low as -145 dBc/Hz at 3 MHz frequency offset and low power consumption compares favorably with previous published integrated VCO´s.
Conference_Titel :
Solid-State Circuits Conference, 2001. ESSCIRC 2001. Proceedings of the 27th European
Conference_Location :
Villach, Austria