Title :
High-performance differential VCO based on Armstrong oscillator topology
Author :
Tchamov, Nikolay T. ; Niemi, Tero ; Mikkola, Niko
Author_Institution :
Telecommun. Lab., Tampere Univ. of Technol., Finland
fDate :
1/1/2001 12:00:00 AM
Abstract :
A symmetric topology based on the classical Armstrong´s oscillator was developed and implemented as a fully monolithic voltage-controlled oscillator using ST Microelectronics´ 0.35-μm BICMOS process (fT =35 GHz). It oscillates at a center frequency of 4.4 GHz, has a tuning range of 1.0 GHz, delivers a single-ended output power of -6.5 dBm, and the minimum current consumption is less than 4 mA from a 2.5-V power supply. The phase noise is -125 dBc/Hz, measured at 3-MHz offset
Keywords :
BiCMOS analogue integrated circuits; MMIC oscillators; circuit tuning; integrated circuit design; phase noise; voltage-controlled oscillators; 0.35 micron; 2.5 V; 4 mA; 4.4 GHz; Armstrong oscillator topology; SHF; ST Microelectronics BICMOS process; high-performance differential VCO; monolithic voltage-controlled oscillator; phase noise; symmetric topology; tuning range; BiCMOS integrated circuits; Frequency; Microelectronics; Noise measurement; Phase noise; Power generation; Power supplies; Topology; Tuning; Voltage-controlled oscillators;
Journal_Title :
Solid-State Circuits, IEEE Journal of
