Title :
A very-wide bandwidth digital VCO implemented in GaAs HBTs using frequency multiplication and division
Author :
Campbell, P.M. ; Greub, H.J. ; Garg, A. ; Steidl, Stefan ; Maier, C. ; Carlough, S. ; McDonald, J.F.
Author_Institution :
Center for Integrated Electron., Rensselaer Polytech. Inst., Troy, NY, USA
fDate :
Oct. 29 1995-Nov. 1 1995
Abstract :
A digital high-speed voltage-controlled oscillator (VCO) has been developed which uses frequency-multiplication and division to attain a wide frequency range of 0.5-13.66 GHz. The circuit is implemented in differential current-mode logic using GaAs-AlGaAs heterojunction bipolar transistors (HBTs). This paper discusses top-level system design as well as the design of several key components.
Keywords :
III-V semiconductors; aluminium compounds; bipolar digital integrated circuits; current-mode logic; frequency dividers; frequency multipliers; gallium arsenide; heterojunction bipolar transistors; microwave oscillators; voltage-controlled oscillators; 0.5 to 13.66 GHz; CML; GaAs-AlGaAs; HBTs; broadband oscillator; differential current-mode logic; digital VCO; frequency division; frequency multiplication; high-speed IC; top-level system design; very-wide bandwidth VCO; voltage-controlled oscillator; wideband operation; Bandwidth; Circuit testing; Delay; Frequency conversion; Gallium arsenide; Heterojunction bipolar transistors; Integrated circuit interconnections; Logic circuits; Parasitic capacitance; Voltage-controlled oscillators;
Conference_Titel :
Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 1995. Technical Digest 1995., 17th Annual IEEE
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-2966-X
DOI :
10.1109/GAAS.1995.529018
