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Precise 90º quadrature current-controlled oscillator tunable between 50-130 MHz

 

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Opened Access Precise 90º quadrature current-controlled oscillator tunable between 50-130 MHz
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Author: Linares Barranco, Bernabé
Serrano Gotarredona, María Teresa
Ramos Martos, J.
Ceballos Cáceres, Joaquín Francisco
Mora Gutiérrez, José Miguel
Linares Barranco, Alejandro
Department: Universidad de Sevilla. Departamento de Arquitectura y Tecnología de Computadores
Date: 2003
Published in: Electronics Letters, 39 (11), 823-825.
Document type: Article
Abstract: A VLSI continuous time sinusoidal OTA-C quadrature oscillator fabricated in a standard double-poly 0.8 µm CMOS process is presented. The oscillator is tunable in the frequency range from 50–130 MHz. The two phases produced by the oscillator show an extremely low phase difference error (less than 2° over the whole frequency range). A novel current mode amplitude control scheme is developed that allows for very small amplitudes. Experimental results are provided.
Cite: Linares Barranco, B., Serrano Gotarredona, M.T., Ramos Martos, J., Ceballos Cáceres, J.F., Mora Gutiérrez, J.M. y Linares Barranco, A. (2003). Precise 90º quadrature current-controlled oscillator tunable between 50-130 MHz. Electronics Letters, 39 (11), 823-825.
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URI: https://hdl.handle.net/11441/76232

DOI: 10.1049/el:20030558

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