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A 2.5MHz 55dB Switched-Current BandPass ΣΔ Modulator for AM Signal Conversion

Opened Access A 2.5MHz 55dB Switched-Current BandPass ΣΔ Modulator for AM Signal Conversion
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Autor: Rosa, Jose M. de la
Pérez Verdú, Belén
Medeiro Hidalgo, Fernando
Rodríguez Vázquez, Ángel Benito
Departamento: Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo
Fecha: 1997
Publicado en: A 2.5MHz 55dB Switched-Current BandPass ΣΔ Modulator for AM Signal Conversion. Proc. of the 1997 European Solid-State Cicuits Conference (ESSCIRC’97), pp. 156-159
Tipo de documento: Ponencia
Resumen: We present a Switched-Current (SI) fourth-order bandpass ΣΔ modulator IC prototype. It uses fully-differential circuits in 0.8μm CMOS technology to obtain a Dynamic Range (DR) larger than 55dB at 2.5MHz center frequency with 30kHz bandwidth - in accordance to the requirements of AM digital receivers. The prototype incorporates a single-ended to fully-differential current-mode buffer for testing purposes. The power consumption of the whole prototype (modulator plus buffer) is 60mW from a 5V supply voltage.
Tamaño: 90.81Kb
Formato: PDF

URI: http://hdl.handle.net/11441/33647

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