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Experimental Characterization of IdleTones in Second-Order Bandpass ΣΔ Modulators

 

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Opened Access Experimental Characterization of IdleTones in Second-Order Bandpass ΣΔ Modulators
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Author: Rosa Utrera, José Manuel de la
Pérez Verdú, Belén
Medeiro Hidalgo, Fernando
Río Fernández, Rocío del
Rodríguez Vázquez, Ángel Benito
Department: Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo
Date: 2000
Document type: Presentation
Abstract: This paper analyses the tonal behaviour of the quantization noise in second-order bandpass ΣΔ modulators. The analysis performed for lowpass modulators is extended to the bandpass case. As a result, closed form expressions for the frequency of idle tones are derived for different cases regarding the signal center frequency position. All these results have been validated by measurements from a silicon prototype using fully differential switched-current circuits implemented in a standard 0.8μm CMOS technology.
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Format: PDF

URI: https://hdl.handle.net/11441/80039

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