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Título : An adpative ΣΔ modulator for multi-standard hand-held wireless devices
Autor : Morgado, Alonso; Río, Rocío del; Rosa, José M. de la
Palabras clave : Adaptive Circuits
Sigma-Delta Modulators
Multi-Standard wireless devices
Fecha de publicación : nov-2007
Editor: Institute of Electrical and Electronics Engineers
Citación : Proceeding of the Asian Solid-State Circuit Conference (2007)
Resumen: This paper describes the design and experimental characterization of a 130-nm CMOS cascade ΣΔ modulator intended for multi-standard wireless telecom systems. Both architectural- and circuital-level reconfiguration strategies are incorporated in the chip in order to adapt its performance to different standard specifications with optimized power dissipation. Measurements show a correct operation for GSM/Bluetooth/WCDMA standards, featuring a dynamic range of 86.7/81.0/63.3dB and a peak signal-to-(noise+distortion) ratio of 74.0/68.4/52.8dB within 200kHz/1MHz/4MHz, respectively. The power consumption is 25.2/25.0/44.5mW, of which 11.0/10.5/24.8 are due to the analog part of the circuit.
URI : http://hdl.handle.net/10261/3764
Referencias: 1-4244-1360-5/07
Aparece en las colecciones: (IMS-CNM) Comunicaciones congresos
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