Title :
A Triple-Mode Reconfigurable Sigma-Delta Modulator for Multi-Standard Wireless Applications
Author :
Morgado, Alonso ; Del Río, Rocío ; De la Rosa, José M.
Author_Institution :
Inst. de Microelectron. de Sevilla, IMSE-CNM (CSIC/Univ. de Sevilla), Sevilla
Abstract :
This paper presents the implementation and experimental characterization of a reconfigurable SigmaDelta modulator intended for multi-mode wireless receivers that is capable to perform the analog-to-digital conversion for GSM, Bluetooth, and UMTS standards. The SigmaDelta modulator reconfigures its cascade topology and building blocks in order to adapt the performance to the diverse standard specifications with optimized power consumption. The prototype has been implemented in a 130-nm CMOS technology and features dynamic ranges of 86.7/81.0/63.3dB and peak signal-to-(noise+distortion) ratios of 74.0/68.4/52.8dB at 400ksps/2Msps/8Msps, respectively. The modulator power consumption is 25.2/25.0/44.5mW, of which 11.0/10.5/ 24.8 m W are dissipated in the analog circuitry.
Keywords :
CMOS analogue integrated circuits; low-power electronics; radio receivers; sigma-delta modulation; Bluetooth; CMOS technology; GSM; UMTS standards; analog circuitry; analog-to-digital conversion; cascade topology; modulator power consumption; multistandard wireless receivers; power 10.5 mW; power 11.0 mW; power 24.8 mW; power 25.0 mW; power 25.2 mW; power 44.5 mW; size 130 nm; triple-mode reconfigurable sigma-delta modulator; 3G mobile communication; Analog-digital conversion; Bluetooth; CMOS technology; Delta-sigma modulation; Dynamic range; Energy consumption; GSM; Prototypes; Topology;
Conference_Titel :
Design, Automation and Test in Europe, 2008. DATE '08
Conference_Location :
Munich
Print_ISBN :
978-3-9810801-3-1
Electronic_ISBN :
978-3-9810801-4-8
DOI :
10.1109/DATE.2008.4484782
