Title :
A novel ΣΔ modulator design applied to dual GSM/WCDMA receiver
Author :
Ferzli, Rony ; Al-Alaoui, Mohamad Adnan
Author_Institution :
Electr. & Comput. Dept., American Univ. of Beirut, Lebanon
Abstract :
A novel ΣΔ modulator is presented with lower power consumption and higher Signal to Noise Ratio (SNR) than the conventional modulator for a given order. The novel modulator is applied in analog-to-digital converters of RF receivers. The same modulator architecture is used for GSM and WCDMA receivers differing only in the Oversampling Ratio (OSR). The modulator was designed using switched capacitor circuits and could be implemented in VLSI.
Keywords :
VLSI; cellular radio; code division multiple access; radio receivers; sigma-delta modulation; switched capacitor networks; GSM receivers; GSM/WCDMA receiver; OSR; RF receivers; VLSI; WCDMA receivers; analog-to-digital converters; lower power consumption; modulator architecture; oversampling ratio; sigma-delta modulator; switched capacitor circuits; Bandwidth; Baseband; Delta modulation; Delta-sigma modulation; Dynamic range; GSM; Multiaccess communication; Noise shaping; Radio frequency; Signal to noise ratio;
Conference_Titel :
Microelectronics, The 14th International Conference on 2002 - ICM
Print_ISBN :
0-7803-7573-4
DOI :
10.1109/ICM-02.2002.1161532
