Title :
1-bit sigma delta analog to digital converter for multistandard GSM/UMTS radio receiver
Author :
Fathat, Fethi ; Reba, Chiheb ; Ghazel, Add ; Loumeau, Patrick
Author_Institution :
MEDIATRON Laboratory, SUP´´COM, Tunis, Tunisia
Abstract :
This paper deals with specification and design methodology of analog to digital converter (ADC) stage for high dynamic range wide band multi-standard radio receiver. To respect high resolution requirements a sigma delta (ΣΔ) modulator based ADC is proposed. A high dynamic range low complexity 1-bit sigma delta modulator is designed to guarantee high linearity for GSM/UMTS signals. Hence, a stable 3rd order 1-bit low-pass ΣΔ modulator is defined. Simulation results show more than 90 dB dynamic ranges for GSM and 60 dB for UMTS.
Keywords :
3G mobile communication; cellular radio; convertors; radio receivers; sigma-delta modulation; 1-bit sigma delta analog to digital converter; ADC; high dynamic range wide band radio receiver; high resolution requirements; linearity; multistandard GSM/UMTS radio receiver; stable third order 1-bit low-pass modulator; 3G mobile communication; Analog-digital conversion; Delta modulation; Delta-sigma modulation; Design methodology; Dynamic range; GSM; Receivers; Signal resolution; Wideband;
Conference_Titel :
Industrial Technology, 2004. IEEE ICIT '04. 2004 IEEE International Conference on
Print_ISBN :
0-7803-8662-0
DOI :
10.1109/ICIT.2004.1490301
