DocumentCode
3366104
Title
A Low Power Dual-Mode Sigma-Delta Modulator for GSM/WCDMA Receivers
Author
Lee, Inhee ; Chae, Youngcheol ; Han, Gunhee
Author_Institution
Yonsei Univ., Seoul
fYear
2007
fDate
11-14 Dec. 2007
Firstpage
1151
Lastpage
1154
Abstract
This paper proposes a low power dual-mode sigma- delta (SigmaLambda) modulator for GSM and WCDMA receivers. The proposed modulator satisfies both standards by modifying the transfer function without changing sampling frequency or the loop order. The simulation results show 85 dB dynamic range for a GSM mode and 55 dB for a WCDMA mode. The proposed modulator is designed in a 0.35 mum CMOS process and consumes 5.5 mW of power under 1.8-V supply.
Keywords
CMOS integrated circuits; broadband networks; cellular radio; code division multiple access; low-power electronics; radio receivers; sigma-delta modulation; CMOS process; GSM; WCDMA receiver; low power dual-mode sigma-delta modulator; power 5.5 mW; size 0.35 mum; voltage 1.8 V; wideband code division multiple access; CMOS process; Delta modulation; Delta-sigma modulation; Dynamic range; Frequency locked loops; GSM; Multiaccess communication; Power supplies; Sampling methods; Transfer functions;
fLanguage
English
Publisher
ieee
Conference_Titel
Electronics, Circuits and Systems, 2007. ICECS 2007. 14th IEEE International Conference on
Conference_Location
Marrakech
Print_ISBN
978-1-4244-1377-5
Electronic_ISBN
978-1-4244-1378-2
Type
conf
DOI
10.1109/ICECS.2007.4511199
Filename
4511199
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