A low power sigma-delta modulator for dual-mode wide-band receiver

淡江大學機構典藏 > 工學院 > 電機工程學系暨研究所 > 期刊論文 > Item 987654321/89124

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題名:	A low power sigma-delta modulator for dual-mode wide-band receiver
作者:	Chen, Hsin-Liang;Li, Yi-Tsung;Chiang, Jen-Shiun
貢獻者:	淡江大學電機工程學系
關鍵詞:	Global system for mobile communication (GSM);Interpolative technique;Low-distortion;Sigma-delta modulator (SDM);Wideband code division multiple access (WCDMA)
日期:	2012-05
上傳時間:	2013-05-17 10:07:45 (UTC+8)
出版者:	New York: Springer New York LLC
摘要:	This work presents a low power cascaded sigma-delta modulator for GSM and WCDMA applications. The proposed modulator has the characteristics of wide bandwidth for WCDMA applications and low distortion in the low frequency band for GSM applications. Low-distortion and interpolative techniques are used in this modulator to enhance the performance. The low-distortion technique has not only the swing-suppressing characteristic, but it can reduce the power consumption. Moreover, the resolution can be improved even under non-linearity effects. An experimental chip is implemented in the standard 0.18-μm 1P6M CMOS technology. The measurements indicate a dynamic range of 76/68 dB and a peak signal to noise plus distortion ratio of 70/61 dB for GSM/WCDMA applications. The core area is 1 × 1.4 mm2 and the power consumption is 10.5/28 mW for GSM/WCDMA at 1.8 V.
關聯:	Analog Integrated Circuits and Signal Processing 71(2), pp.179-185
DOI:	10.1007/s10470-011-9722-6
顯示於類別:	[電機工程學系暨研究所] 期刊論文

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