A low-power 2 GHz data conversion using delta modulation for portable application

被引：2
|
作者：
Naderi, Ali [1 ]
Sawan, Mohamad [1 ]
Savaria, Yvon [1 ]
机构：
[1] Ecole Polytech Montreal, Dept Elect Engn, Montreal, PQ, Canada
来源：
INTEGRATION-THE VLSI JOURNAL | 2009年 / 42卷 / 01期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Bandpass delta modulator; Under-sampling; Radio receiver; Bandpass filter; SIGMA-MODULATOR; DESIGN;
D O I：
10.1016/j.vlsi.2008.08.002
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper describes a new bandpass delta modulator dedicated to low-power and portable applications. The proposed modulator can convert a wide range of frequency, 500 MHz to 2.6 GHz, into an IF as low as 20 MHz by using under-sampling. Design issues in excess loop delay, linearity, and high frequency operation are discussed and some circuit solutions are proposed for a continuous-time modulator. Simulation and experimental results obtained using CMOS 0.13 mu m IBM technology are presented and discussed. Total power consumption is 37.2 mW when the voltage supply is 1.2 V. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：68 / 76
页数：9
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