A third-order continuous-time sigma-delta modulator for bluetooth

Wen Lin Yang*, Wen Hung Hsieh, Chung-Chih Hung

*此作品的通信作者

研究成果: Conference contribution同行評審

25 引文 斯高帕斯(Scopus)

摘要

This paper presents the design of a third-order continuous-time (CT) single-bit active-RC sigma-delta (ΣΔ) modulator for Bluetooth application. Through the use of the architecture, cascade of resonators with distributed feedback (CRFB), the signal bandwidth can be improved without increasing the order of the modulator. All integrators are implemented by active-RC type to have better linearity. Furthermore, in order to reduce the effect of the clock jitter, the feedback digital-to-analog converter (DAC) shape is realized by non-return-to-zero (NRZ). The modulator is designed in a standard digital 0.18μm CMOS process with a chip area of 1.32×1.23 mm2. The measurement results show that the modulator achieves 56.8dB SNDR and 60dB dynamic range over 1MHz signal bandwidth, consuming 22.2mW at 1.8V supply.

原文English
主出版物標題2009 International Symposium on VLSI Design, Automation and Test, VLSI-DAT '09
頁面247-250
頁數4
DOIs
出版狀態Published - 1 12月 2009
事件2009 International Symposium on VLSI Design, Automation and Test, VLSI-DAT '09 - Hsinchu, Taiwan
持續時間: 28 4月 200930 4月 2009

出版系列

名字2009 International Symposium on VLSI Design, Automation and Test, VLSI-DAT '09

Conference

Conference2009 International Symposium on VLSI Design, Automation and Test, VLSI-DAT '09
國家/地區Taiwan
城市Hsinchu
期間28/04/0930/04/09

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