DLL-based pulse-width modulation digital-to-analog converter for continuous-time sigma delta modulators

Zong Yi Chen*, Chung-Chih Hung

*此作品的通信作者

研究成果: Conference contribution同行評審

1 引文 斯高帕斯(Scopus)

摘要

In this paper, the DLL-based pulse-width modulation (PWM) digital-to-analog converter (DAC) is proposed to convert the output of multi-bit quantizer to a single-bit pulse-width modulated signal in the modified continuous-time sigma-delta modulators (CT-SDMs) with improved signal transfer function (STF). The DLL-based PWM DAC is more robust to clock jitter and excess loop delay (ELD) effects than conventional multi-bit DAC and other PWM DAC with similar speed and power requirements of the integrators in CT-SDMs. Furthermore, the proposed PWM DAC is based on inherently linear single-bit DAC, so the dynamic-element matching (DEM) techniques, which increase the circuit complexity and power consumption to compensate the mismatch of unit elements in the multi-bit DAC, can be removed in CT-SDMs.

原文English
主出版物標題2014 IEEE 57th International Midwest Symposium on Circuits and Systems, MWSCAS 2014
發行者Institute of Electrical and Electronics Engineers Inc.
頁面757-760
頁數4
ISBN(電子)9781479941346, 9781479941346
DOIs
出版狀態Published - 23 9月 2014
事件2014 IEEE 57th International Midwest Symposium on Circuits and Systems, MWSCAS 2014 - College Station, United States
持續時間: 3 8月 20146 8月 2014

出版系列

名字Midwest Symposium on Circuits and Systems
ISSN(列印)1548-3746

Conference

Conference2014 IEEE 57th International Midwest Symposium on Circuits and Systems, MWSCAS 2014
國家/地區United States
城市College Station
期間3/08/146/08/14

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