Real-Time Blind Calibration for Frequency Response Mismatches in Two-Channel TI-ADCs

被引：0

作者：

Liu Guiqing ^{[1
]}

Wang Yinan ^{[1
]}

Liu Husheng ^{[1
]}

Diao Jietao ^{[1
]}

机构：

[1] Natl Univ Def Technol, Dept Circuit & Syst, Changsha 410073, Hunan, Peoples R China

来源：

PROCEEDINGS OF 2017 13TH IEEE INTERNATIONAL CONFERENCE ON ELECTRONIC MEASUREMENT & INSTRUMENTS (ICEMI), VOL 1 | 2017年

基金：

中国国家自然科学基金;

关键词：

TIADC; real-time; blind calibration; frequency response mismatch; INTERLEAVED ADCS; SYSTEMS; OFFSET; ERRORS; GAIN;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper introduces a real-time blind calibration algorithm for frequency response mismatch in two-channel time-interleaved(TI) ADCs. By adding an offset calibration algorithm before frequency response calibration algorithm, we can compensate offset, gain, timing and bandwidth mismatches. The offset calibration algorithm is low complexity and very efficient, which consume only several adders. In addition, we replace FxLMS with Signed-FxLMS to reduce resource consumption and improve clocking performance. In order to achieve superior clocking performance, the whole algorithm is designed to a full-pipelined form. Finally, we demonstrate the efficiency of the calibration algorithm by XILINX ISIM.

引用

页码：293 / 298

页数：6

共 16 条

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