交替并行模数转换器系统通道的失配误差

上海大学学报(自然科学版) ›› 2009, Vol. 15 ›› Issue (2): 125-129.

交替并行模数转换器系统通道的失配误差

洪亮张俊杰

(上海大学特种光纤与光接入网省部共建重点实验室，上海 200072)

收稿日期:2007-11-01 出版日期:2009-04-22 发布日期:2009-04-22
通讯作者: 张俊杰(1978~)，男，讲师，博士，研究方向为高速数据采集、集成电路以及FPGA设计等. E-mail:zjj@staff.shu.edu.cn
作者简介:张俊杰(1978~)，男，讲师，博士，研究方向为高速数据采集、集成电路以及FPGA设计等.
基金资助:
上海市优秀青年教师基金资助项目;上海市重点学科建设资助项目(T0102)

Channel Mismatch Effects in Time-Interleaved A/D Converters

HONG Liang, ZHANG Jun-Jie

(Key Laboratory of Specialty Fiber Optics and Optical Access Networks， Shanghai University, Shanghai 200072, China)

Received:2007-11-01 Online:2009-04-22 Published:2009-04-22

摘要/Abstract

摘要：

研究交替并行模数转换器(TIADC)系统的带宽失配误差效应，并在此基础上，推导出结合4种通道失配误差和量化误差的信纳比(SINAD)的数学表达式.这些公式能够为消除TIADC通道失配误差提供理论依据.最后，通过仿真验证了公式的有效性.

关键词: 交替并行模数转换器；带宽失配误差；信纳比

Abstract:

Bandwidth mismatch effect in time-interleaved A/D converter (TIADC) is studied. Formulas of the signal-to-noise-and-distortion ratio (SINAD) for combination of four different channel mismatches and quantization errors are proposed. The derived formulas can be used for calibration to compensate for the channel mismatch effects. Simulation results are presented to verify the formulas.

Key words: time-interleaved A/D converter (TIADC); bandwidth mismatch; signal-to-noise-and-distortion ratio (SINAD)

中图分类号:

TP 274.2

洪亮张俊杰. 交替并行模数转换器系统通道的失配误差[J]. 上海大学学报(自然科学版), 2009, 15(2): 125-129.

HONG Liang, ZHANG Jun-Jie. Channel Mismatch Effects in Time-Interleaved A/D Converters[J]. Journal of Shanghai University（Natural Science Edition）, 2009, 15(2): 125-129.