IEICE Electronics Express
Online ISSN : 1349-2543
LETTER
Efficient algorithm for multi-tone spectral test of ADCs without requiring coherent sampling
Minshun WuYue LinJiangtao XuZhiqiang Liu
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JOURNALS FREE ACCESS

2016 Volume 13 Issue 21 Pages 20160784

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Abstract

An efficient algorithm is proposed for eliminating the requirement of coherent sampling in multi-tone spectral test of ADCs. Instead of repetitively performing the single-tone non-coherency correction algorithms, the proposed method simultaneously corrects all non-coherent input signal tones to be coherent, which improves the algorithmic reliability and efficiency greatly. Theoretical analysis and simulation results demonstrate that the developed method can achieve the same test accuracy and equivalent efficiency as the coherent sampling method in both wide and narrow tone spacing cases. Comparative studies from the windowing techniques and the single-tone non-coherency correction methods validate the test accuracy, reliability and efficiency of the proposed method.

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© 2016 by The Institute of Electronics, Information and Communication Engineers
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