Efficient algorithm for multi-tone spectral test of ADCs without requiring coherent sampling

IEICE Electronics Express

Zhiqiang Liu¹  Yue Lin²  Jiangtao Xu²  Minshun Wu² 

[1] Department of Electronics and Computer Engineering, Iowa State University;School of Electronics and Information Engineering, Xi’an Jiaotong University

关键词: analog-to-digital converter;    multi-tone spectral test;    non-coherent sampling;    spectral leakage;   

DOI  :  10.1587/elex.13.20160784

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(11)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.

【 授权许可】

Unknown