Open AccessDifference‐equalisation based estimation of timing skew for time‐interleaved ADCs in communication systems
Author(s) -
Li Xin,
Gao Bo,
Yan Chenggang,
Ding Desheng,
Wu Jianhui
Publication year - 2019
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2019.2975
Subject(s) - skew , converters , computer science , channel (broadcasting) , electronic engineering , algorithm , mathematics , engineering , telecommunications , electrical engineering , voltage
A difference‐equalisation based method is presented to estimate timing skew adaptively in time‐interleaved analogue‐to‐digital converters (ADCs). By digital zero‐crossing detection and calculating the mean of the absolute difference between adjacent sub‐ADC's outputs, the timing mismatch information for each channel can be identified easily. Simulation results demonstrate that the proposed method can estimate timing skew accurately. Furthermore, the proposed method requires far fewer samples to estimation than the previous methods.