Open AccessFailure Analysis of a Circuit with AC Noise in the Output Signal
Author(s) -
Yaoqing Cheng,
Yuan Wang,
Jiang Hua Deng,
Dongxu Yue
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1617/1/012062
Subject(s) - electronic engineering , resistor , crosstalk , signal integrity , electronic filter , circuit extraction , discrete circuit , computer science , electrical engineering , signal (programming language) , electronic circuit , circuit design , printed circuit board , engineering , short circuit , equivalent circuit , voltage , programming language
A failure analysis process of a circuit with AC (alternating current) noise in the output signal is presented. To find out the root of the failure, the circuit principle and the layout of the circuit were analyzed, and it was found that the layout design was not unreasonable. Specifically, the output signal wire is too close to the clock signal wire, which results in the coupling crosstalk. To eliminate the coupling crosstalk, serval measures including the filter design, replacement of resistor, and layout optimization were adopted. This work has reference significance for the anti-interference design of circuits.