Reflection Enhanced Compensation of Lossy Traces for Best Eye-Diagram Improvement Using High-Impedance Mismatch
Autor: | Feng-Neng Tsai, Ruey-Beei Wu, Guang-Hwa Shiue, Wei-Da Guo |
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Rok vydání: | 2008 |
Předmět: | |
Zdroj: | IEEE Transactions on Advanced Packaging. 31:619-626 |
ISSN: | 1557-9980 1521-3323 |
DOI: | 10.1109/tadvp.2008.920649 |
Popis: | As the signal rates increase toward the multigigabit range, the lossy effect of typical transmission lines on the signal quality of printed circuit boards has become a more and more significant issue. This paper introduces the concept of reflection gain resulted from the high-impedance mismatch to improve the eye diagram at the receiving end by inserting the inductance or high-impedance line between the signal trace and matched termination. A systematic design methodology is also proposed here to tell how to resolve the optimal high-impedance elements for the finest compensation efficiency. Moreover, with the optimal inductance, a design formula based on the circuit theory is derived accordingly to estimate the approximate length of high-impedance line and after that, the ultimate performance of this compensation method is also evaluated. Eventually, some experiments are imple mented to validate the design technique. |
Databáze: | OpenAIRE |
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