Analysis on Unintentional Resonances in High-Speed Signals from Non-Ideal Routing Stub
Analysis on Unintentional Resonances in High-Speed Signals from Non-Ideal Routing Stub
复制标题
非理想路由短线高速信号中的无意谐振分析
DOI：
--
复制
发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Donghyun Kim
中科院分区：
文献类型：
--
作者：
Yuanzhuo Liu;S. Bai;Bo Pu;Jongjoo Lee;Donghyun Kim
随着更多的组件被集成到电子设备中的更密集的区域中，布线的复杂性增加。由布线工具产生的布线设计可能通过所有设计规则检查，但它也可能导致信号完整性问题，这会影响整个链路路径的性能，通常直到布局阶段才实现。在本文中，这样的设计进行了分析，他们无意中的插入损耗和串扰的信号谐振。作为示例，由与信号迹线相邻的迹线布线修订创建的无意的电源平面短截线表现为四分之一波长谐振结构。为了避免高速信号中的这种意外谐振，应仔细设计走线布线，并且必须改进设计规则检查，以检测并警告用户这种潜在的信号完整性危害。
As more components are integrated into a denser area in electronic devices, the complexity of routing increases. A routing design resulting from routing tools may pass all design rule checks, but it can also result in signal integrity problems, which affect the performance of the entire link path, often not realized until the layout stage. In this paper, such designs are analyzed for their unintentional resonances in the insertion loss and the crosstalk of the signals. As an example, an unintentional power plane stub created by trace routing revisions adjacent to the signal trace behaves as a quarter-wavelength resonant structure. To avoid such unintentional resonances in high-speed signals, trace routing should be carefully designed and design rule checks must be improved to detect and warn the users of such potential signal integrity hazards.