Evolutionary design of high signal integrity interconnection based on eye-diagram
Evolutionary design of high signal integrity interconnection based on eye-diagram
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DOI：
10.1007/s10015-018-0433-2
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发表时间：
2018-04
影响因子：
0.9
通讯作者：
T. Odaira;Naoki Yokoshima;I. Yoshihara;M. Yasunaga
中科院分区：
文献类型：
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作者：
T. Odaira;Naoki Yokoshima;I. Yoshihara;M. Yasunaga
PCB中数字信号的频率一直保持在1 GHz左右，而VLSI中的数字信号频率则超过几GHz。频率间隙来自PCB中GHz域中的信号完整性（SI）劣化。为了克服这个问题，我们已经提出了分段传输线，其中使用遗传算法来解决设计中的组合爆炸问题。本文提出了一种基于眼图的适应度方法，该方法广泛应用于高速互连设计领域的信号完整性评估。提出了一种基于虚拟眼图的快速眼图计算方法。这种眼图是通过叠加单次脉冲响应来构造的，可以减少仿真时间。仿真实验表明，我们提出的适应度增加眼高和眼宽分别为3.07和1.06倍，与传统的。
Frequency of the digital signal in PCBs has remained at about 1 GHz, while that in VLSIs become more than several GHz. The frequency gap comes from signal integrity (SI) deterioration in PCB in GHz-domain. To overcome this problem, we have already proposed segmental transmission line, in which genetic algorithm is used to solve the combinatorial explosion problem in the design. In this paper, we propose a novel fitness based on the eye-diagram, which is widely and generally used for SI evaluation in the high-speed interconnection design field. And we also propose a high-speed eye-diagram calculation method based on virtual eye-diagram. This eye-diagram is constructed by superposing the single-shot pulse responses and can reduce the simulation time. The simulation experiments demonstrate that our proposed fitness increases the eye height and eye width by 3.07 and 1.06 times, respectively, compared with the conventional one.