中圖分類號：TN402 文獻標志碼：A DOI: 10.16157/j.issn.0258-7998.240806
中文引用格式： 黃剛，吳均. Optimality在多個場景的時域仿真中高效性的深度研究[J]. 電子技術應用，2024，50(8)：42-47.
英文引用格式： Huang Gang，Wu Jun. In-depth research about the efficient of Optimality in time domain simulation of multiple design cases[J]. Application of Electronic Technique，2024，50(8)：42-47.

In-depth research about the efficient of Optimality in time domain simulation of multiple design cases

Abstract： With the increasing speed and complexity of products, for simulation, it not only requirs the simulation itself to have a very high accuracy, but also puts forward high requirements for the efficiency of simulation. Specific to different signal modules, such as DDR systems or high-speed signals, because of the increasing speed, more and more people hope simulation can tell us the "optimal solution", such as the optimal configuration of DDR5 particles ODT, the optimal equalization and de-emphasis configuration of chip. How do you get the relatively optimal parameter among hundreds or thousands of combinations of parameters? Traditional software can only be screened through a large number of scans, which has a relatively large cost in both simulation time and engineer's energy. In this paper, Optimality software is used. By sharing some specific simulation cases, we can see the intelligence of the software, which can help us select the optimal parameters more quickly, make the simulation work of DDR and high-speed module easier, and fully reflect the efficiency of this software.

Key words : Optimality；DDR5；DDR4；ODT；System SI；emphasis and equalization