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一种统计方法,用于信号和功率完整性协同设计在高速互连,考虑到非线性功率/地面噪声和比特模式
1Department of Semiconductor System Engineering, Sejong University, Seoul 05006, Republic of Korea.
Micromachines
|September 28, 2023
概括
一种新的统计方法使得高速互联网的信号和功率完整性 (SI/PI) 的高效联合设计成为可能. 它准确地预测眼睛图,考虑到复杂的功率/地面噪声和位模式,这对现代电子非常重要.
科学领域:
- 电气工程 电气工程
- 计算机工程 计算机工程
- 计算电磁学 计算机电磁学
背景情况:
- 高速互联网因数据速率增加和运行电压降低而面临较低的噪声边缘.
- 同时开关电路和复杂的比特模式产生非线性功率/地面噪声,复杂的信号和功率完整性 (SI/PI) 联合设计.
- 传统的模拟方法往往需要过多的计算资源,或者给SI/PI分析带来不准确的结果.
研究的目的:
- 提出和验证一种新的统计方法,用于在高速互连中共同设计信号和功率完整性 (SI/PI).
- 准确估计统计眼图,考虑非线性功率/地面噪声和位模式.
- 在高带宽内存 (HBM) 插入器通道中应用SI/PI联合分析的方法.
主要方法:
- 开发了一种新的统计方法来估计高速互联网中的统计眼图.
- 将非线性功率/地面噪声和位模式 (例如数据总线逆向编码) 纳入统计分析中.
- 验证了该方法的准确性和计算效率与HSPICE短暂模拟和像峰值扭曲分析 (PDA) 这样的传统技术相比.
主要成果:
- 与现有方法相比,拟议的统计方法显示出高精度和计算效率.
- 该方法已成功应用于SI/PI联合设计和联合分析高带宽内存 (HBM) 插入器通道.
- 解电容器对PDN阻抗,HBM通道眼图和比特错误率 (BER) 浴曲线的影响被量化.
结论:
- 这种新的统计方法为SI/PI联合设计在高速互连中提供了高效和准确的解决方案.
- 了解层次PDN设计和特定位模式的影响对于优化SI/PI至关重要.
- 导出的BER眼图方便精确的定时和电压分析,以提高互连性能.
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