zdx19880830的专栏

DDR SDRAM板卡设计指南Leveling and Dynamic ODT主要议题如下：端接方案对接收端信号质量影响输出驱动强度对接收端信号质量影响负载类型对信号完整性影响核心目标：理解端接类型、输出驱动强度和负载类型之间的权衡。影响接收端信号质量的关键因素如下： - Leveling and dynamic ODT - Proper use of termination - Output driver drive strength setting - Loading at th

PAM4科普Data Rate（Gb/s = Gagabit Per Second）PAMn LevelsBit Per SymbolSymbol Rate(Symbol Transfer Per Second)Unit Interval(UI)Nyquist FreqSNR Delta