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How to measure VOH(DC) parameter of DDR3

Question asked by sonkiet on Jul 24, 2012
Latest reply on Jul 31, 2012 by sonkiet
Hi everybody,

I found in DDR3 specification JEDEC79-3E define VOH(DC) is DC output high measurement level (for IV curve linearity). But there is no guide for how to measure DC output high, especially when signal has a ring at high voltage level, please see picture attached. Could anyone help me for how to measure VOH(DC) of DDR3?