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你好!请教关于am3358芯片的DDR接口问题。谢谢!



你好!

请问下关于DDR3的接口端接情况,看datasheet上说明只需要在如下接口上串接22ohm的电阻即可。但对于贵公司的参考原理图上是采用DDR芯片端接上拉到VTT的方法,这两种端接方式有区别吗?哪个更好些呢?多谢!