Signal and Power Integrity for a 1600 Mbps DDR3 PHY in Wirebond Package

A DDR3 interface for a data rate of 1600MHz using a wirebond package and a lowcost system environment typical for consumer electronics products was implemented. In this environment crosstalk and supply noise are serious challenges and have to be carefully optimized to meet the data rate target. We are presenting the signal and power integrity analysis used to optimize the interface design and guarantee reliable system operation at the performance target under high-volume manufacturing conditions. The resulting DDR3 PHY was implemented in a test chip and achieves reliable memory operations at 1600MHz and beyond.

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