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MMPF0100 PMIC - VTT Rail

Question asked by David Kearney on Mar 20, 2017
Latest reply on Mar 22, 2017 by Jose Alberto Reyes Morales

Hi There,

 

I'm planning  on using the MMPF0100 as the PMIC for a Zynq Z7020-based design. AN4991 has a useful reference design for this application, I just have once concern regarding VTT, the DDR3 active termination rail. This rail needs to Source and Sink current during DDR3 activity, and I don't see this explicitly addressed in the datasheet. It mentions that SW4 has a VTT mode which tracks V_DDR3/2, but in this PWM mode does it also successfully sink the required current? 

 

Many Thanks in advance,

Dave

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