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AD9958 Evaluation PCB

Question asked by Engr.for.Radio.Astronomy on Jun 19, 2012
Latest reply on Jun 21, 2012 by DSB

I am currently evaluating the AD9958 DDS evaluation PCB. I am getting ready to build my own PCB design but I am confused when I look at the PCB. Can you tell me the purpose of the four large unplated through holes at the four corners of the AD9958 chip?

 

We have a bet in the lab. I say it was for the installation of a shield over the chip. My colleague says it is fixturing for the placement of the chip prior to and maybe during the soldering operation.

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