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AD9629 Differential Clock Input

Question asked by davekirl on Jun 21, 2014
Latest reply on Jun 23, 2014 by DougI

Hi Guys,

 

Question regarding the AD9629 differential clock input. The datasheet (pg.20 - see attached) has the external clock terminated in a 50R load (figure 46) and then feeding into the Mini-circuits ADT1-1WT XFMR. This XFMR is specified in it's datasheet as 75R, so I'm wondering should the input be a 75R input from the external clock? Does this mean the differential outputs should also be 75R each, and is this suitable for feeding the CLK- and CLK+ pins of the AD9629? Your advice would be much appreciated.

 

Many Thanks,


Dave

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