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AD9957 PLL_Loop_Filter Connection

Question asked by bcliang on Jul 9, 2012
Latest reply on Jul 10, 2012 by sitti


Please advise on AD9957 PLL_LOOP_FILTER (PIN2) connection. if I am using an external differential REF_CLK source, do I leave the PLL_LOOP_FILTER pin open/NC? How about the PLL_LOCK pin?

Also, I intend to use the ADF4360-7 as the REF_CLK synthesizer and interface directly to the AD9957 by following the suggested interface matching from their perspective data sheet.