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CDCVF25081: CDCVF25081 PLL Feedback input issue?

Part Number: CDCVF25081

CDCVF25081 PLL drivers's datasheet says 

"Feedback input. FBIN provides the feedback signal to the internal PLL. FBIN must be wired to one of the
outputs to complete the feedback loop of the internal PLL "

But the problem is that it do not mention that either that output is loaded or not. Because i am sending 8 outputs to SDRAM's and for feedback should i use a free output pin with no load or should i use anyone of the output pins that are sending clock to SDRAM.