cyclone V caacading fpll for sdi ii(transceiver) xcvr_refclk filter error?

I use SDI II ip core, the sdi ii xcvr_refclk , I use the Fractional PLL (fPLL) to supply it . http://www.alteraforum.com/forum/attachment.php?attachmentid=10858&stc=1 http://www.alteraforum.co...