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Reducing PCI Express 3.0 "fuzz" with multi-tap filtersThe Eyes Have it : A Mixed-signal IP Blog - Navraj Nandra, SynopsysNov. 12, 2012 |
Modern PHYs include transmitters which implement multi-tap FIR filters (e.g. three taps for PCIe3) and receivers which typically implement both linear equalizers and DFEs. The purpose of all of this equalization capability is to compensate for the frequency dependent attenuation of the channel.
