Re: "...high speed serdes..." So you are suggesting that the 8 bit parallel data should be serialized. With some overhead for staying in synch, that probably means that 150MB/s will be transfered at 1.5Gb/s = 667ps per bit. So transition times should be about 250ps or so, therefore I'd want the cable to be able to pass 2GHz over the necessary length without unacceptable loss at that frequency. I guess for a short length, twisted pair can do that. --- Joe S. ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List technical documents are available at: http://www.si-list.net List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu