Sorry for the previous mail. Recently, I checked our SIT(signal integrity test) department's report for SATA ¢òTX signal testing, and found that the amp SPEC which the used is for rx compliance testing, 275mV and 750mV for min and max respectively, it confused me well. The test fixture which they used is from IC and PCB trace to the connector, and with a typical lab load terminated, the probe location is on the connector. With this test fixture, i think it should use 400mV and 700mV for min and max, is this right? --- Eric Cheng Junior Electrical Simulation Engineer Foxconn Electronics Inc. +086-0535-2168888-79073 ------------------------------------------------------------------ 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 Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu