Dear all SI gurus, Could some one comment on what range of frequency we need to care for a power plane simulation? For example, for a power plane to support a chip with 800Mhz bus transition. What is the frequency range I need to set for simulation? And if the bus is 1.5voltage type, is ther any guideline to say the amount noise allowed on the power plane? Thank you for helps in advance. Best Regards John. ------------------------------------------------------------------ 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 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