Hi Bob, I am involved in a similar situation. I have not run across a lot of info on SI or timing issues, however, on the Micron site there is a "designer's toolkit" that offers some things that help. I found that the power calculator tool is quite handy. Additionally, the DDR spec and addendum are mostly concerned with the timing diagrams and pin-outs for the 4/8/16 bit wide devices. You may be able to find more info if you look into the SDRAM stuff, since the DDR is SDRAM with data registered on both edges of the clock. Let me know if you find anything additional. It would be helpful. Regards, Peter "Khederian, Bob" wrote: > > I am doing a design with DDR SDRAM. I am using discrete devices, not > modules. Does anyone know of some good application notes for signal > integrity issues on these parts. > > ------------------------------------------------------------------ > 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 > -- Peter LaFlamme Applied Micro Circuits Corp. Staff System Applications Engineer 200 Minuteman Rd, 3rd Floor Andover, MA 01810 978-247-8470 phone 978-623-0055 Fax ------------------------------------------------------------------ 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