Hello SI experts,
I have many differential pairs in my design that should be matched to Zdiff =
100 ohms on the PCB.
But my stackup has very thin dielectric material and I won't be able to reach
more than 80 ohms differential impedance.
This is typical value, thus I can expect Zdiff to be as low as 70 ohms.
I would like to know the electrical and functional impact of Zdiffp-80 ohms on
following differential signals:
o LVDS 100Mbps
o Ethernet 100Base-TX
o Ethernet 1000Base-BX (Xilinx Multi-Gigabit Transceiver)
o Ethernet SGMII (Xilinx Multi-Gigabit Transceiver)
o 25MHz LVDS Clock
o 200MHz LVDS clock
o 125MHz AC-coupled LVPECL clock
Thank you for your answers.
Regards.
[cid:image019.png@01D38BAE.3AF37340]
Jean-Pierre BOUTHEMY
Ingénieur Etude et Développement en Electronique
Département R&D
Centre de Compétences Groupe Microélectronique
Systèmes de Mission de Défense
Tel.: +33 (0)2 23 55 42 28
jean-pierre.bouthemy@xxxxxxxxxxxxxxxxxx<mailto:jean-pierre.bouthemy@xxxxxxxxxxxxxxxxxx>
THALES
CAP Bretagne - Zone Artisanale Piquet Sud
35370 ETRELLES - France
www.thalesgroup.com/microelectronics<http://www.thalesgroup.com/microelectronics>
[http://intranet.peopleonline.corp.thales/portal/outlook/signature/ico_linkedin.png]<http://www.linkedin.com/company/thales>
[http://intranet.peopleonline.corp.thales/portal/outlook/signature/ico_twitter.png]<https://twitter.com/thalesgroup>
[http://intranet.peopleonline.corp.thales/portal/outlook/signature/ico_fb.png]<https://www.facebook.com/thalesgroup>
[http://intranet.peopleonline.corp.thales/portal/outlook/signature/ico_youtube.png]<https://www.youtube.com/user/thethalesgroup>
[http://intranet.peopleonline.corp.thales/portal/outlook/signature/ico_pinterest.png]<https://pinterest.com/thalesgroup/>
[http://intranet.peopleonline.corp.thales/portal/outlook/signature/ico_google.png]<https://plus.google.com/+thales>
------------------------------------------------------------------
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 forum is accessible at:
http://tech.groups.yahoo.com/group/si-list
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
