[SI-LIST] Re: AC coupling capacitor placement - on board PCIe devices
- From: Alexandre.AMEDEO@xxxxxxxxxxxxxxxxxx
- To: ibowden@xxxxxxxxxxxxxxxxx, m.ranjithkumar@xxxxxxxxxxxxx, si-list@xxxxxxxxxxxxx
- Date: Tue, 27 May 2008 18:23:16 +0200
Hi all,=20
So if I place my capacitor on the driver or in the receiver (both in =
the same board) for an High Speed signal (2.5 to 6Gb/s) it doesn't =
change the shape of my signal?
Which value of capacitor is needed? Which package?
Thank you for your help,=20
Regards=20
Alexandre AMEDEO
-----Message d'origine-----
De : si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]De la part de Bowden, Ivor
Envoy=E9 : mercredi 12 mars 2008 17:25
=C0 : M.Ranjith; si-list@xxxxxxxxxxxxx
Objet : [SI-LIST] Re: AC coupling capacitor placement - on board PCIe
devices
For=3D20separate=3D20mother=3D20boards=3D20/=3D20plug=3D20in=3D20boards,=
=3D20the=3D20caps=3D20=3D
need=3D20to=3D20be=3D20on=3D20the=3D20TX=3D20lanes=3D20of=3D20each=3D20b=
oard.
For=3D20system=3D20boards=3D20where=3D20both=3D20PCIe=3D20devices=3D20ar=
e=3D20on=3D20the=3D20s=3D
ame=3D20board,=3D20the=3D20caps=3D20can=3D20be=3D20anywhere,=3D20but=3D2=
0it=3D20can=3D20be=3D20c=3D
onvenient=3D20for=3D20probing=3D20to=3D20put=3D20them=3D20close=3D20to=3D=
20the=3D20RX=3D20pins=3D
.
-Ivor
-----Original=3D20Message-----
From:=3D20si-list-bounce@xxxxxxxxxxxxx=3D20[mailto:si-list-bounce@freeli=
sts.or=3D
g]=3D20On=3D20Behalf=3D20Of=3D20M.Ranjith
Sent:=3D20Wednesday,=3D20March=3D2012,=3D202008=3D209:04=3D20AM
To:=3D20si-list@xxxxxxxxxxxxx
Subject:=3D20[SI-LIST]=3D20AC=3D20coupling=3D20capacitor=3D20placement=3D=
20-=3D20on=3D20bo=3D
ard=3D20PCIe=3D20devices
Hi=3D20All,
What=3D20is=3D20the=3D20AC=3D20coupling=3D20capacitor=3D20placement=3D20=
recommendation=3D20=3D
for=3D20the=3D20on=3D20board=3D20PCIe=3D20devices.=3D20(Both=3D20the=3D2=
0devices=3D20are=3D20i=3D
n=3D20same=3D20board).
We=3D20have=3D20Midbus=3D20probe=3D20(soft=3D20touch=3D20pad)=3D20betwee=
n=3D20the=3D20device=3D
s.
Thanks
Ranjithkumar=3D20M.
-------------------
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baca.=3D20It's=3D20o=3D
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Check=3D20it=3D20out=3D20-=3D20http://www.abaca.com/success/story.cgi?do=
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tech.co.in
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