[SI-LIST] Re: inner Xtalk of a differential pair
- From: "Loyer, Jeff" <jeff.loyer@xxxxxxxxx>
- To: <xlzhou@xxxxxxxxx>
- Date: Tue, 11 Nov 2003 09:54:23 -0800
This is contrary to what I would expect - it doesn't make sense to me. =
And, based on the lack of other responses, is contrary to what others =
would expect.
The only time I can see using this configuration would be during =
measurements, when I want to carefully control exactly where traces are =
allowed to couple. At the launch point it might be necessary to use =
this configuration to coincide with a probe configuration. At other =
points I would merely separate the traces. =20
Jeff Loyer
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Zhou, Xingling (Mick)
Sent: Monday, November 10, 2003 10:58 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] inner Xtalk of a differential pair
Guru,
I have seen some designers try hard and prefer to reduce (single-ended) =
=3D
Xtalk between two trace within a differential pair, sometimes by using =
=3D
GSGSG configuration. Obviously, this is not because of a routing =3D
concerns, it is an electrical consideration. Are there any reasons from =
=3D
electrical point of view ? Let's assume symmetric pair. =3D20
Thanks,
Mick
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=20
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