(no subject)
- From: Goutham.S@xxxxxxxxxx
- To: si-list@xxxxxxxxxxxxx
- Date: Mon, 11 Mar 2002 12:06:26 +0530
Hi,
Can any one explain why the following things normally system designers
follow/prefer:
1.0 2.5V signals should refer only to 2.5V or GROUND PCB plane and not 3V/5V
plane.
>-----If 2.5V signals on signal layer are having 5V reference plane
adjacent to the signal layer then what is the problem?
2.0 Ethernet PHY signals should refer to only transformer secondary supply
voltage PLANE.
>-----If System designer ignores the above point what will happen?
I feel the first point is meaning less for single ended traces (because for Z
control just plane is required), what you say?
Regards
Goutham Sabavat
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