Hi Bala,
Many Ethernet PHY datasheets mentioned this 5% as overshoot value for
Network interface signals(I.e MDI signals towards magnetic transformr).Does
it sounds like same value.?
On Thu, May 28, 2015 at 11:56 PM, bala r <balaseven@xxxxxxxxx> wrote:
It shouldn't be more than 5%.
------------------------------
From: ravi kumar Golakoti <gkravi.1988@xxxxxxxxx>
Sent: â28-â05-â2015 11:47 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Reg:Overshoot and undershoot levels for 100mbps MII
signals
Hi Team,
In our design i am using One Ethernet PHY supporting 10/100 Mbps speed.I am
carrying out Signal Integrity simulation for this interface.I checked
various datasheets of Ethernet PHY from various manufacturers ,none of them
provide Overshoot and Undershoot details for the MII signals between MAC
and PHY.
Could you please provide Overshoot and Undershoot details and suggest on
the following .
" I gone through IEEE802.3 standard, under section 22.4 it is given as ,an
overshoot of 7.5 volts and undershoot of -1.8 volts with a duration not
exceeding 15ns is allowed for this signals." May i take this as reference.
--
Thanks&Regards
G Ravi kumar
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