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Re: [802.3_4PPOE] Simulation Values



 

From: Jeff Heath [mailto:jheath@xxxxxxxxxx]
Sent: Tuesday, July 01, 2014 12:35 PM
To: STDS-802-3-4PPOE@xxxxxxxxxxxxxxxxx
Subject: Simulation Values

 

Yair,

I believe you had an objection regarding doing a PI specification using maximum delta resistances on slide 8 for instance.  Your objection was that if Rps1 was 0.95 ohms and Rps2 was 0.0 ohms the percentage was too large.  Given that the goal is maximum pair current, can you explain why this highly improbable PSE case is an issue?

 

Are you suggesting that the PSE PI will include a minimum resistance?  If so, what would it be?

 

Regards,

 

Jeff Heath
Design Center Manager

Description: Linear Technology Corporation

 

 

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