All,

Regarding T10/08-248r0 presented on the call this morning, I believe it was Bruce Johnson who asked about whether the proposal adequately stressed delta-F/delta-T.  FWIW, it seems that extending Guillame’s analysis on slides 7-9 shows that the peak dF/dt for the prescribed SJ is about 1400 ppm/usec, independent of the modulation frequency.  Hence, it seems this test comfortably bounds the earlier proposed 1250 ppm/usec SSC limit.

Regards,

Mike

---

From: owner-t10@t10.org [mailto:owner-t10@t10.org] On Behalf Of Alvin.Cox@seagate.com
Sent: Wednesday, May 21, 2008 10:28 AM
To: t10@t10.org
Subject: Reminder, SAS PHY WG call, May 22, 10:00am CDT

Toll Free Dial in Number: (877)810-9442
International Access/Caller Paid Dial In Number: (636)651-3190
PARTICIPANT CODE: 3243413

Webex information:
https://seagate.webex.com/seagate
Topic: SAS-2 PHY WG
Date: Thursday
Time: 10:00 am, Central Daylight Time
Meeting number: 826 515 680
Meeting password: 6gbpsSAS

Agenda:

1. Letter ballot comment resolution:
        a.  Update on receiver testing. [Witt, Newman]
        b.  External mini-SAS Cable keying
        c.  Please identify any additional concerns not addressed yet.        


Alvin Cox
Seagate Technology, LLC
Cell 405-206-4809
E-Mail  alvin.cox@seagate.com