30mv Offset voltage

Bill Galloway BillG at breatech.com
Tue Nov 10 15:25:15 PST 1998

* From the T10 (formerly SCSI) Reflector (t10 at symbios.com), posted by:
* "Bill Galloway" <BillG at breatech.com>
Okay all you analog types.

The way I read table A.5 (in SPI-3), a receiver can have up to +/-30mv of
offset voltage.  Signal swings between 3.6V and 0.030V cannot cause the
receiver to change.

If this is true then I believe that Figures 44 and 45 are incorrect.

All of the "May be detected" voltages should be 30mv not 60mv.
The definition for Vtna and Vtan are correct but all other references to
60mv in the figure should be 30mv.

Am I confused or are the figures wrong?????

Bill Galloway
BREA Technologies Inc.
(281) 988-0358
BillG at breatech.com

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