[SI-LIST] Re: SATA compliance testing
- From: "Kotson, Michael" <mkotson@xxxxxxxxxxx>
- To: "Scott McMorrow" <scott@xxxxxxxxxxxxx>
- Date: Tue, 4 Nov 2008 14:21:57 -0700
Hi Scott,
I'm not sure I follow. Where should the signal quality measurements
be made, such as rise time, amplitude, jitter, etc? Typically in a
desktop system these are made at the motherboard/cable interface
(Gen2i). Should the same hold true for my motherboard/flexcable model?
Thanks,
Mike
-----Original Message-----
From: Scott McMorrow [mailto:scott@xxxxxxxxxxxxx]
Sent: Monday, November 03, 2008 9:22 AM
To: Kotson, Michael
Cc: si-list@xxxxxxxxxxxxx
Subject: Re: [SI-LIST] SATA compliance testing
Mike,
Since your design is a hybrid design where you have control over the
flex assembly, I would perform a compliance test on the entire
end-to-end path, as-if the PCB-Flex were a cable. If this test scenario
passes, then you have more than ample margin.
Scott
Scott McMorrow
Teraspeed Consulting Group LLC
121 North River Drive
Narragansett, RI 02882
(401) 284-1827 Business
(401) 284-1840 Fax
http://www.teraspeed.com
Teraspeed(r) is the registered service mark of
Teraspeed Consulting Group LLC
Kotson, Michael wrote:
> Hi all,
> I have a question about SATA compliance testing for a mobile
system.
> Our system consists of a motherboard with a SATA Gen2 controller and 6
> inches of trace that ends at a high speed connector. This connector
> then mates to a flex assembly (8 inches), which then connects directly
> to the SATA disk drive. Since the SATA spec doesn't really address
this
> scenario, I would be inclined to treat it like a desktop system: The
> motherboard/flex connector would be tested to the Gen2i standards and
> the flex assembly would be tested to the cable standards. Is this the
> correct way to approach this scenario?
>
>
>
> Thanks in advance,
>
> Mike
>
>
>
> --
>
> Michael Kotson
>
> Project Engineer
>
> VT Miltope
>
> 4900 Pearl East Circle Suite 106
>
> Boulder, CO 80301
>
> (303) 473-0388 x132
>
> http://www.miltope.com <blocked::http://www.miltope.com/>
>
>
>
>
>
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Seq.) or the International Traffic in Arms Regulation (ITAR)
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50, U.S.C., App. 2401, Et. Seq.). Violations to these
export laws are subject to severe criminal penalties.
All technical data forwarded by VT Miltope to its suppliers is
EXPORT CONTROLLED. Suppliers shall not disclose technical data
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