FreeLists / si-list / [SI-LIST] Re: CAN Edge Rates

["Martin.J Thompson" <Martin.J.Thompson@xxxxxxx>]

>
>
>>>> "Chris McGrath" <chris.mcgrath@xxxxxxxx> 05 January 2005 21:50:20
>>>
>
>While CAN is hardly a "high speed" interface, we have a curiosity
which
>has prompted me to ask if anybody in this forum knows the edge rate
spec
>for physical layer CAN.  I don't think that any standard defines this
>and our CAN transceiver vendor does not specify it in their data
sheet.
>

The Philips 82C250 says 14V/us slew rate with it's slew-rate-setting
resistor at 47k ohms.  Does that help?

Are you doing high-speed or low-speed CAN?

There are very slow by SI standards, as they are designed to operate in
a very EMI-conservative environment.

Sorry not to be more help!

Cheers,
Martin


-- 
Martin Thompson CEng MIEE
TRW Conekt, Stratford Road, Solihull, B90 4GW. UK
+44 (0)121-627-3569 : martin.j.thompson@xxxxxxx
http://www.conekt.net/
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