[SI-LIST] Re: Series termination and damping resistors
- From: steve weir <weirsi@xxxxxxxxxx>
- To: Tesla <emcesd@xxxxxxx>
- Date: Tue, 03 Jul 2012 19:37:32 -0700
Judgement is required.
My priorities:
1) Do not subject components to overstress
2) Maximize timing margin across PVT.
Steve
On 7/3/2012 6:09 PM, Tesla wrote:
> Hi, Steve
>
> The resistor value approximates the difference between the TX line
> characteristic impedance and the driver V/I load line characteristic.
> We know the "the driver V/I" may not be a constant for the rising ,falling
> edge, high and low edge, which V/I should we choose to match the line
> charateristic impedance?
> Thanks.
> Tesla.
>
>
> At 2012-07-04 00:45:07,"steve weir"<weirsi@xxxxxxxxxx> wrote:
> >A series damping resistor is any series resistor of any value placed
> >anywhere in the line to dissipate reflections A series terminating
> >resistor is a resistor placed at the transmit end of the line where the
> >resistor value approximates the difference between the TX line
> >characteristic impedance and the driver V/I load line characteristic.
> >
> >Steve.
> >On 7/3/2012 8:55 AM, Jason Young wrote:
> >> Dear experts,
> >> Is a "series terminating resistor" the same as a "series damping
> >> resistor"?
> >> Regards,
> >> Jason
> >>
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> >
> >
> >--
> >Steve Weir
> >IPBLOX, LLC
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--
Steve Weir
IPBLOX, LLC
150 N. Center St. #211
Reno, NV 89501
www.ipblox.com
(775) 299-4236 Business
(866) 675-4630 Toll-free
(707) 780-1951 Fax
All contents Copyright (c)2012 IPBLOX, LLC. All Rights Reserved.
This e-mail may contain confidential material.
If you are not the intended recipient, please destroy all records
and notify the sender.
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