[SI-LIST] Re: Slew Rate Calculation
- From: "Benny Yan" <bennyzhi@xxxxxxxxx>
- To: arjun.bingipur@xxxxxxxxxx
- Date: Mon, 27 Nov 2006 10:59:50 +0800
Should it be DDR2?
It seems that the loading is too small, have you checked the model you used?
like package,
C_comp...
On 11/25/06, Bingipur, Arjun <arjun.bingipur@xxxxxxxxxx> wrote:
>
>
> Hi,
>
> I'm doing a static timing analysis for determining the slew rate for the
> differential clock signals of a DDR. When I do a slew rate derating
> calculation on the eye diagram, I end up with values of around 6V/ns and
> I 'm unable to consider this value to compare with the address/command
> derating values to arrive at the correct setup and hold time values in
> the data sheet.
>
> The topology is such that a controller is driving a single DDR with a
> differential termination of 120 ohm connected close to the receiver IC.
> Am I missing something here?
>
> Regards,
> Arjun Bingipur
>
>
>
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