[SI-LIST] Re: Crosstalk between two planes
- From: Aneesh G <aneesh.govindan@xxxxxxxxx>
- To: "Jaison Fernandez (RBEI/EED2)" <Jaison.Fernandez@xxxxxxxxxxxx>
- Date: Thu, 17 Jun 2010 19:07:45 +0530
Hi Jaison,
Hope this stackup will work for you.
1. Top
2. Gnd1
3. Power
4. Sig1
5. Gnd2
6. Sig2
7. Gnd3
8. Bottom
By following the above stackup crosstalk can be avoided between Sig1 and
Sig2.
--
Warm Regards
Aneesh G
On Thu, Jun 17, 2010 at 1:36 PM, Jaison Fernandez (RBEI/EED2) <
Jaison.Fernandez@xxxxxxxxxxxx> wrote:
> Dear Experts,
> I have a layer stack up like as follows:
>
> 1. Top
> 2. Gnd1
> 3. Power
> 4. Gnd2
> 5. Sig1
> 6. Sig2
> 7. Gnd3
> 8. Bottom
>
>
> My board is one which contains ATMEL AT91SAM9M10, 128MB SDRAM (166MHz), GPS
> Chip solution, High current motor Drivers etc.
>
> I placed Atmel and SDRAM in bottom layer and routed the SDRAM signals in
> Sig1 and Sig2 planes.
> Could any one tell me the chances crosstalk between sig1 and Sig2 planes
> and possible ways to avoid it.
> Due to some tool limitations I can't able to due any POST SI
> analysis.(Stack up of Layer1 to Layer 3 is fixed due to some high current
> applications)
>
> Regards,
> Jaison Fernandez
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