[SI-LIST] Re: 10 Layer Stackup Recommendation for Board with High speed Signals(SERDES/DDR)
- From: steve weir <weirsi@xxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Wed, 08 Aug 2012 10:46:55 -0700
That stack-up could be in real trouble: Big cavities, plus lot's of
single-ended injection usually spells trouble. If you plan to route the
DDR2 Manhattan using L3 and L8 as a routing pair, then about your only
hope is if you forgo Power2 and make that also GND. Otherwise,
something will have to give.
Steve
On 8/8/2012 6:32 AM, Prashanth Rajappan wrote:
> Hi All,
> I am looking for suggestions for our PCB which has high speed interfaces like
> SERDES /DDR2/GIGA BIT Ethernet.The current stackup is given below.
>
> Top
> GND
> SIG1 - SERDES / DDR2/High Speed Signals
> SIG2 - DDR2
> POWER1
> GND
> SIG3 - DDR2
> SIG4 - SERDES / DDR2/High SpeedSignals
> POWER2
> BOT
>
> PLease let me know your comments or suggestion regarding the same.
>
> Thank you in advance!
>
>
> Regards
> Prasanth
>
> ------------------------------------------------------------------
> To unsubscribe from si-list:
> si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
>
> or to administer your membership from a web page, go to:
> //www.freelists.org/webpage/si-list
>
> For help:
> si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
>
>
> List forum is accessible at:
> http://tech.groups.yahoo.com/group/si-list
>
> List archives are viewable at:
> //www.freelists.org/archives/si-list
>
> Old (prior to June 6, 2001) list archives are viewable at:
> http://www.qsl.net/wb6tpu
>
>
>
--
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.
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
or to administer your membership from a web page, go to:
//www.freelists.org/webpage/si-list
For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
List forum is accessible at:
http://tech.groups.yahoo.com/group/si-list
List archives are viewable at:
//www.freelists.org/archives/si-list
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
Other related posts:
