[SI-LIST] Re: FPC Cable Max Bus Frequency
- From: steve weir <weirsi@xxxxxxxxxx>
- To: ranjith <hw_si@xxxxxxxxxxxxxx>
- Date: Fri, 18 Sep 2009 00:00:26 -0700
You need to look at:
Timing requirements
Rise time
Termination scheme
Channel length
Cable length
Impedance at the connector transitions
Impedance in the cable
Signal assignments / Return path
At 10ns / bit if the channel isn't very long it could be that even
garbage will work OK. Going through 1m cable would be another matter.
Steve
ranjith wrote:
> Dear Experts,
> We are plannng to use FPC (Flex Cable) for external local bus signals
> (Adddress, 16-bit Data and Control signals) (Maximum 104MHz) from
> board-to-board.
> The FPC mating Connector pin-to-pin pitch is 0.3 mm.
>
> FPC cable contact pin is gold plated and Flex cable trace width is 0.2 mm and
> trace-to-trace spacing (Air gap)is 0.1 mm. Maximum cable length is 5 cm ( 2
> inch).
>
> Is this recommned to run parallel bus (104Mhz) lines using this FPC cable?
> Will it create any cross talk and signal integrity issues?
>
> And what is the Maximum and Minimum bus frequency we can use in FPC cables
> (Max length 2 inch)?
>
> Thanks in Advance.
>
> Thanks
> Ranjith
>
> ------------------------------------------------------------------
> 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 technical documents are available at:
> http://www.si-list.net
>
> List archives are viewable at:
> //www.freelists.org/archives/si-list
> or at our remote archives:
> http://groups.yahoo.com/group/si-list/messages
> 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
(866) 675-4630 Business
(707) 780-1951 Fax
http://www.ipblox.com
A Teraspeed Consulting Group LLC Partner
Teraspeed Consulting Group
121 North River Drive
Narragansett, RI 02882
(401) 284-1827 Business
(401) 284-1840 Fax
Teraspeed Labs
13610 SW Harness Lane
Beaverton, OR 97008
(503) 430-1065 Business
(503) 430-1285 Fax
A Teraspeed Consulting Group LLC Partner
http://www.teraspeed.com
This e-mail contains proprietary and confidential intellectual property of
IPBLOX LLC
------------------------------------------------------------------------------------------------------
Teraspeed(R) is the registered service mark of Teraspeed Consulting Group LLC
------------------------------------------------------------------
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 technical documents are available at:
http://www.si-list.net
List archives are viewable at:
//www.freelists.org/archives/si-list
or at our remote archives:
http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
Other related posts:
