[SI-LIST] Re: SMA cable for TDR

Huber+Suhner also makes some very good cables.  They are priced
accordingly, of course.

I'd suggest instead of SMA's get 3.5mm's.  They're generally
inter-matable and tend to be more robust mechanically.  With 'cheap'
cables, SMA's are fine.  With more expensive cables, I think the 3.5mm's
are worth it.

--
Mark Randol
ON Semiconductor
901 S Mopac Expy
Barton Oaks 4, Ste 343
Austin, TX 78746
512-329-5640 Voice
512-329-8151 FAX

-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
On Behalf Of steve weir
Sent: Tuesday, October 28, 2008 2:49 PM
To: QU Perry
Cc: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: SMA cable for TDR

Gore cables aren't cheap ( particularly Phase Flex ) because they are
very high quality / high bandwidth cables that perform well and if not
abused will last many years. For a high bandwidth TDR or VNA Gore is
always my first choice.  How much performance you need from your cables
depends on what kind of rise times you want to deliver to your DUT from
the TDR, and how consistently you want to deliver it.  If cash is a
problem you can always look through the used market.

Steve
QU Perry wrote:
> Hi,
>  
> I plan to buy some dedicated SMA cables for my TDR measurement that
was
> used to extract S parameters for serdes channels. Rise time about 40ps
> and 3 feet flexible cable will be ideal. Is there any specific vendor
> that you recommend ? I tried W L Gore but they are expensive. 
>  
> Please email me if you have any suggestions.
> Thanks
>
> Perry
>
> ======================================= 
>
> Perry Qu 
>
> Design & Qualification, Alcatel-Lucent Canada Inc.
>
> 600 March Road, Ottawa ON, K2K 2E6, Canada 
>
> DID: 613-7846720  Fax: 613-5993642 
>
> Email: perry.qu@xxxxxxxxxxxxxxxxxx 
>
> ======================================= 
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