[SI-LIST] Re: High Speed Switch
- From: "Jim Antonellis" <janton@xxxxxxxxxxxxxxxxxx>
- To: <justin.tabatchnick@xxxxxxxxx>, <si-list@xxxxxxxxxxxxx>
- Date: Tue, 14 Sep 2004 22:21:34 -0400
Also, the COTO Relay B41 is a very dense, coaxial relay in a BGA package
with 2 diff pairs in a single pkg. For price and PCB realestate relief
I speced out a couple of 2x2 async Xpoint switches, but in addition to
jitter and prop delay, you can't "see" your silicon through these =
devices
if you are looking for characterization.
If you want drop my a direct email and I'll send you a spreadsheet I put
together with Qty, PCB Area and Cost as metrics.
Jim
-
Jim Antonellis jim.antonellis@xxxxxxxxxxxxx
Sandburst Corp www.sandburst.com
Office: 978.689.1669=20
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-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Tabatchnick, Justin
Sent: Tuesday, September 14, 2004 10:11 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: High Speed Switch
You might try RF -180 by Teledyne, they're mechanical relays, DPDT (
but can be used as SPDT) , small form factor and rated to 6 GHz or
Dowkey has some mechanical relays , a bit larger, but rated to 26 GHz .
I would stay away from solid state relays if you care about jitter.
Justin Tabatchnick
Intel, Sacramento
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
On Behalf Of Ray Anderson
Sent: Tuesday, September 14, 2004 6:54 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: High Speed Switch
I meant SPDT (not SPST) in my earlier message. These were SMD type
units.
-Ray
Ray Anderson wrote:
>You might want to check with the Agilent components people. About a
year=3D20
>ago the R&D lab people there were demonstrating some mechanical=3D20
>(actually Hg) SPST switches that were impedance controlled and usable
>
^^^^^^^^^
>=3D20
>up to about 10GHz. I don't know if they were ever productized or not.
>
>You pulsed one input with about 18VDC for a millisecond and it switched
>one way, pulsed the other input for a millisecond and it switched =
the=3D20
>other way. No hold current required. I think it leveraged off of ink
jet=3D20
>technology. Instead of squirting drops of ink it squirted drops of=3D20
>mercury inside the switch.
>
>These may be overkill for your application, but I thought the
technology=3D20
>involed was kind of neat when it was described to me.
>
>-Ray
> =3D20
>
.
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