[time-nuts] Cs jr.

[Bob Camp]

Hi

Take a careful look at the specs on the SA.31M before you buy one. It
may or may not be what you are looking for in terms of stability and 
temperature range. 

We do live in a “no free lunch” sort of world. There will always be 
tradeoffs in any design. It’s an amazing part, they did a lot in a small
package with very little power. There were tradeoffs.   

The CSAC behaves like a gas cell device (similar to a Rubidium) rather 
than a beam cell device. That’s because it *is* a gas cell that just happens 
to use Cs rather than Rb. The performance of a 5071 comes more from 
the beam cell approach than from the Cs in this case. 

Bob

> On May 17, 2016, at 4:49 AM, Attila Kinali <attila at kinali.ch> wrote:
> 
> On Tue, 17 May 2016 00:52:00 +0000 (UTC)
> Perry Sandeen via time-nuts <time-nuts at febo.com> wrote:
> 
>> Several years ago we were enthralled by the NIST designed Cs that
>> still needed cal once in a while.
> 
> Which one do you mean? 
> 
>> It was listed for sale IIRC for $1400 or so.
>> Since then it has seemed to have fallen off of the radar screen.
>> Does anyone have any follow-up info?
> 
> The only one that cheap I am aware of is the chip scale atomic clock
> (CSAC) SA.31M from Microsemi. It's still being produced and sold.
> You can get it from various electronics distributors for somewhere
> between €900 and €1200[1].
> Some even have it on stock! :-)
> 
> 			Attila Kinali
> 
> [1] https://octopart.com/search?q=SA.31M
> -- 
> It is upon moral qualities that a society is ultimately founded. All 
> the prosperity and technological sophistication in the world is of no 
> use without that foundation.
>                 -- Miss Matheson, The Diamond Age, Neil Stephenson
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