Quoting from a white paper on their site:
"it uses a tiny hollowed-out silicon cube filled with cesium gas."
On 01/18/11 20:17, paul swed wrote:
Quick question is this a rb reference.
Looked at the symetricom site they never actually say or I missed it.
On Tue, Jan 18, 2011 at 2:37 PM,<[email protected]> wrote:
Here is a link to the press release with more technical details and
pictures:
_
http://www.eetimes.com/electronics-news/4212176/Chip-scale-atomic-clock-app
roaches-performance-of-modules-2_
(
http://www.eetimes.com/electronics-news/4212176/Chip-scale-atomic-clock-approaches-performance-of-modules-2
)
In a message dated 1/18/2011 11:32:33 Pacific Standard Time,
[email protected] writes:
Hi Mark:
I got the idea that it's a Rubidium clock.
Have Fun,
Brooke Clarke
http://www.PRC68.com
Mark Spencer wrote:
The long term aging spec is interesting to me, as a cesium physics
package is a
primary standard wouldn't there be an ultimate limit to the total long
term
aging ? (I took a quick glance at the full data sheet and didn't see
any
reference to this.)
----- Original Message ----
From: Julien Goodwin<[email protected]>
To: Discussion of precise time and frequency
measurement<[email protected]>
Sent: Tue, January 18, 2011 8:04:20 AM
Subject: Re: [time-nuts] Symmetricom Launches CSAC Product for Precise
Timing
and Synchronization
On 19/01/11 02:35, Pierpaolo Bernardi wrote:
Though this could be of interest...
http://www.insidegnss.com/node/2446
"The SA.45s reportedly provides ... short-term stability (Allan
Deviation) of 2E-10 @ 1 sec, long-term aging of 3E-10/month"
> From the data sheet of the bigger Rubidium micro-clocks:
SA.33/35m:
1 Sec stability-<3E-11
1 month aging - +/1 1E-10
Neat, but only really of benefit to *really* space/weight/power critical
devices.
"The cesium atoms are “excited,” or heated to a vapor state by a beam
generated from a vertical-cavity surface emitting laser (VCSEL) that
passes between upper and lower polymide heater/suspension strips. The
VCSEL was designed by Sandia Labs, one of Symmetricom’s partners on the
CSAC team."
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