Hello everyone, let me address the below claims and commentary which was posted without first consulting with us. Microsemi has recently seen a slightly higher failure rate of the CSAC oscillators than expected. A small percentage of our customers have been adversely affected by this issue. We have been, and will continue to take care of this issue when it happens to units we sold by doing a warranty exchange of the CSAC for the affected customer unit, even if it should fall out of its normal warranty period. We believe in supporting our customers to the maximum extent possible, and of course want to deliver a product that has the highest level of quality possible. That said, we must remember that the CSAC technology is a ground breaking, never-before-done in commercial quantities, absolutely new type of oscillator technology, and being at the forefront of such a technology sometimes means there is a bit of a learning curve to deal with. This is one of the main reasons why no one else in the world besides Microsemi makes CSAC type products for commercial sale. So all in all, if a customer unit should get affected by this problem then the issue will be addressed by us and Microsemi with a quick turn around and a "no questions asked" approach, and we hope that this approach sets us positively apart from the competition. Lastly, we received the below comments/explanation from Microsemi about this issue which we have permission to share with you, and this should help alleviate the problem for new orders. Sincerely, Said **************************************************************************** **************************************** Some Symmetricom (now Microsemi) Chip Scale Atomic Clocks have shown a failure mode that will manifest itself as an inability of the clock to achieve atomic lock. If the CSAC’s telemetry string is monitored, the failure mode will show up as a Status Level 8. Microsemi’s investigation into the problem uncovered three distinct root causes, although the symptom the user observes is always a Status Level 8, regardless of which root cause is the underlying issue. It is important to note that all three root causes are process issues, not design issues. All three root causes have been addressed, and Microsemi is currently producing CSAC’s with all three fixes implemented. A full re-qualification of the CSAC is also being done, to ensure that the fixes are effective. CSAC’ s already in the field that exhibit this failure mode have been, and will continue to be, replaced under warranty. **************************************************************************** ****************************************
In a message dated 4/24/2014 10:16:25 Pacific Daylight Time, [email protected] writes: Affected Products: Jackson Labs or Symmetricom time/frequency reference boards based on Symmetricom chip scale atomic clock _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
