Recent content by Anthony_

http://www.symmetricom.com/products/frequency-references/chip-scale-atomic-clock-csac/SA.45s-CSAC/

Agreed, although you would never know unless you tested it.

Thanks, yes. I am referring to the variation you should expect within the specs for a given crystal oscillator. In other words, if you buy two Seiko VT crystal oscillators, what behaviour will you actually see? You are right about the two clocks example. It is a bad example.

Thank you both for your replies. Yes, I am aware that there is a manufacturing tolerance for the crystal, and then an optimisation of the circuitry for the oscillator. I had assumed that the "frequency tolerance" refers to manufacturing variation across samples, but I was looking for some...

Thank you very much for the reply, much appreciated. Yes, I had seen that paper, but I had missed the part about the temperature effect of different cuts. Here is the specification of a crystal oscillator: Seiko VT-200-F. - "frequency tolerance" +- 20 ppm - turnover temperature 25 degrees C...

Crystal Oscillators -- accuracy versus temperature I have done quite a lot of desk research and spoken to a few manufacturers, but I am still not clear about the specifications for crystal oscillators and I hope someone can help me out. It is a multi-part question. 1) The accuracy of an XO...