Ken Kundert wrote on Jun 30th, 2010, 9:20am:I am not familiar with Oscillator Tolerance. Tolerance to what?
Crystal oscillators typically specify a nominal frequency as well as a "tolerance" about that nominal frequency since no oscillator can output a single frequency perfectly. For example, if I want to buy a 25MHz oscillator I will find the manufacturer might have 25MHz +/- 50PPM while another might have +/- 1PPM (at a higher cost of course). The 50PPM and 1PPM is what is called the tolerance of the oscillator.
Ken Kundert wrote on Jun 30th, 2010, 9:20am:I am also not seeing a clearly defined question. Perhaps you can further clarify what you are looking for.
What I was trying to understand was the relationship (if any) between the Jitter specification (typically provided in ps rms in the digital world) of an oscillator and the Tolerance specification (typically measured in PPM or parts per million).
My second post was some things I found searching on the internet which somewhat answered my question - they are measuring two different things. But, not being an expert I was looking to see others thought.
-Gavin