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Frequency Specifications (specifically 8257)

Question asked by rbm on May 18, 2011
Latest reply on Jun 10, 2011 by tabbott
In the 8257D data sheet, the frequency accuracy is

[(time since last adjustment x aging rate)
+ temperature effects + line voltage effects
+ calibration accuracy]

Is this for the internal reference oscillator?

I'm in need of finding the accuracy and stability of the signal source when a highly accurate reference clock is used.