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Clock Accuracy and Multiplication (Read 3040 times)
gavin
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Clock Accuracy and Multiplication
Jul 22nd, 2010, 7:51am
 
Hello:

If I have a 25M oscillator with an accuracy of 1PPM and I feed it into a PLL clock multiplier (x5) to generate an 125M signal, what will be the accuarcy of the 125M signal?

Thanks,
Gavin
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ACWWong
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Re: Clock Accuracy and Multiplication
Reply #1 - Jul 22nd, 2010, 10:55am
 
assuming the PLL is doing its job properly, it should be 1ppm on 125M.
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gavin
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Re: Clock Accuracy and Multiplication
Reply #2 - Jul 23rd, 2010, 9:38am
 
Thanks!

-Gavin
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