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Old 15th July 2003, 07:40 AM   #1
bocka is offline bocka  Germany
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Default Low jitter crystal

I'm looking for a low jitter crystal, no oscillator. Has anyone experience with different manufacturers? Commonly used crystals are from Hosonic most often. Are there better types available, maybe Saronix? Has anyone used these parts?
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Old 24th July 2003, 08:29 AM   #2
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Can you find any data about the crystals on the Internet? For a given frequency, the one with the highest ratio between the reactance of C1 and R (that is, the highest 1/(2*pi*f*C1*R)) should give the lowest close-in phase noise and therefore in theory the lowest low-modulation-frequency jitter. I could imagine that the oscillator noise floor has more effect than the crystal on the jitter, though. I have no experience with these matters.
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Old 24th July 2003, 09:53 AM   #3
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simple rule of thumb: if you can get the same frequency in different cases, go for the biggest case!
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