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Q&A HMC988 Jitter Density unit

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HMC988 Jitter Density unit

Hiroyuki.D on Dec 14, 2018

Hi

I'd like to know what asec/√Hz is. We can see the unit in Table1 Jitter density on HMC988LP3E Data Sheet.

Regards,

Hiroyuki

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jdobler
Dec 14, 2018 in reply to Hiroyuki.D +1 verified
From the datasheet: To calculate Jitter Density = (√2*10^((Floor phase noise)/20)/2π)*(1/frequency) For example, Jitter Density @ 500 MHz = (√2*10^(-168/20)/2π)*(1/500000000)

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0 Hiroyuki.D on Dec 14, 2018 10:11 AM

Sorry. I found the note in data sheet.

Hiroyuki
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+1 jdobler

on Dec 14, 2018 4:15 PM in reply to Hiroyuki.D
From the datasheet:

To calculate Jitter Density = (√2*10^((Floor phase noise)/20)/2π)*(1/frequency)

For example, Jitter Density@ 500 MHz = (√2*10^(-168/20)/2π)*(1/500000000)
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