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Measurements >> Phase Noise and Jitter Measurements >> Phase noise measurement using E5052B
https://designers-guide.org/forum/YaBB.pl?num=1566232350

Message started by deba on Aug 19^th, 2019, 9:32am

Title: Phase noise measurement using E5052B
Post by deba on Aug 19^th, 2019, 9:32am

Hi All,

E5052B from Keysight uses "PLL method" to measure phase noise. I am measuring the phase noise of a 100 MHz square wave clock using this instrument. The effective offset range of the instrument is mentioned as 10 MHz for a 100 MHz clock, roughly 10% of the input clock frequency.

I am interested in phase noise beyond 10 MHz. What does the instrument measures at these offset frequencies? Does it show amplitude modulation(AM) sidebands along with phase modulation(PM) sidebands?

Title: Re: Phase noise measurement using E5052B
Post by Horror Vacui on Sep 18^th, 2019, 5:01am

10MHz away from the 100MHz signal you should see the noise floor...