Said, what is the operating principle of the Wavecrest Jitter Analyzer? Is it a sampling scope like the ones Agilent and Tektronix offer? How does it compare to them? I've googled it but I only found a Chinese site with little information in English. Another advantage I see for time-based measurements is that you can go arbitrarily low in offset from the carrier. In the 5052B you have a PLL with non-zero bandwidth, so below some offset you probably get an optimistic estimate because the PLL is actually following the noise. Another item to bear in mind, if my understanding is right, is that integrating the phase noise plot gives you the rms jitter between your noisy waveform and the perfect sinewave, or rather an approximation of it, which is what comes out of the PLL in say the 5052B. A sampling scope typically measures the time jitter between two (noisy) rising edges of a clock waveform. In the simplistic case of white phase noise this should give you a factor sqrt(2) more jitter than the loose PLL measurement, right? Thanks again, Javier
_______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
