As for a free-run oscillator, the jitter accumulates over time. The wavescope calculates jitter in a certain time windows. My question is if I want to know the rms jitter of a oscillator in a time range of ,maybe 4us , then what the is the frequency range for the integral of phase noise in reponse. (mainly, the lower limit of integral).

Thank you, and hope for some detailed search information if possible.