zhonghan
Junior Member level 3
look the pic I paste. How to specify the interval for generating an eye diagram ?
I think it can not be arbitrary but a multiple of the period of the interested wavefrom. Otherwise the waveform in the second interval can not be exactly superimposed with that in the first interval even without any jitter in the waveform at all. But in practical simulation, we can not estimate the exact period of the output waveform of a PLL. So that the jitter information can be obtained from an eyediagram is not so realible in my opinion.
can someone solve my confusion?
I think it can not be arbitrary but a multiple of the period of the interested wavefrom. Otherwise the waveform in the second interval can not be exactly superimposed with that in the first interval even without any jitter in the waveform at all. But in practical simulation, we can not estimate the exact period of the output waveform of a PLL. So that the jitter information can be obtained from an eyediagram is not so realible in my opinion.
can someone solve my confusion?
