Adding timing jitter in matlab

[A_U_J]

jitter matlab

Hello All,
I am new to Simulink/Matlab and need a small help from the experts:

I need to add timing jitter to my PLL reference clock.I tried adding Gaussian noise Generator output with reference generator output but I am getting only voltage noise instead of timing noise.

Can some one please help?

thanks a lot.

 

[jiangxb]

gaussian jitter matlab

the timing jitter is the variation of period, not amplitude, so randomize the period of reference clock.

 

[A_U_J]

timing jitter

that is precisely my question..i couldnt figure out how to add noise to zero crossings..

 

[A_U_J]

jitter adding matlab

sorry the attachment is already available in :