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How do make the clock 25% duty cycle with jitter capability

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How do make the clock 25% duty cycle. I am looking for creating 25% duty cycle ( or a certain High pulse width ) clock where I can add random and deterministic jitter. 

Hi Andrew,

My apology for not starting a new thread and just replying to an really old thread with the above question. Here I am starting a new thread on this. 

Your Answer on this :

In this case I'd suggest you use a "bit" source (the Source Type being bit):

It's not quite working. Here's what I have used : 

Since the fall edge sloe is not modified, you get a distorted waveform. How do we fix it ?


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