DFF divider for fixed duty

[sj95]

Dear all:

I have a clock for duty cycle 30%, if I use DFF divider to get a 1/64 frequency,
the new clock duty cycle becomes 50%.

I need keep the original duty cycle, any method or any FF can help me for this issue?

Thank you very much.

 

[keith1200rs]

You could easily make a divider to produce a fixed duty cycle but not a divider to reproduce an 'unknown' duty cycle. Reproducing an unknown duty cycle would involve measuring it, for example with a clock a lot higher than your starting clock.


Keith