hi,

i have a pulse that has literally 100% duty ratio..i need a duty ratio of 50..how can i do it..

i have to feed this pulse to input of phase detector..so need 50 duty cycle..

hi..

my pulse goes from frequency divider..so duty ratio is important..any idea?

PLL and frequency multiplication is the classic way of doing this.

If you have either a high frequency oscillator or can create one there are some digital counter tricks to get what you want:

Count the period of the wave, divide by 2 and use that to create a sort of 50% cycle wave.

Analog techniques -- LPF the signal to the fundamental sinusoid. The amplify back to a square wve.

some ideas