making 50%duty cycle

[sarah.sh]

do u know how 2 make a 50% duty cycle with out changing the frequency?

 

[KMoffett]

Does it need to operate at one frequeqncy, or at many different frequencies? How accurate does the 50% have to be?

Ken

 

[sarah.sh]

it must work between 3 to 30 Mhz in diffrent frequency.i want to use a NE564(pll) and it need a signal with 50% duty sycle in its input.i want to make a synthesizer with this ic but my counter output hasnt the 50% duty cycle

 

[MOSFET KILLER]

What is the duty cycle of the output, above or below 50%?

 

[crutschow]

The easiest way is just to generate a 6MHz to 60MHz signal from your counter and use a divide-by-two toggle flip-flop to get a 3MHz to 30MHz, 50% duty-cycle signal.

 

[sarah.sh]

less than 50%

 

[sarah.sh]

u know i use an integer counter and i cant for example divide by 7.5 to make 6 to 60 Mhz