Continue to Site

# Why clock is having 50% duty cycle?..

Status
Not open for further replies.

#### kumar_eee

Why clock is having 50% duty cycle?..

K.Kumar

In what context...you are saying 50% duty cycle?? That is not a way to ask any question........

Clock's have a 50% duty cycle because it gives a synchronized rising and falling edge of exactly double the base frequency. Most devices can run on clocks that have a duty cycle that is not 50% however the pulses may be too close together for some logic to detect.
For example a 1mhz clock at 10% duty cycle has a high pulse duration equivilant to a 20mhz clock at 50% duty cycle, and a low pulse duration equivilant to a 500khz clock at 50% duty cycle.
Hope this helps.

kumar_eee said:
Why clock is having 50% duty cycle?..

K.Kumar
digital systems should use perfect square wave to indicate 1 and o's...
for a perfect square wave,the time period for positive pulse (Ton) should be equal to time period for negative pulse(Toff)...there exists a formula to calculate duty cycle(let it be T) T= Ton/(Ton+Toff)
if Ton is equal to Toff means after substition duty cycle will be 50%...
hope it helps...if this is not the answer u are looking ..then make me tom understand ur quastion by redefining it...

duty cycle is given by T= Ton/(Ton+Toff)
Clock's have a 50% duty cycle because it gives a synchronized rising and falling edge of exactly double the base frequency. synchronisation is the main reason

Status
Not open for further replies.