i want frequency multiplier with 1.5 times of input frequency. if you have any idea for that please suggest me
You are going to have to provide a bunch more requirements before you can solve this - what is the frequency range? What is the waveform (square, sine ... )? What is the voltage? Does the output waveform need to look like the input waveform?
Like Mike said, and in addition you really shouldn't post the same thing in multiple groups.