97 Mhz signal conditioning

[lordofentropy]

Hello All,

I have a 97 Mhz sine wave (~5 Volts) that I want to make into a square wave to send into some D flip flops. However, it would appear this signals frequency is to much for a schmitt trigger, or even a comparator as far as I can tell. Any suggestions?
Thank you.

 

[Nigel Goodwin]

As it's 5V, won't the flip flops just accept it directly?.

PLL on VHF radios doesn't seem to have anything special on the local oscillator.

 

[lordofentropy]

Yes the flip flop will accept it directly, however the flip flops are positive edge trigger, and I am having trouble with the waveform and I feel it would perform and stabilize better if I conditioned it into a square wave and inputted that.

 

[Nigel Goodwin]

Yes the flip flop will accept it directly, however the flip flops are positive edge trigger, and I am having trouble with the waveform and I feel it would perform and stabilize better if I conditioned it into a square wave and inputted that.

Feed it through a single transistor amplifier/switch then to make it a 5V squarewave.

 

[lordofentropy]

Feeding it through a single transistor is not going to square the wave

 

[Nigel Goodwin]

Feeding it through a single transistor is not going to square the wave

Why would you think that?.

 

[lordofentropy]

Can you post a image/schematic of what your talking about so that I can try it please?

 

[Nigel Goodwin]

Transistor switching LOW at the bottom of this page:



You might need a resistor from base to emitter as well.

 

[lordofentropy]

Tried it and it did not work.