97 Mhz signal conditioning

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lordofentropy

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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.
 
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.
 
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.
 
lordofentropy said:
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.
Click to expand...

Feed it through a single transistor amplifier/switch then to make it a 5V squarewave.
 
Transistor switching LOW at the bottom of this page:



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