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Altera_Forum
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12 years ago

Clock Frequency Max

Hi, this may be a stupid question so I ask for your forgiveness in advance: I have an application where I have two square wave inputs at 300 MHz; I wish to measure the time delay between the r...
Altera_Forum's avatar
Altera_Forum
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12 years ago

The method of xor suggested by Dave should be ok for phase difference.

Another draconian method to measure absolute delay is to have two FIR filters of same coefficients (just any symmetric set). Then run each FIR on its clock using impulse input. Measure the delay of peaks e.g. in the scope.