Just any normal freq.sq.wave upto a few kHz..,feed it into inputs of two different gates of 2 different logic families..eg. one an FCTLSttl...other an HCTLSttl or other..,their outputs gated either with ( AND/NOR/EX-OR) in anyone of these ,..one should see some nS wide pulse on output.. The difference in their timing & voltage thresholds can determine ones target pulse... No need for MHz/GHz clocks etc.
Just any normal
freq.sq.wave upto a few kHz..,feed it into inputs of two different gates of 2 different logic families..eg. one an FCTLSttl...other an HCTLSttl or other..,their outputs gated either with ( AND/NOR/EX-OR) in anyone of these ,..one should see some nS wide pulse on output..
The difference in their timing & voltage thresholds can determine ones target pulse...
No need for MHz/GHz clocks etc.