Digital-frequency-doubler


Posted on Jul 12, 2012

The circuit doubles tbe frequency of a digital signal by operating on botb signal edges. Each transition causes exclusive-OR gate IC1 to produce a pulse, which clocks flip-flop IC3 after propagating through buffers IC2C and IC2B. Ifyou remove capacitor Cl, tbe circuit produces narrow output pulses.


Digital-frequency-doubler
Click here to download the full size of the above Circuit.

By including Cl, you can obtain a desired duty cycle for a given input frequency fin.




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