The rectangle pulse frequency doubler

Published:2011/6/17 9:01:00 Author:Borg | Keyword: rectangle pulse, frequency doubler | From:SeekIC

In the figure is the rectangle pulse frequency doubler circuit. This circuit is a digital frequency doubler, which consists of a 6-inverting-phaser MC840P, 2 diodes and a capacitor, and its working frequency is 1Hz~100KHz. The input signal of the circuit is a square wave, and the output is an approximately symmetric rectangle wave. The required capacitive reactance of capacitor C at the frequency is 1kΩ. If the required output is a symmetric square wave, we can connect the capacitor with a resistor in serial or parallel way. The output circuit includes the phase inverters of G3, G4, G5 and G6, and they are coupled by the diodes of D1 and D2.



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