The frequency splitter of symmetric output waveforms (μL9020)

Published:2011/6/22 4:29:00 Author:Borg | Keyword: frequency splitter, symmetric output waveforms | From:SeekIC

The figured splitter circuit is triggered when the peak value is in the range of 0.5~5v, no matter whether it is the sine wave or the square wave. The working frequency of the circuit is 40MHz. The input signal of the frequency splitter drives the J-K triggers after it has passed the amplitude limit amplifier Q1, finally, it crosses the buffer Q2 and is output. The transistor Q1 offers the first stage splitter a proper triggering LEV. When the high LEV drives, the capacitor C1 plays a part of current limitation. If the drive LEV is low, we can expand the volume of C1, the the trigger power is increased.



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