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The precise gated oscillator

2016-08-30 00:06  
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The precise gated oscillator
The precise gated oscillator
Many gated oscillator circuit generates wave of which the first period tends to be too long or too short, and not stable, too. In the figure is a gated oscillator which is made of a dual-trigger circuit 74SL221, whose wave is stable and pure, and its edge is delivered from one stage to the next stage, so it is precise. The two triggers have the same functions, and their oscillating frequencies are about l/1.4R1·Cl and 1/1.4R2·C2, the maximum value of the actual frequency is 10MHz. The wave outline circuit is as follows: