Oscillator Circuit Using Watch Crystal

  
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This is a design circuit for a couple circuits that can use to produce a 32. 768 KHz square wave from a common watch crystal. This is a simple form design circuit. This is the figure of the circuit. The output can be fed to a 15 stage binary counter to obtain a 1 second square wave. The circuit on the left using the 4069 inverter is recommended ove
Oscillator Circuit Using Watch Crystal - schematic

r the transistor circuit and produces a better waveform. The single transistor circuit produces more of a ramping waveform but the output swings the full supply voltage range so it will easily drive the input to a CMOS binary counter.



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