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Digital Circuits
Designed by David A. Johnson, P.E.
Last Updated on: Thursday, January 01, 2009 06:56 AM

Master Category List - Dave's Circuits
 
  • AUDIO FREQUENCY DIGITAL NOISE GENERATOR
    When you need to test an audio circuit with broadband noise, this circuit works great. It uses just three inexpensive C-MOS ICs that generate a series of output pulses whose widths vary randomly. I included a level control pot.

 
  • C-MOS INVERTER MAKES LOW POWER AMP
    With the addition of one resistor and a capacitor, some common logic ICs can be transformed from digital to analog duties.  This circuit outlines some the features to expect from different inverter ICs.
  • CIRCUIT FORMS DIVIDE BY 1.5 COUNTER
    Two inexpensive ICs divide a TTL clock signal by 1.5. By following the circuit with another flip/flop, you could also generate a divide by three function.


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Master Category List - Dave's Circuits
 

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