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Data Logging / Acquisition Circuits Page 1a Data Acquisition / Logging: #-CD-KL-ST-Z Last Updated on:
Friday, August 29, 2008 02:34 PM
Circuits Designed by Dave Johnson, P.E. :
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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