Funcation Genrator Circuitusing IC 8038


The ICL8038 is a function generator chip, capable of generating triangular, square , sine, pulse and sawtooth waveforms. From these sine, square & triangular wave forms can be made simultaneously.There is an option to control the parameters like frequency,duty cycle and distortion of these functions.This is the best function generator circuit for a beginner to start with and is of course a must on the work bench of an electronics hobbyist.The circuit here is designed to produce waveforms from 20Hz to 20 kHz.The ICL 8038 has to be operated from a dual power supply.

Circuit Diagram & Part list

Important Points :-
  • The circuit needs a dual power supply. A +15 -15 power supply as shown in the circuit is enough for the purpose.
  • The frequency of the output wave form can be adjusted using R7.It must be a 100K Log POT.
  • The duty cycle can be adjusted using R3 , a 1K POT.
  • The distortion of the wave form can be adjusted using R5 , a 100K POT.
  • Square,triangle & sine waveforms can be obtained simultaneously at pins 9,3,2 respectively.
Download Proteus Design File :- DOWNLOAD
Original Source :- Circuits Today


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