Function Generator Using Icl8038 Pdf Apr 2026

: Use the potentiometer between Pins 4 and 5 to ensure the triangle wave is perfectly linear and the square wave has a 50% duty cycle.

potentiometers at Pins 1 and 12 to minimize sine wave harmonics. Pin 1 & 12 : Sine wave adjustment (distortion). Pin 2 : Sine wave output. Pin 3 : Triangle wave output. Pin 4 & 5 : Duty cycle/Frequency adjustment. Pin 8 : Frequency sweep input. Pin 9 : Square wave output. Pin 10 : Timing capacitor. Step-by-Step Calibration Function Generator Using Icl8038 Pdf

: Adjust the main potentiometer connected to Pin 8. The frequency ( ) is roughly calculated as : Use the potentiometer between Pins 4 and

: Triangle wave linearity is approximately 0.1%. Pin 2 : Sine wave output

: Generated by a flip-flop driven by the charging/discharging cycles.

The ICL8038 operates by charging and discharging an external capacitor with two internal current sources. This process creates a linear triangular wave.

) : Connected to Pins 4 and 5 to control the charge/discharge current. : Frequency Control : Adjusts the current to Pin 8. Duty Cycle : Balances RAcap R sub cap A RBcap R sub cap B for symmetry. Distortion Trim : Two 100k Ωcap omega