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With excellent performance chip function generator ICL8038, add a small amount of resistive and capacitive components, can produce sine, triangle and square wave, and the frequency of the signal, duty cycle, adjustable distortion sine wave.
Input 12V DC
Frequency range 50-5KHz,
Requires a certain DIY ability, you need to weld the kit yourself!
ICL8038 pin functions:
1 foot, 12 foot: sine waveform adjusting terminal;
2 foot: sine wave output;
3 foot: triangle wave output;
4 foot, 5 foot: the frequency and duty cycle (or waveform asymmetry) adjustment;
6 foot: V +, the positive power supply;
7 foot: offset; 8 foot: frequency adjustment input terminal;
9 foot: square wave output.
This is an open collector output terminal, work should take a load resistor to the corresponding positive power supply terminal from the pin, to get a TTL-compatible square-wave output, the load resistance must be connected to + 5V power supply;
10 foot: timing capacitor terminal;
11 foot: V-, negative power supply terminal or the ground. Use positive and negative power supply, 11 feet to the negative supply, the output waveform are symmetrical with respect to 0V; use a single positive power supply, 11 feet grounded, the output waveform is unipolar, uniform voltage is + VCC / 2;
13 feet, 14 Feet: Empty foot.
The kits are designed for a frequency range is 50-5KHz, two bands with a switch S to switch, RP1 is the frequency adjustment, RP2 is the duty cycle adjustment, RP3 is a sine wave distortion adjustment. Circuit uses 12V single power supply, input from the X1; X2, X3 is a waveform output side, you can use oscilloscope to observe three output waveforms.
1 set function signal generator module electronic kit