With excellent performance ASIC 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.
Parameters:
Model: ICL8038
Input: 12V DC
Frequency range: 50-5KHz
Size: 58mm*44mm*2mm
Weight: 26g
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;
12. feet,
13 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.
Notice:
Requires a certain DIY ability, you need to weld the kit yourself.