Function Generator Kit with XR2206 /Square Output 1Hz-1MHz Signal Generator Adjustable Frequency Amplitude XR2206 (Need DIY)

SKU: FA1060
IC Controller

XR2206 Precision Function Generator
Voltage Supply

9V – 12V DC (Standard 9V Battery or DC adapter)
Waveforms

Sine, Triangle, Square
Frequency Range

1Hz – 1MHz
Impedance

600 Ohm + 10%
Sine Wave

Amplitude: 0-3V (at 9V DC input); Distortion: < 1%
Triangle Wave

Amplitude: 0-3V (at 9V DC input); Linearity: < 1%
Square Wave

Amplitude: 8V (at 9V DC input); Rise Time: < 50ns
Product Description
The XR2206 Function Generator Kit is an essential, high-utility tool for anyone involved in electronic testing, circuit design, or STEM education. Based on the proven XR2206 monolithic function generator integrated circuit, this kit allows you to build a versatile signal source capable of producing high-quality Sine, Triangle, and Square waves.
Spanning a wide frequency range from 1Hz to 1MHz, this generator is perfect for testing audio equipment, calibrating sensors, or serving as a clock source for digital circuits. This is a DIY kit, meaning it arrives with all necessary high-quality components, a professional PCB, and a clear acrylic protective case. It offers a rewarding assembly experience for students and makers, while providing a reliable piece of benchtop equipment for professional troubleshooting.
Key Features
  • Triple Waveform Output: Generates Sine, Triangle, and Square waves to cover various testing scenarios.
  • Wide Frequency Range: Adjustable from 1Hz up to 1MHz with high stability and low distortion.
  • Dual Adjustment Controls: Features independent potentiometers for Coarse/Fine Frequency and Amplitude tuning.
  • Precision Output: The Sine wave output features low distortion (typically 1%), while the Square wave provides fast rise/fall times for digital triggering.
  • Compact & Protected: Includes a transparent acrylic shell that protects the internal components while maintaining a professional aesthetic.
  • Educational Value: An excellent project for learning about oscillation, waveform generation, and through-hole soldering techniques.
Usage Instructions
  1. Assembly (DIY): Solder the components onto the PCB according to the silk-screen markings. Start with the lowest-profile components (resistors/diodes) and move to taller components (capacitors/potentiometers).
  2. Power Connection: Connect a 9V-12V DC power source to the input jack. The onboard LED will illuminate to indicate power status.
  3. Waveform Selection: Use the onboard jumper headers to switch between Sine/Triangle output. Square wave is typically available on a dedicated output terminal.
  4. Frequency Tuning:
    • Select the desired frequency range using the multi-position switch/jumper.
    • Use the “Coarse” knob for large adjustments and the “Fine” knob to dial in the exact frequency.
  5. Amplitude Tuning: Adjust the amplitude knob to set the output voltage level suitable for your target circuit.
  6. Signal Output: Connect your oscilloscope or target circuit to the output terminals using BNC-to-Alligator clips or standard jumper wires.
Q: Does this kit come pre-assembled?

No. This is a DIY kit. It requires soldering and basic assembly. It is an excellent project for those looking to practice their electronics assembly skills.

Q: Can I power this with a 5V USB port?

No. The XR2206 requires a minimum of 9V DC to function correctly and provide a stable output. Using 12V DC is recommended for the best signal amplitude and stability.

Q: Why is my Square wave amplitude higher than the Sine wave?

This is normal behavior for the XR2206. The Square wave is an open-collector output designed for digital logic levels (close to the input voltage), whereas the Sine and Triangle waves are processed through internal buffers for lower distortion.

Q: Is this suitable for business/educational bulk purchasing?

Absolutely. This kit is a staple in university electronics labs and vocational training centers. We offer bulk pricing for educational institutions and businesses looking to equip multiple workstations.

Q: What is the purpose of the transparent case?

The acrylic case prevents accidental short-circuits during use on a crowded workbench and protects the potentiometers from dust while allowing you to see the internal craftsmanship.

Q: Can it generate signals above 1MHz?
The XR2206 is rated for 1MHz. While it may oscillate slightly higher, the waveform quality (especially Sine) will degrade significantly beyond the 1MHz threshold.

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