How to Use XR2206 HLF 224A8: Examples, Pinouts, and Specs

The XR2206 is a monolithic function generator integrated circuit (IC) capable of producing high-quality sine, square, triangle, ramp, and pulse waveforms of high stability and accuracy. The versatility of the XR2206 makes it an ideal solution for applications in communication systems, signal processing, instrumentation, and function generator equipment.

• Signal generation for testing and troubleshooting
• Educational tools for electronic laboratories
• Function generators in electronic test equipment
• Modulation and demodulation in communication systems

• Supply Voltage (Vcc): 10V to 26V
• Output Frequency Range: 0.01Hz to 1MHz
• Frequency Adjustment Range: 2000:1
• Temperature Stability: 20ppm/°C
• Line Regulation: 0.05%/V
• Output Waveforms: Sine, Square, Triangle, Ramp, and Pulse

1. Connect the power supply to pins 4 (V+) and 12 (V-) with the appropriate voltage levels.
2. Attach a timing resistor to pin 9 and a timing capacitor to ground to set the frequency range.
3. Set the desired waveform shape by adjusting the voltage on pin 2 (WAVE).
4. Use pin 10 (OUT) to obtain the output waveform.
5. Optionally, use pins 6 (FM) and 7 (AM) for frequency and amplitude modulation, respectively.

• Ensure that the power supply voltage is within the specified range to prevent damage.
• Use a heat sink if operating near maximum power ratings to dissipate heat.
• Keep the timing capacitor and resistor close to the IC to minimize noise and interference.
• Use a decoupling capacitor near the power supply pins to filter out voltage spikes.

• No Output Signal: Check power supply connections and ensure that the timing components are properly connected.
• Distorted Waveforms: Verify that the load connected to the output is within the IC's driving capability.
• Unstable Frequency: Ensure that the timing capacitor and resistor values are correct and that there is no interference.

• Double-check all connections and component values.
• Use an oscilloscope to monitor the output waveform for troubleshooting.
• Replace timing components if the frequency is not within the expected range.

Q: Can the XR2206 be used with a single supply voltage? A: Yes, the XR2206 can operate with a single supply voltage, but a dual supply can provide a greater output swing and better performance.

Q: What is the maximum frequency that can be generated? A: The XR2206 can generate frequencies up to 1MHz.

Q: How can I adjust the frequency range? A: The frequency range can be adjusted by changing the values of the timing resistor and capacitor connected to pin 9.

Below is an example code snippet for controlling the XR2206 with an Arduino UNO to produce a 1kHz sine wave. This assumes additional circuitry to interface the Arduino with the XR2206.

// Define the XR2206 control pins
const int wavePin = 3; // Connected to pin 2 (WAVE) of XR2206

void setup() {
  pinMode(wavePin, OUTPUT);
  // Set the waveform shape to sine wave
  analogWrite(wavePin, 128); // 128 corresponds to mid-range for sine wave
}

void loop() {
  // The XR2206 will continuously output the 1kHz sine wave
  // Additional code can be added here to change the waveform dynamically
}

Note: The above code is a simple illustration. In practice, you would need a digital-to-analog converter (DAC) or a PWM to analog filter circuit to properly control the WAVE pin for waveform selection.