Instructions:

1. Supply Voltage:

   • Connect the supply voltage (VDD) between 2.7V and 5.5V to the VDD pin.
   • Ensure a stable power supply to avoid audio distortion or damage.

2. Ground Connection:

   • Connect the ground (GND) pin to the system ground to ensure proper operation.

3. Input Signal:

   • Apply the audio input signal to the IN+ and IN- pins.
   • The typical input sensitivity is 200mV. Adjust the input level to match this value for optimal performance.

4. Output Configuration:

   • Connect the speaker to the OUT+ and OUT- pins.
   • The output power is typically 1.5W into an 8Ω load.

5. Standby Mode:

   • To enter standby mode, set the STBY pin to a high level.
   • The standby current is approximately 20μA.

6. Shutdown Mode:

   • To enter shutdown mode, set the SD pin to a high level.
   • The shutdown current is approximately 1μA.

7. Thermal Management:

   • The device has built-in thermal protection that activates at approximately 150°C.
   • Ensure adequate heat dissipation to prevent thermal shutdown.

8. Signal-to-Noise Ratio:

   • The SNR is typically 95dB, providing a clear and clean audio output.

9. Total Harmonic Distortion:

   • The THD is typically 0.1% at 1kHz, 1W, and 8Ω, ensuring high-quality audio reproduction.

10. PCB Layout:

    • Use a well-designed PCB layout with short traces and proper grounding to minimize noise and interference.

11. Capacitors:

    • Place decoupling capacitors close to the VDD and GND pins to filter out noise and stabilize the power supply.

12. Testing:

    • Before finalizing the design, test the circuit under various conditions to ensure reliable operation.