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Specifications
SKU: 11195807
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| Parameter | Symbol | Min | Typ | Max | Unit | Description |
|---|---|---|---|---|---|---|
| Supply Voltage | Vcc | 2.7 | 5 | 5.5 | V | Operating supply voltage range |
| Quiescent Current | Iq | - | 40 | - | μA | Current consumption in active mode |
| Output Power | Pout | - | 1.2 | - | W | Maximum output power (8Ω load) |
| SNR | - | - | 80 | - | dB | Signal-to-noise ratio |
| THD+N | - | - | 0.1 | - | % | Total harmonic distortion plus noise |
| Input Sensitivity | Vin | 50 | 100 | 150 | mV | Input sensitivity for full output |
| Shutdown Current | Isd | - | 0.1 | - | μA | Current consumption in shutdown mode |
| Operating Temp | Topr | -40 | - | 85 | °C | Operating temperature range |
| Storage Temp | Tstg | -65 | - | 150 | °C | Storage temperature range |
Instructions for KT0803
Power Supply:
- Connect the Vcc pin to a power supply within the range of 2.7V to 5.5V.
- Ensure the power supply is stable and free from significant ripple.
Ground Connection:
- Connect the GND pin to the common ground of the system.
Input Signal:
- Connect the input signal to the IN+ and IN- pins. The input sensitivity is typically 100mV for full output.
- Use a differential input signal for optimal performance.
Output Configuration:
- Connect the speaker or load to the OUT+ and OUT- pins.
- Ensure the load impedance is appropriate for the output power (e.g., 8Ω).
Shutdown Mode:
- To enter shutdown mode, pull the SD pin low. The quiescent current will drop to approximately 0.1μA.
- To resume normal operation, pull the SD pin high.
Thermal Management:
- Ensure adequate heat dissipation if operating at high power levels or in high ambient temperatures.
- Consider using a heatsink if necessary.
PCB Layout:
- Keep the power supply lines short and use decoupling capacitors (e.g., 10μF and 0.1μF) close to the Vcc and GND pins to reduce noise.
- Use a ground plane to minimize interference and improve stability.
Storage and Handling:
- Store the device in a dry environment within the specified storage temperature range.
- Handle with care to avoid damage from electrostatic discharge (ESD).
Testing:
- Before finalizing the design, test the device under various conditions to ensure it meets the required specifications.
- Verify the output quality and performance parameters such as SNR and THD+N.
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