Specifications
SKU: 343830
Serial Bus Controlled Audio Processor
Parameter | Symbol | Min | Typ | Max | Unit | Description |
---|---|---|---|---|---|---|
Supply Voltage | Vcc | 4.5 | 12 | 18 | V | Operating supply voltage range |
Quiescent Current | IQ | - | 30 | - | mA | Current consumption at no load (Vcc = 12V) |
Output Power | POM | - | 20 | - | W | Maximum output power into 4Ω load (THD = 10%) |
Total Harmonic Distortion | THD | - | 0.5 | - | % | Typical distortion at 1kHz, 1W output |
Signal-to-Noise Ratio | SNR | - | 90 | - | dB | Signal-to-noise ratio at 1kHz |
Input Sensitivity | VS | - | 250 | - | mVrms | Input sensitivity for rated output |
Input Impedance | Zin | - | 47 | - | kΩ | Input impedance at 1kHz |
Frequency Response | fR | 20 | - | 20k | Hz | Flat frequency response range |
Thermal Shutdown | TSD | - | 150 | - | °C | Temperature at which thermal shutdown occurs |
Storage Temperature | Tstg | -40 | - | 125 | °C | Temperature range for storage and operation |
Instructions for Using TDA7310
Supply Voltage:
- Ensure the supply voltage is within the specified range (4.5V to 18V). Use a stable power source to avoid voltage fluctuations.
Heat Dissipation:
- The TDA7310 can dissipate significant heat, especially at high power levels. Mount it on a heatsink with adequate surface area to maintain safe operating temperatures.
Input Signal:
- Connect the input signal to the IN+ and IN- pins. The input sensitivity is typically 250mVrms for rated output. Adjust the input level to match this sensitivity to avoid clipping or underdriving the amplifier.
Output Configuration:
- Connect the output to a 4Ω speaker for optimal performance. Ensure the speaker is rated for the maximum output power to prevent damage.
Thermal Protection:
- The device has built-in thermal protection that will shut down the amplifier if the temperature exceeds 150°C. Ensure proper ventilation and heatsinking to prevent thermal shutdown.
Power-On Sequence:
- Apply the supply voltage before connecting the input signal to avoid transient issues. Similarly, disconnect the input signal before removing the supply voltage.
Grounding:
- Ensure a common ground connection between the power supply, input source, and speaker to prevent ground loops and noise.
Capacitors:
- Use bypass capacitors (typically 100nF and 10μF) close to the Vcc and GND pins to filter out any supply line noise and ensure stable operation.
PCB Layout:
- Design the PCB layout with wide traces for power and ground to minimize resistance and inductance. Keep signal traces short to reduce noise pickup.
Testing:
- After assembly, test the amplifier with a known good signal and load to verify proper operation. Check for any signs of overheating or distortion.
By following these guidelines, you can ensure reliable and efficient operation of the TDA7310 audio amplifier.
(For reference only)Inquiry - TDA7310