TDA7264A datasheet by STMicroelectronics

TDA7264A Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for the TDA7264A to minimize noise and EMI?
  A good PCB layout for the TDA7264A involves keeping the audio signal paths as short as possible, using a ground plane, and placing decoupling capacitors close to the IC. Additionally, it's recommended to keep the power supply lines away from the audio signal lines and to use a common mode filter to reduce EMI.
• How do I choose the right input and output coupling capacitors for the TDA7264A?
  The choice of input and output coupling capacitors depends on the frequency response and impedance of the audio signal. A general rule of thumb is to choose capacitors with a high capacitance value (e.g. 10uF) and a low equivalent series resistance (ESR) to minimize signal attenuation and distortion.
• What is the maximum power dissipation of the TDA7264A and how do I ensure it doesn't overheat?
  The maximum power dissipation of the TDA7264A is 2.5W. To ensure it doesn't overheat, it's recommended to provide a heat sink or a thermal pad, and to keep the ambient temperature below 70°C. Additionally, the IC should be mounted on a PCB with a good thermal conductivity.
• Can I use the TDA7264A as a bridge-tied load (BTL) amplifier?
  No, the TDA7264A is not designed to be used as a bridge-tied load (BTL) amplifier. It's a single-ended amplifier and should be used with a single speaker or load.
• How do I adjust the gain of the TDA7264A?
  The gain of the TDA7264A can be adjusted by changing the value of the feedback resistors (Rf) and the input resistors (Ri). A higher gain can be achieved by increasing the value of Rf and decreasing the value of Ri, and vice versa.