TPA6120A2DWPG4 datasheet by Texas Instruments

TPA6120A2DWPG4 Frequently Asked Questions (FAQs)

• What is the recommended power supply decoupling for the TPA6120A2DWPG4?
  TI recommends using a 10uF ceramic capacitor in parallel with a 100nF ceramic capacitor, placed as close as possible to the power pins (VCC and GND) to ensure stable operation.
• How do I optimize the gain setting for my specific application?
  The gain setting depends on the input signal level and the desired output power. TI provides a gain calculation formula in the datasheet. For a quick estimate, use the online TI Audio Amplifier Gain Calculator tool.
• What is the maximum power dissipation of the TPA6120A2DWPG4?
  The maximum power dissipation (PD) is dependent on the ambient temperature (TA) and the thermal resistance (θJA). For the TPA6120A2DWPG4, PD = 2.5W, θJA = 45°C/W, and TA = 25°C. Use the thermal calculation formula in the datasheet to determine the maximum power dissipation for your specific application.
• How do I ensure EMI compliance with the TPA6120A2DWPG4?
  To minimize EMI, use a shielded cable for the audio input, keep the PCB layout compact, and use a common-mode choke or ferrite bead on the output lines. Additionally, ensure proper grounding and decoupling of the power supply.
• Can I use the TPA6120A2DWPG4 in a bridged configuration?
  Yes, the TPA6120A2DWPG4 can be used in a bridged configuration to increase the output power. However, this requires additional external components and careful PCB layout to ensure proper operation.