LM4857

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An audio power amplifier, connected to the 3.3V power supply.

  • 0.5W stereo speaker output, used for the main speakers.
  • 33mW stereo headphone output (32 ohms), for the headphones.
  • 43mW mono earpiece output, for the earpiece.
  • Line-out, unused.

Datasheet.

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An audio power amplifier, connected to the 3.3V power supply.

  • 0.5W stereo speaker output, used for the main speakers.
  • 33mW stereo headphone output (32 ohms), for the headphones.
  • 43mW mono earpiece output, for the earpiece.
  • Line-out, unused.

Datasheet.