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LM4982 - Stereo Headphone Amplifier

Description

The LM4982 is a ground referenced, variable gain audio power amplifier capable of delivering 80mW of continuous average power into a 16Ω single-ended load with less than 1% THD+N from a 3V power supply.

The I2C volume control allows +18 to -76 dB gain settings.

Features

  • Ground referenced outputs I2C Volume and mode controls Available in space-saving micro SMD package Ultra low current shutdown mode Advanced pop & click circuitry eliminates noises during turn-on and turn-off transitions n 1.6.
  • 4.0V operation n No output coupling capacitors, snubber networks, bootstrap capacitors or gain-setting resistors required n Mono/Stereo headphone detect n n n n n.

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www.DataSheet4U.com LM4982 Ground-Referenced, Ultra Low Noise, 80mW Stereo Headphone Amplifier with IntelliSense and I2C Volume Control February 2006 LM4982 Ground-Referenced, Ultra Low Noise, 80mW Stereo Headphone Amplifier with IntelliSense and I2C Volume Control General Description The LM4982 is a ground referenced, variable gain audio power amplifier capable of delivering 80mW of continuous average power into a 16Ω single-ended load with less than 1% THD+N from a 3V power supply. The I2C volume control allows +18 to -76 dB gain settings. The LM4982 utilizes advanced charge pump technology to generate the LM4982’s negative supply voltage. This eliminates the need for output-coupling capacitors typically used with single-ended loads.
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