The AA4006 is a Class AB stereo audio power ampli-fier with headphone driver, which can deliver 2.7Winto 3Ω speakers with 5.0V power supply and THD+Nless than 10%. It is designed specially for notebook PCand portable media player applications.The AA4006 features stereo full differential input or 2sets of stereo single-ended audio input. There are 4 dif-ferent gain settings at BTL mode -6dB, 10dB, 15.6dBand 21.6dB, changed by setting GAIN0, GAIN1 pins.At SE mode, the gain is fixed 4.1dB. The AA4006 can amplify square waveform beep inputsignal from BEEP_IN pin and its' output can alwaysreach BTL terminal, masking all other audio inputsregardless of whether the chip is in shutdown, SE orBTL mode. The AA4006 is available in TSSOP-24 (EDP) package.
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