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Audio Power Amplifier with Built-in AGC AN12972A

Overview:

Audio Power Amplifier with Built-in AGC AN12972A  Increasing volume settings when using small speakers  results in distortion as the output signal distorts at high  gain settings. The AN12972A audio power amplifier  features built-in automatic gain control (AGC) circuitry  to minimize distortion by decreasing too high an input  gain level. Using a low-noise amp minimizes noise even  when the speaker is placed close to an ear.

Features:
  • Built-in AGC circuitry if an input level is too high, the  AGC is activated to minimize distortion, raising the  overall volume level and reducing noise.
  • Low noise amplifier.
  • Input circuit format accommodates different input signals (mixing possible)
  • Standby and speaker mute functions.
  • Small package.
  • Cellular phones, PDAs and other mobile equipment
Circuit Diagram:
Audio Power Amplifier with Built-in AGC AN12972A 


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