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MC34119 - LOW POWER AUDIO AMPLIFIER

General Description

The UTC MC34119 is a low power audio amplifier IC intended for the telephone applications, such as in speakerphones.

It provides differential speaker outputs to maximize output swing at low supply voltages.

Coupling capacitor to the speaker is not required.

Key Features

  • S.
  • Wide operating supply voltage: VCC=2V~16V.
  • Low quiescent supply current (ICC=2.7mA, typ).
  • Medium power output over 250mW at VCC=6V, RL=32Ω, THD＜10%.
  • Load impedance range (8Ω~100Ω).
  • Low total harmonic distortion (0.5% typ).
  • Mute function (ICC=65μA, typ).
  • Minimum number of external parts required.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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UNISONIC TECHNOLOGIES CO., LTD MC34119 LINEAR INTEGRATED CIRCUIT LOW POWER AUDIO AMPLIFIER  DESCRIPTION The UTC MC34119 is a low power audio amplifier IC intended for the telephone applications, such as in speakerphones. It provides differential speaker outputs to maximize output swing at low supply voltages. Coupling capacitor to the speaker is not required. Open loop gain is 80dB, and the closed loop gain is set with two external resistors. The Mute pin permits powering down and/or muting the input signal.  FEATURES * Wide operating supply voltage: VCC=2V~16V * Low quiescent supply current (ICC=2.7mA, typ) * Medium power output over 250mW at VCC=6V, RL=32Ω, THD＜10% * Load impedance range (8Ω~100Ω) * Low total harmonic distortion (0.