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PA3011 - 3-W STEREO AUDIO POWER AMPLIFIER

General Description

As a stereo audio speaker which is operating on a single 5.5V supply, the UTC PA3011 is capable of delivering 3W of output power per channel into 3Ω loads with less than 10% THD+N.

The speaker volume level is adjusted by applying a dc voltage to the VOLUME terminal.

Key Features

  • DC volume control with 2-dB steps :-40 dB ~ 20 dB.
  • Fade mode.
  • Maximum volume setting for SE mode.
  • 3 W into 3Ω load.
  • MUX stereo input.

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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 PA301 1 3-W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL CMOS IC  DESCRIPTION As a stereo audio speaker which is operating on a single 5.5V supply, the UTC PA3011 is capable of delivering 3W of output power per channel into 3Ω loads with less than 10% THD+N. The speaker volume level is adjusted by applying a dc voltage to the VOLUME terminal. When a dc voltage is applied, to avoid an unexpected high volume level through the headphones, a third terminal, SEMAX, limits the headphone volume level. And also a fade mode ramps the volume up and down to ensure a smooth transition between active and shutdown modes,. The UTC PA3011 can be applicatated in notebook, LCD monitors and pocket PC.