LM4857

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m (Correct voltage input, add variable output caveat.)
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* Line-out, unused.
 
* Line-out, unused.
  
[http://www.national.com/pf/LM/LM4857.html Datasheet.]
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[http://www.national.com/pf/LM/LM4857.html The National Semiconductor Datasheet provides additional information.]
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[[Category:Neo1973 Hardware]]

Revision as of 18:32, 6 April 2007

An audio power amplifier, connected to the VB power rail (battery terminal voltage) for power.

The audio power output may vary as the battery discharges.

  • 0.5W stereo speaker output, used for the main speakers.
  • 33mW stereo headphone output (32 ohms), for the headphones.
  • 43mW mono earpiece output, for the earpiece.
  • Line-out, unused.

The National Semiconductor Datasheet provides additional information.

Personal tools

An audio power amplifier, connected to the VB power rail (battery terminal voltage) for power.

The audio power output may vary as the battery discharges.

  • 0.5W stereo speaker output, used for the main speakers.
  • 33mW stereo headphone output (32 ohms), for the headphones.
  • 43mW mono earpiece output, for the earpiece.
  • Line-out, unused.

Datasheet.