LM4857

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(The audio amplifier in the neo,.)
 
m (Correct voltage input, add variable output caveat.)
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An audio power amplifier, connected to the 3.3V power supply.
+
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.
 
* 0.5W stereo speaker output, used for the main speakers.

Revision as of 00:38, 21 February 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.

Datasheet.

Personal tools

An audio power amplifier, connected to the 3.3V power supply.

  • 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.