System on a chip with multiple independent outputs
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United States of America Patent
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Feb 2, 2010
Grant Date -
May 1, 2008
app pub date -
Apr 30, 2007
filing date -
Oct 31, 2006
priority date (Note) -
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Abstract
An audio output circuit includes a DAC module, a line out circuit, and a headphone amplifier circuit. The digital to analog conversion (DAC) module is coupled to convert an audio component of digitized multimedia data into an analog audio signal. The line out circuit is coupled to amplify the analog audio signal based on a line out volume setting. The headphone amplifier is coupled to amplify the analog audio signal based on a volume setting to produce an amplified analog audio signal.
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