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Audio Circuit Design and Power Supply Design MP3 player

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abishek007

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mp3 player circuit design

Hi All

i am preparing for an interview ( 2maro ) . I am aware of power supply design ( but not sure which one is used for MP3 players ) but i am totally new to Audio Circuit Design .

I will appreciate if some one can please re direct me to the links that explain these things

Thanks

Abishek Mann
 

audio circuit power

In all MP3 player they use 3.3V DC supply with that only 1.2 V is drawn for audio section
 

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