This part is a kind of semiconductor called PAM8403H.

Function of this product has FILTERLESS 3W CLASS-D STEREO AUDIO AMPLIFIER.

Manufacturers : Diodes

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A Product Line of Diodes Incorporated PAM8403H FILTERLESS 3W CLASS-D STEREO AUDIO AMPLIFIER Description The PAM8403H is a 3W, class-D audio amplifier. It offers low THD+N, allowing it to achieve high quality sound reproduction. The new filterless architecture allows the device to drive the speaker directly, requiring no low-pass output filters, thus saving system cost and PCB area. With the same numbers of external components, the efficiency of the PAM8403H is much better than that of class-AB cousins. It can extend the battery life, ideal for portable applications. The PAM8403H is available in SOP-16 package. Pin Assignments Features  3W Output at 10% THD with a 4 Load and 5V Power Supply  Filterless, Low Quiescent Current and Low EMI  Low THD+N  Superior Low Noise  Effi [ ... ]

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