This part is a kind of semiconductor called PAM8610.

Function of this product has 10W Stereo Class-D Audio Power Amplifier.

Manufacturers : Power Analog Micoelectronics

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PAM8610 10W Stereo Class-D Audio Power Amplifier with DC Volume Control Key Features Load at General Description The PAM8610 is a 10W (per channel) stereo class-D audio amplifier with DC Volume Control which offers low THD+N (0.1%), low EMI, and good PSRR thus high-quality sound reproduction. The 32 steps DC volume control has a +32dB to -75dB range. The PAM8610 runs off of a 7V to 15V supply at much higher efficiency than competitors’ Ics. The PAM8610 only requires very few external components, significantly saving cost and board space. The PAM8610 is available in a 40pin QFN 6mm*6mm package. n 10W@10%THD / Channel Output into a 8 Ω 13V n Low Noise: -90dB n Over 90% Efficiency n 32Step DC Volume Control from -75dB to 32dB n With Shutdown/Mute/Fade Function n Over [ ... ]

PAM8610 PDF Datasheet Download