This part is a kind of semiconductor called CD7377CZ.

Function of this product has 7W X 4 channel audio power amplifier.

Manufacturers : ETC

Image and pinout :

Some of the text within the PDF file :

»ª¾§Ë«¼ µç· CD7377CZ 7W 1. ãµØÌëÓöÊŸ CD7377CZ » Ò Ç Ê ÀµùÉýÈ ¿Ç¦ÁÜÄØÔº¸ ¨¶Ì¹æÒöÔ¿²ÚÄ Äµ¼ÁÅÓ ú»ª¿ ÜĦ¹¤»£±¹Ñçµ´Ôçµý¹ ÜĦ¹¤»£±·Â̶ØÔº¸ ÜĦ¹¤»£±È ý¹ ½ÊÎа×â· ZIP15 àÛ ST-BY Ü Ä ¦ ¹ ¡ÐùÉ µ¥ BTL À µ ¨ Í « Ë é¿ 7W 4ô Ò À µ ¨ Í Ä Ë ó´Å·Ê¦¹µÆôÒÀµùÉÄËò» 2 24W/4 4 7W/4 Óë Ë« ¦¹µÆ 4 ËÄͨµÀÒôÆ ¹¦ÂÊ·Å´ó ç çµó´Å·Ê ·Â ÂÏçÈãµØÌäÆ ÃÓ¦ ªÒ÷Ö ûÆÚÓ ÐÖìÏôÒµ³ «Ë÷× ÀµùÉ Ë« BTL BTL 14.4V / 1kHz / 10% 14.4V / 1kHz / 10% CMOS Ý È æ ¼ AV =26dB / BTL ¥ µ ò ¼ ä Æ « ¼ · Â ç µ § Î â Í 2.÷õËŽýÒëÓ¼Íò¿ÜĦ¹ 2. [ ... ]

CD7377CZ PDF Datasheet Download