This part is a kind of semiconductor called CD7388CZ.

Function of this product has 4 x 41W.

Manufacturers : Huajing Microelectronics

Image and pinout :

Some of the text within the PDF file :

ഀ‫ݾ‬Ԩা CD7388CZ 4u41W ୺к࿛ູٟ৑ׂӖԨা 1ǃὖ䗄 ᴀ䌘᭭䗖⫼㣗ೈ˖CD7388CZ CD7388 ᰃϔഫ⫼Ѣ催ッ≑䔺䷇ડⱘಯ䗮䘧 BTL 䕧ߎⱘ AB ㉏ࡳ⥛ᬒ໻⬉䏃DŽ ݊⡍⚍བϟ˖ Ɣ 催ࡳ⥛䕧ߎ㛑࡯˄᳔໻ 4u41W/4ȍ˗4u25W/4ȍ @ 14.4Vˈ1kHzˈ10%˅ Ɣ ༅ⳳᑺԢ Ɣ 䕧ߎాໄᇣ Ɣ ᏺᕙᴎࡳ㛑 Ɣ ᏺ䴭䷇ࡳ㛑 Ɣ ⬉⑤⬉य़Ԣᯊ㞾ࡼਃࡼ䴭䷇ࡳ㛑 Ɣ ᠔䳔໪ೈ‫ܗ‬ӊᇥ -‫ݙ‬䚼๲Ⲟ೎ᅮ˄GV=26dB BTL˅ -ϡ䳔㞾В⬉ᆍ Ɣ 䕧ߎⷁ䏃ֱᡸ˖ᇍഄ/⬉⑤ǃ䋳䕑ⷁ䏃 Ɣ ᏺ⏽ᑺֱᡸࡳ㛑 Ɣ ESD ֱᡸ Ɣ ᇕ㺙ᔶᓣ˖FZIP25 2ǃࡳ㛑Ḛ೒Ϣᓩ㛮䇈ᯢ 2. 1ǃࡳ㛑Ḛ೒ Vcc1 Vcc2 ST-BY MUTE IN1 䖛य़ֱ x -`Cˆ – x &` – x N.C. OUT1+ OUT1PW-GND OUT2+ IN2 OUT2- PW-GND OUT3+ IN3 OUT3- PW-GND IN4 AC-GND SVR TA [ ... ]

CD7388CZ PDF Datasheet Download