This part is a kind of semiconductor called ALC5621.

Function of this product has I2S Audio Codec + 2.6W Class-AB/D Mono Speaker Amplifier + Headphone Amplifier.

Manufacturers : Realtek Microelectronics

Image and pinout :

Some of the text within the PDF file :

ALC5621 I2S AUDIO CODEC + 2.6W CLASS-AB/D MONO SPEAKER AMPLIFIER + HEADPHONE AMPLIFIER www.DataSheet.co.kr DATASHEET Rev. 1.2 21 July 2009 Track ID: JATR-1076-21 Realtek Semiconductor Corp. No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu 300, Taiwan Tel.: +886-3-578-0211. Fax: +886-3-577-6047 www.realtek.com Datasheet pdf - http://www.net/ ALC5621 Datasheet COPYRIGHT ©2009 Realtek Semiconductor Corp. All rights reserved. No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means without the written permission of Realtek Semiconductor Corp. DISCLAIMER Realtek provides this document “as is”, without warranty of any kind. Realtek may make improvements and/or cha [ ... ]

ALC5621 PDF Datasheet Download