Part Number : ALC221


Manufactures : Realtek Microelectronics

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ALC221 (P/N: ALC221-GR) HIGH DEFINITION AUDIO CODEC WITH MONO CLASS-D SPEAKER AMPLIFIER DATASHEET Version 0.65 25th May 2011 Realtek Semiconductor Corp. No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu 300, Taiwan Tel.: +886-3-578-0211. Fax: +886-3-577-6047 ALC221 Datasheet COPYRIGHT ©2011 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, neither expressed nor implied, including, but not limited to the particular purpose. Realtek may make improvements and/or changes in this document or in the product described in this document at any time. This document could include technical inaccuracies or typographical errors. TRADEMARKS Realtek is a trademark of Realtek Semiconductor Corporation. Other names mentioned in this document are trademarks/registered trademarks of their respective owners. USING THIS DOCUMENT This document is intended for the hardware and software engineer’s general information on the Realtek ALC221 HD Audio Codec IC. Though every effort has been made to ensure that this document is current and accurate, more information may have become available subsequent to the production of this guide. In that event, please contact your Realtek representative for additional information that may help in the development process. REVISION HISTORY Revision Release Date 0.10 2010/10/01 0.50 2010/10/25 0.60 2011/03/03 0.65 2011/05/25 Summary Preliminary release Update features list and block diagram. 1. Update hardware features list 2. Update pin description 3. Add application circuits 1. Change package information High Definition Audio Codec with Embedded Mono Class-D Speaker Amplifier ii Rev. 0.65 ALC221 Datasheet Table of Contents 1. GENERAL Description 1 2. Features .2 2.1. HARDWARE Features .2 2.2. SOFTWARE Features 4 3. SYSTEM Applications .4 4. BLOCK DIAGRAM [ .]

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ALC221 Datasheet

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