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Realtek Microelectronics |
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
www.realtek.com
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
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Rev. 0.65
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