alc887数据手册_引脚图_参数

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4.1. ANALOG INPUT/OUTPUT UNIT .....................................................................................................5
5. Pin Assignments ....................................................................................................... 6
REVISION HISTORY
Revision 0.1 0.11 0.2 0.21 0.22
Release Date 2009/11/05 2009/12/8 2010/01/28 2010/02/01 2010/07/21
Summary First release. Update part number at Section 13 – Ordering Information. Update IC marking. Update DVDD and built-in LDO output voltage range. Add ALC887-VD2-CG in the Ordering Information.
7. High Definition Audio Link Protocol .................................................................... 11
7.1. LINK SIGNALS ...........................................................................................................................11
7.1 Channel High Definition Audio Codec
ii
With Two Independent S/PDIF Output
Rev. 0.22
ALC887-VD Datasheet
Table of Contents
1. General Description ................................................................................................. 1
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.
7.2. FRAME COMPOSITION ................................................................................................................13
7.2.1. Outbound Frame – Single SDO............................................................................................................................13 7.2.2. Outbound Frame – Multiple SDOs.......................................................................................................................15 7.2.3. Inbound Frame – Single SDI ................................................................................................................................16 7.2.4. Inbound Frame – Multiple SDIs ...........................................................................................................................16 7.2.5. Variable Sample Rates..........................................................................................................................................17
2. Features .................................................................................................................... 2
2.1. HARDWARE FEATURES ................................................................................................................2 2.2. SOFTWARE FEATURES..................................................................................................................3
7.1.1. Signal Definitions .................................................................................................................................................12 7.1.2. Signaling Topology ...............................................................................................................................................13
USING THIS DOCUMENT
This document is intended for the hardware and software engineer’s general information on the Realtek ALC887-VD Ics.
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.
3. System Applications ................................................................................................. 3
4. Block Diagram.......................................................................................................... 4
COPYRIGHT © 2010 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.
5.1. ALC887-VD...............................................................................................................................6 5.2. VERSION IDENTIFICATION ............................................................................................................6 5.3. ALC887......................................................................................................................................7