Document
ALC880 Series
7.1 CHANNEL HIGH DEFINITION AUDIO CODEC DATASHEET
Rev. 1.4 01 September 2005 Track ID: JATR-1076-21
ALC880 Series Datasheet
COPYRIGHT
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USING THIS DOCUMENT This document is intended for the hardware and software engineer’s general information on the Realtek ALC880(D) Audio Codec chip.
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
1.0
2004/07/10
1.1
2004/08/30
1.2
2004/11/12
1.3
2005/01/25
1.4
2005/09/01
Summary First release. Add Power-Off CD control pin assignment information (Pin 33) 1. Power-Off CD mode not supported in ALC880-VH, ALC880D-VH, ALC880-VH-LF, ALC880D-VH-LF 2. Parameter ‘subsystem ID’ is read as 0s (Table 19, page 22) 3. Verb ‘subsystem verb’ is supported (Table 74, page 64, and Table 75, page 64) Add lead (Pb)-free and version package identification information on page 5 and in Table 84, on page 74. Update ordering information (see Table 84, on page 74).
7.1 Channel High Definition Audio Codec
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Track ID: JATR-1076-21 Rev. 1.4
ALC880 Series Datasheet
Table of Contents
1. General Description .................................................................................................... 1
2. Features ........................................................................................................................ 2
2.1. HARDWARE FEATURES.....................................................................................................................2 2.2. SOFTWARE FEATURES ......................................................................................................................3
3. System Applications .................................................................................................... 3
4. Block Diagram ............................................................................................................. 4
4.1. ANALOG INPUT/OUTPUT UNIT .........................................................................................................4
5. Pin Assignments........................................................................................................... 5
5.1. LEAD (PB)-FREE PACKAGE AND VERSION IDENTIFICATION .............................................................5
6. Pin Descriptions........................................................................................................... 6
6.1. DIGITAL I/O PINS .............................................................................................................................6 6.2. ANALOG I/O PINS.............................................................................................................................6 6.3. FILTER/REFERENCE ..........................................................................................................................7 6.4. POWER/GROUND ..............................................................................................................................7
7. High Definition Audio Link Protocol ........................................................................ 8
7.1. LINK SIGNALS ..................................................................................................................................8
7.1.1. Signal Definitions ...................................................................................................................................................8 7.1.2. Signaling Topology .................................................................................................................................................9
7.2. FRAME COMPOSITION.....................................................................................................................10
7.2.1. Outbound Frame – Single SDO............................................................................................................................10 7.2.2. Outbound Fr.