ALC882 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 .........................................................................................................5
5. Pin Assignments........................................................................................................... 6
5.1. LEAD (PB)-FREE PACKAGE AND VERSION IDENTIFICATION .............................................................6
6. Pin Descriptions........................................................................................................... 7
6.1. DIGITAL I/O PINS .............................................................................................................................7
6.2. ANALOG I/O PINS.............................................................................................................................7
6.3. FILTER/REFERENCE ..........................................................................................................................8
6.4. POWER/GROUND ..............................................................................................................................8
7. High Definition Audio Link Protocol ........................................................................ 9
7.1. LINK SIGNALS ..................................................................................................................................9
7.1.1.
7.1.2.
Signal Definitions.................................................................................................................................................10
Signaling Topology...............................................................................................................................................11
7.2. FRAME COMPOSITION.....................................................................................................................12
7.2.1.
7.2.2.
7.2.3.
7.2.4.
7.2.5.
Outbound Frame – Single SDO............................................................................................................................12
Outbound Frame – Multiple SDO ........................................................................................................................13
Inbound Frame – Single SDI................................................................................................................................14
Inbound Frame – Multiple SDI ............................................................................................................................15
Variable Sample Rates..........................................................................................................................................15
7.3. RESET AND INITIALIZATION............................................................................................................18
7.3.1.
7.3.2.
7.3.3.
Link Reset .............................................................................................................................................................18
Codec Reset..........................................................................................................................................................19
Codec Initialization Sequence ..............................................................................................................................20
7.1+2 Channel High Definition Audio Codec
iii
Track ID: JATR-1076-21 Rev. 1.5
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