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.
7.1.2.
Signal Definitions...................................................................................................................................................8
Signaling Topology.................................................................................................................................................9
7.2. FRAME COMPOSITION.....................................................................................................................10
7.2.1.
7.2.2.
7.2.3.
7.2.4.
7.2.5.
Outbound Frame – Single SDO............................................................................................................................10
Outbound Frame – Multiple SDOs.......................................................................................................................12
Inbound Frame – Single SDI................................................................................................................................13
Inbound Frame – Multiple SDIs...........................................................................................................................14
Variable Sample Rates..........................................................................................................................................14
7.3. RESET AND INITIALIZATION............................................................................................................16
7.3.1.
7.3.2.
7.3.3.
Link Reset .............................................................................................................................................................16
Codec Reset..........................................................................................................................................................18
Codec Initialization Sequence ..............................................................................................................................18
7.1 Channel High Definition Audio Codec
iii
Track ID: JATR-1076-21 Rev. 1.4
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