STAC9766 Datasheet, PDF (2/97 Pages) Integrated Device Technology – TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING

STAC9766/9767
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
PC AUDIO
Table of Contents
1. PRODUCT BRIEF ...................................................................................................................... 6
1.1. Features (Revision CC1 and beyond) ............................................................................................... 6
1.2. Description ........................................................................................................................................ 6
1.3. STAC9766/9767 Block Diagram ........................................................................................................ 8
1.4. Key Specifications ............................................................................................................................. 8
1.5. Related Materials .............................................................................................................................. 8
1.6. Additional Support ............................................................................................................................. 8
2. CHARACTERISTICS AND SPECIFICATIONS .........................................................................9
2.1. Electrical Specifications ..................................................................................................................... 9
2.2. AC Timing Characteristics ............................................................................................................... 13
3. TYPICAL CONNECTION DIAGRAM .......................................................................................17
3.1. Split Independent Power Supply Operation .................................................................................... 18
4. CONTROLLER, CODEC AND AC-LINK .................................................................................20
4.1. AC-link Physical interface ................................................................................................................ 20
4.2. Controller to Single CODEC ............................................................................................................ 20
4.3. Controller to Multiple CODECs ........................................................................................................ 22
4.4. Clocking for Multiple CODEC Implementations ............................................................................... 23
4.5. AC-link Power Management ............................................................................................................ 24
5. AC-LINK DIGITAL INTERFACE ..............................................................................................27
5.1. Overview ......................................................................................................................................... 27
5.2. AC-link Serial Interface Protocol ...................................................................................................... 28
5.3. AC-link Output Frame (SDATA_OUT) ............................................................................................. 31
5.4. AC-link Input Frame (SDATA_IN) .................................................................................................... 34
5.5. AC-link Interoperability Requirements and Recommendations ....................................................... 38
5.6. Slot Assignments for Audio ............................................................................................................. 39
6. STAC9766/9767 MIXER ..........................................................................................................41
6.1. Mixer Description ............................................................................................................................. 41
6.2. Mixer Functional Diagrams .............................................................................................................. 42
6.3. Mixer Analog Input ......................................................................................................................... 43
6.4. Mixer Analog Output ....................................................................................................................... 43
7. SPDIF AND PC BEEP .............................................................................................................44
7.1. SPDIF Digital Mux ...........................................................................................................................44
7.2. PC Beep Implementation ................................................................................................................ 44
8. PROGRAMMING REGISTERS ...............................................................................................46
8.1. Register Descriptions ...................................................................................................................... 47
8.2. General Purpose Input & Outputs ................................................................................................... 65
8.3. Extended CODEC Registers Page Structure Definition .................................................................. 68
8.4. STAC9766/9767 Paging Registers ................................................................................................. 69
8.5. Vendor ID1 and ID2 (Index 7Ch and 7Eh) ...................................................................................... 79
9. LOW POWER MODES ...........................................................................................................81
10. MULTIPLE CODEC SUPPORT ............................................................................................83
10.1. Primary/Secondary CODEC Selection .......................................................................................... 83
10.2. Secondary CODEC Register Access Definitions .......................................................................... 84
11. TESTABILITY ........................................................................................................................85
11.1. ATE Test Mode ............................................................................................................................. 85
12. ORDERING INFORMATION ..................................................................................................86
12.1. STAC9766/9767 Family Options and Part Order Numbers ...........................................................86
13. PIN DESCRIPTION ................................................................................................................87
13.1. Digital I/O ...................................................................................................................................... 88
13.2. Filter/References .......................................................................................................................... 88
13.3. Analog I/O .................................................................................................................................... 89
13.4. Power and Ground Signals .......................................................................................................... 90
IDT™
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TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
STAC9766/9767
V 7.4 12/06