92HD71B5
4-CHANNEL HD AUDIO CODECS OPTIMIZED FOR LOW POWER
PC AUDIO
TABLE OF CONTENTS
1. DESCRIPTION .......................................................................................................................... 9
1.1. Overview ............................................................................................................................................9
1.2. Orderable Part numbers ..................................................................................................................10
1.3. Block Diagram .................................................................................................................................10
1.4. Detailed Description .........................................................................................................................11
1.4.1. Low-voltage High Definition Audio Link Signaling ..............................................................11
1.4.2. Port Functionality ...............................................................................................................11
1.4.3. Port Characteristics ............................................................................................................11
1.4.4. Jack Detect ........................................................................................................................12
1.4.5. SPDIF Output .....................................................................................................................12
1.4.6. Mono Output ......................................................................................................................13
1.4.7. Input Multiplexers ...............................................................................................................14
1.4.8. ADC Multiplexers ...............................................................................................................14
1.4.9. Power Management ...........................................................................................................14
1.4.10. Multi-channel capture .......................................................................................................15
1.4.11. EAPD ...............................................................................................................................16
1.4.12. Digital Microphone Support ..............................................................................................17
1.4.13. Analog PC-Beep ..............................................................................................................21
1.4.14. Headphone Drivers ..........................................................................................................21
1.4.15. GPIO ................................................................................................................................21
1.4.16. External Volume Control ..................................................................................................22
2. CHARACTERISTICS ............................................................................................................... 24
2.1. Electrical Specifications ...................................................................................................................24
2.1.1. Absolute Maximum Ratings ...............................................................................................24
2.1.2. Recommended Operating Conditions ................................................................................24
2.2. 92HD71B5 5V, 4.75V, and 3.3V Analog Performance Characteristics (PRELIMINARY) ...............25
3. PORT CONFIGURATIONS ..................................................................................................... 30
4. FUNCTIONAL BLOCK DIAGRAM .......................................................................................... 31
5. WIDGET INFORMATION AND SUPPORTED COMMAND VERBS ....................................... 32
5.1. Widget List 92HD71B5 ...................................................................................................................33
6. PIN CONFIGURATION DEFAULT REGISTER SETTINGS .................................................... 34
7. WIDGET INFORMATION ........................................................................................................ 35
8. SUPPORTED VERBS AND COMMANDS .............................................................................. 36
8.1. Root Node (NID = 00) ......................................................................................................................36
8.1.1. Root VendorID ...................................................................................................................36
8.1.2. Root RevID ........................................................................................................................36
8.2. AFG Node (NID = 01 .......................................................................................................................37
8.2.1. AFG Reset .........................................................................................................................37
8.2.2. AFG NodeInfo ....................................................................................................................37
8.2.4. AFG AFGCap .....................................................................................................................38
8.2.3. AFG FGType ......................................................................................................................38
8.2.5. AFG PCMCap ....................................................................................................................39
8.2.6. AFG StreamCap ................................................................................................................40
8.2.7. AFG InAmpCap ..................................................................................................................41
8.2.8. AFG PwrStateCap .............................................................................................................41
8.2.9. AFG GPIOCnt ....................................................................................................................42
8.2.11. AFG PwrState ..................................................................................................................43
8.2.10. AFG OutAmpCap .............................................................................................................43
8.2.12. AFG UnsolResp ...............................................................................................................44
8.2.13. AFG GPIO ........................................................................................................................44
8.2.14. AFG GPIOEn ...................................................................................................................45
8.2.15. AFG GPIODir ...................................................................................................................46
8.2.16. AFG GPIOWakeEn ..........................................................................................................47
IDT™ CONFIDENTIAL AND PROPRIETARY
4-CHANNEL HD AUDIO CODECS OPTIMIZED FOR LOW POWER
3
92HD71B5
V 0.9 09/07
