92HD65C Datasheet, PDF (3/268 Pages) Integrated Device Technology – SIX CHANNEL HD AUDIO CODECS

92HD65C
SIX CHANNEL HD AUDIO CODEC WITH DUAL CAPLESS HEADPHONE AMPLIFIERS
TABLE OF CONTENTS
1. DESCRIPTION ........................................................................................................................ 10
1.1. Overview ..........................................................................................................................................10
1.2. Orderable Part Numbers ..................................................................................................................10
2. DETAILED DESCRIPTION ..................................................................................................... 11
2.1. Port Functionality .............................................................................................................................11
2.2. Port Characteristics .........................................................................................................................11
2.3. Vref_Out ..........................................................................................................................................12
2.4. Jack Detect ......................................................................................................................................12
2.5. SPDIF Output ..................................................................................................................................13
2.6. SPDIF Input .....................................................................................................................................15
2.7. Analog Mixer ....................................................................................................................................16
2.8. ADC Multiplexers .............................................................................................................................16
2.9. Power Management .........................................................................................................................17
2.10. AFG D0 ..........................................................................................................................................18
2.11. AFG D1 ..........................................................................................................................................18
2.12. AFG D2 ..........................................................................................................................................18
2.13. AFG D3 ..........................................................................................................................................18
2.13.1. AFG D3cold .....................................................................................................................18
2.14. Vendor Specific Function Group Power States D4/D5 ..................................................................19
2.15. Vendor Specific Function Group Power State “D5 Kill” ..................................................................19
2.16. Low-voltage HDA Signaling ...........................................................................................................19
2.17. Multi-channel capture ....................................................................................................................19
2.18. EAPD .............................................................................................................................................21
2.19. Digital Microphone Support ...........................................................................................................24
2.20. Analog PC-Beep ............................................................................................................................28
2.20.1. PC_Beep Activity Monitor ................................................................................................29
2.21. Digital PC-Beep .............................................................................................................................31
2.22. Headphone Drivers ........................................................................................................................32
2.23. GPIO ..............................................................................................................................................32
2.23.1. GPIO Pin mapping and shared functions .........................................................................32
2.23.2. Digital Microphone/GPIO Selection .................................................................................32
2.23.3. SPDIF_OUT/GPIO/DMIC Selection .................................................................................32
2.24. HD Audio ECR 15b support ...........................................................................................................33
2.25. Digital Core Voltage Regulator ......................................................................................................33
2.26. Combo Jack ...................................................................................................................................34
3. CHARACTERISTICS ............................................................................................................... 35
3.1. Audio Fidelity ...................................................................................................................................35
3.2. Electrical Specifications ...................................................................................................................35
3.2.1. Absolute Maximum Ratings ...............................................................................................35
3.2.2. Recommended Operating Conditions ................................................................................35
3.3. 92HD65C Analog Performance Characteristics (PRELIMINARY) ..................................................................36
3.4. Capless Headphone Supply Characteristics ....................................................................................41
3.5. AC Timing Specs .............................................................................................................................41
3.5.1. HD Audio Bus Timing .........................................................................................................41
3.5.2. SPDIF Timing .....................................................................................................................42
3.5.3. Digital Microphone Timing .................................................................................................42
3.5.4. GPIO Characteristics .........................................................................................................42
4. COMMON PORT CONFIGURATIONS ................................................................................... 43
5. FUNCTIONAL DIAGRAMS ..................................................................................................... 44
5.1. Widget Diagram ...............................................................................................................................45
5.2. Configuration Default Register Settings ...........................................................................................46
6. WIDGET INFORMATION ........................................................................................................ 47
6.1. Widget List .......................................................................................................................................47
6.2. Widget Descriptions .........................................................................................................................48
6.3. Reset Key ........................................................................................................................................49
6.4. Root (NID = 00h): VendorID ............................................................................................................49
6.4.1. Root (NID = 00h): RevID ....................................................................................................50
IDT CONFIDENTIAL
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92HD65C