92HD66C Datasheet, PDF (2/291 Pages) Integrated Device Technology – SIX CHANNEL HD AUDIO CODECS

92HD66C
SIX CHANNEL HD AUDIO CODECS 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. Mono Output ....................................................................................................................................15
2.8. Analog Mixer ....................................................................................................................................16
2.9. ADC Multiplexers .............................................................................................................................16
2.10. Power Management .......................................................................................................................17
2.11. AFG D0 ..........................................................................................................................................18
2.12. AFG D1 ..........................................................................................................................................18
2.13. AFG D2 ..........................................................................................................................................18
2.14. AFG D3 ..........................................................................................................................................18
2.14.1. AFG D3cold .....................................................................................................................18
2.15. Vendor Specific Function Group Power States D4/D5 ..................................................................19
2.16. Vendor Specific Function Group Power State “D5 Kill” ..................................................................19
2.17. Low-voltage HDA Signaling ...........................................................................................................19
2.18. Multi-channel capture ....................................................................................................................19
2.19. EAPD .............................................................................................................................................21
2.20. Digital Microphone Support ...........................................................................................................24
2.21. Analog PC-Beep ............................................................................................................................28
2.21.1. PC_Beep Activity Monitor ................................................................................................29
2.22. Digital PC-Beep .............................................................................................................................31
2.23. Headphone Drivers ........................................................................................................................32
2.24. GPIO ..............................................................................................................................................32
2.24.1. GPIO Pin mapping and shared functions .........................................................................32
2.24.2. Digital Microphone/GPIO Selection .................................................................................32
2.24.3. SPDIF_OUT/GPIO/DMIC Selection .................................................................................33
2.25. HD Audio ECR 15b support ...........................................................................................................33
2.26. Digital Core Voltage Regulator ......................................................................................................34
2.27. Analog Core Voltage Regulator .....................................................................................................34
2.28. 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. 92HD66C 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. 48-Pin Package ...............................................................................................................................44
5.2. 40-Pin Package ...............................................................................................................................45
5.3. 48-Pin Package Widget Diagram .....................................................................................................46
5.4. 40-Pin Package Widget Diagram .....................................................................................................47
5.5. 48-Pin Configuration Default Register Settings ...............................................................................48
5.6. 40-Pin Configuration Default Register Settings ...............................................................................49
IDT CONFIDENTIAL
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92HD66C