DATASHEET
SINGLE CHIP PC AUDIO SYSTEM
CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
92HD81
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Full ECR15B low power support
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Audio inactivity transitions codec from D0 to D3 low
power mode
Resume from D3 to D0 with audio activity in < 10 msec
D3 to D0 transition with < -65dB pop/click
Port presence detect in D3 with or without bit clock
Optional analog PC beep in D3
Additional vendor specific modes for even lower power
Description
The 92HD81 single-chip audio system is a low power
optimized, high fidelity, 4-channel audio codec with
integrated speaker amplifier, capless headphone amplifier,
and low drop out voltage regulator. The high integration of
the 92HD81 enables the smallest PCB footprint with the
lowest system BOM count and cost. The 92HD81 provides
high quality HD Audio capability to notebook and business
desktop PC applications.
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Microsoft WLP 3/4/5 premium logo compliant, as
defined in WLP 3.9
Dual SPDIF for WLP compliant support of
simultaneous HDMI and SPDIF output
Support for 1.5V and 3.3V HDA signaling
Two digital microphone inputs (mono, stereo, or
quad microphones)
High performance analog mixer
2 adjustable VREF Out pins for analog microphone
bias
6 analog ports with port presence detect (5 single
ended, 1 BTL)
Analog and digital PC Beep support
Aux Audio Mode
(see orderable part numbers for support)
48-pad QFN RoHS packages
Features
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4 Channels (2 stereo DACs and 2 stereo ADCs) with
24-bit resolution
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Supports full-duplex stereo audio and simultaneous VoIP
Provides a mono output
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2W/channel stereo speaker amplifier @ 4 ohms and
4.75V
Two headphone amplifiers
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One capless and one non-capless retaskable
1.5V to 1.8V or 3.3V digital power supply options
Internal core voltage regulator
+5 V analog power supply option
Block Diagram
Port A (HP)
Port B (cap-less HP/LO)
Port C
Port D (BTL)
Port E
Port F
SPDIF Out 0
SPDIF Out 1
High Definition
Interface
DSP
DUAL SPDIF
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SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
Ports
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92HD81
V 0.987 11/09
92HD81
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
PC AUDIO
Software Support
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Intuitive graphical user interface that allows configurability and preference settings
SKPI (Kernel Processing Interface)
• Enables plug-ins that can operate globally on all audio streams of the system
12 band fully parametric equalizer (SKPI plug-in)
• Constant, system-level effects tuned to optimize a particular platform can be combined with
user-mode “presets” tailored for specific acoustical environments and applications
• System-level effects automatically disabled when external audio connections made
Dynamics Processing (SKPI plug-in)
• Enables improved voice articulation
• Compressor/limiter allows higher average noise level without resonances or damage to
speakers.
IDT Vista APO wrapper
• Enables multiple APOs to be used with the IDT Driver
Microphone Beam Forming, Acoustic Echo Cancellation, and Noise Suppression
Dynamic Stream Switching
• Improved multi-streaming user experience with less support calls
Dolby PC Entertainment Experience Logo Program
• Dolby Home Theater™ (HT)
• Dolby Sound Room™ (SR)
Dolby Technologies
• Dolby Headphone™, Dolby Virtual Speaker™
• Dolby ProLogic II™, Dolby ProLogic IIx™
• Dolby Digital Live™ (DDL)
Maxx Player™ from Waves
WOW
TM
and Tru Surround
TM
from SRS
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SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
92HD81
V 0.987 11/09
92HD81
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
TABLE OF CONTENTS
1. DESCRIPTION ........................................................................................................................ 11
1.1. Overview ..........................................................................................................................................11
1.2. Orderable Part Numbers ..................................................................................................................11
1.3. Block Diagram .................................................................................................................................12
2. DETAILED DESCRIPTION ..................................................................................................... 13
2.1. Port Functionality .............................................................................................................................13
2.1.1. Port Characteristics ............................................................................................................15
2.1.2. Vref_Out .............................................................................................................................15
2.1.3. Jack Detect ........................................................................................................................15
2.1.4. SPDIF Output .....................................................................................................................16
2.2. Mono Output ....................................................................................................................................18
2.3. Analog Mixer ....................................................................................................................................19
2.4. ADC Multiplexers .............................................................................................................................19
2.5. Power Management .........................................................................................................................19
2.6. AFG D0 ............................................................................................................................................20
2.7. AFG D1 ............................................................................................................................................20
2.8. AFG D2 ............................................................................................................................................20
2.9. AFG D3 ............................................................................................................................................21
2.9.1. AFG D3cold .......................................................................................................................21
2.10. Vendor Specific Function Group Power States D4/D5 ..................................................................22
2.11. Low-voltage HDA Signaling ...........................................................................................................22
2.12. Multi-channel capture ....................................................................................................................22
2.13. Digital Microphone Support ...........................................................................................................24
2.14. Analog PC-Beep ............................................................................................................................29
2.15. Digital PC-Beep .............................................................................................................................29
2.16. Headphone Drivers ........................................................................................................................29
2.17. EAPD .............................................................................................................................................30
2.18. BTL Amplifier .................................................................................................................................33
2.19. GPIO ..............................................................................................................................................34
2.19.1. GPIO Pin mapping and shared functions .........................................................................34
2.19.2. SPDIF/Digital Microphone/GPIO Selection ......................................................................34
2.19.3. Digital Microphone/GPIO Selection .................................................................................34
2.20. HD Audio ECR 15b support ...........................................................................................................35
2.21. Digital Core Voltage Regulator ......................................................................................................35
2.22. Aux Audio Support .........................................................................................................................36
2.22.1. General conditions in Aux Audio Mode: ...........................................................................36
2.22.2. “Playback Path” Port Behavior .........................................................................................36
2.22.3. “Record Path” Port Behavior ............................................................................................38
2.22.4. EAPD ...............................................................................................................................39
2.22.5. Analog PC_Beep .............................................................................................................39
2.22.6. Firmware/Software Requirements: ...................................................................................39
3. CHARACTERISTICS ............................................................................................................... 40
3.1. Electrical Specifications ...................................................................................................................40
3.1.1. Absolute Maximum Ratings ...............................................................................................40
3.1.2. Recommended Operating Conditions ................................................................................40
3.2. 92HD81 Analog Performance Characteristics (PRELIMINARY) .....................................................41
3.3. AC Timing Specs .............................................................................................................................46
3.3.1. HD Audio Bus Timing .........................................................................................................46
3.3.2. SPDIF Timing .....................................................................................................................46
3.3.3. Digital Microphone Timing .................................................................................................47
3.3.4. Class-AB BTL Amplifier Performance ...............................................................................48
3.3.5. Capless Headphone Supply Characteristics ......................................................................48
4. FUNCTIONAL BLOCK DIAGRAMS ....................................................................................... 49
5. WIDGET INFORMATION AND SUPPORTED COMMAND VERBS ....................................... 50
6. PORT CONFIGURATIONS ..................................................................................................... 51
6.1. Suggested Desktop Configurations .................................................................................................51
6.2. Suggested Mobile Port Configurations ............................................................................................52
IDT™ CONFIDENTIAL
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
3
V 0.987 11/09
92HD81
92HD81
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
6.3. Pin Configuration Default Register Settings .....................................................................................53
7. WIDGET INFORMATION ........................................................................................................ 54
7.1. Widget List .......................................................................................................................................54
7.2. Reset Key ........................................................................................................................................56
7.3. Root (NID = 00h): VendorID ............................................................................................................56
7.3.1. Root (NID = 00h): RevID ....................................................................................................57
7.3.2. Root (NID = 00h): NodeInfo ...............................................................................................57
7.4. AFG (NID = 01h): NodeInfo .............................................................................................................58
7.4.1. AFG (NID = 01h): FGType .................................................................................................59
7.4.2. AFG (NID = 01h): AFGCap ................................................................................................59
7.4.3. AFG (NID = 01h): PCMCap ...............................................................................................60
7.4.4. AFG (NID = 01h): StreamCap ............................................................................................62
7.4.5. AFG (NID = 01h): InAmpCap .............................................................................................62
7.4.6. AFG (NID = 01h): PwrStateCap .........................................................................................63
7.4.7. AFG (NID = 01h): GPIOCnt ...............................................................................................64
7.4.8. AFG (NID = 01h): OutAmpCap ..........................................................................................65
7.4.9. AFG (NID = 01h): PwrState ...............................................................................................66
7.4.10. AFG (NID = 01h): UnsolResp ..........................................................................................67
7.4.11. AFG (NID = 01h): GPIO ...................................................................................................67
7.4.12. AFG (NID = 01h): GPIOEn ...............................................................................................68
7.4.13. AFG (NID = 01h): GPIODir ..............................................................................................69
7.4.14. AFG (NID = 01h): GPIOWakeEn .....................................................................................69
7.4.15. AFG (NID = 01h): GPIOUnsol ..........................................................................................70
7.4.16. AFG (NID = 01h): GPIOSticky .........................................................................................71
7.4.17. AFG (NID = 01h): SubID ..................................................................................................71
7.4.18. AFG (NID = 01h): GPIOPlrty ............................................................................................72
7.4.19. AFG (NID = 01h): GPIODrive ...........................................................................................73
7.4.20. AFG (NID = 01h): DMic ....................................................................................................74
7.4.21. AFG (NID = 01h): DACMode ...........................................................................................75
7.4.22. AFG (NID = 01h): ADCMode ...........................................................................................76
7.4.23. AFG (NID = 01h): EAPD ..................................................................................................76
7.4.24. AFG (NID = 01h): PortUse ...............................................................................................78
7.4.25. AFG (NID = 01h): VSPwrState .........................................................................................79
7.4.26. AFG (NID = 01h): AnaPort ...............................................................................................80
7.4.27. AFG (NID = 01h): AnaBeep .............................................................................................81
7.4.28. AFG (NID = 01h): AnaBTL YC and YD Revisions ...........................................................81
7.4.29. AFG (NID = 01h): AnaBTL UA and TA Revisions ............................................................83
7.4.30. AFG (NID = 01h): AnaCapless .........................................................................................87
7.4.31. AFG (NID = 01h): Reset ...................................................................................................89
7.4.32. AFG (NID = 01h): AuxAudio .............................................................................................90
7.5. PortA (NID = 0Ah): WCap ................................................................................................................91
7.5.1. PortA (NID = 0Ah): PinCap ................................................................................................92
7.5.2. PortA (NID = 0Ah): ConLst .................................................................................................94
7.5.3. PortA (NID = 0Ah): ConLstEntry0 ......................................................................................94
7.5.4. PortA (NID = 0Ah): InAmpLeft ............................................................................................95
7.5.5. PortA (NID = 0Ah): InAmpRight .........................................................................................95
7.5.6. PortA (NID = 0Ah): ConSelectCtrl ......................................................................................96
7.5.7. PortA (NID = 0Ah): PwrState .............................................................................................96
7.5.8. PortA (NID = 0Ah): PinWCntrl ............................................................................................97
7.5.9. PortA (NID = 0Ah): UnsolResp ..........................................................................................98
7.5.10. PortA (NID = 0Ah): ChSense ...........................................................................................98
7.5.11. PortA (NID = 0Ah): EAPDBTLLR .....................................................................................99
7.5.12. PortA (NID = 0Ah): ConfigDefault ....................................................................................99
7.6. PortB (NID = 0Bh): WCap ..............................................................................................................102
7.6.1. PortB (NID = 0Bh): PinCap ..............................................................................................104
7.6.2. PortB (NID = 0Bh): ConLst ...............................................................................................105
7.6.3. PortB (NID = 0Bh): ConLstEntry0 ....................................................................................106
7.6.4. PortB (NID = 0Bh): ConSelectCtrl ....................................................................................107
7.6.5. PortB (NID = 0Bh): PwrState ...........................................................................................107
IDT™ CONFIDENTIAL
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
4
V 0.987 11/09
92HD81
92HD81
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
7.6.6. PortB (NID = 0Bh): PinWCntrl ..........................................................................................108
7.6.7. PortB (NID = 0Bh): UnsolResp ........................................................................................109
7.6.8. PortB (NID = 0Bh): ChSense ...........................................................................................109
7.6.9. PortB (NID = 0Bh): EAPDBTLLR .....................................................................................110
7.6.10. PortB (NID = 0Bh): ConfigDefault ..................................................................................110
7.7. PortC (NID = 0Ch): WCap .............................................................................................................113
7.7.1. PortC (NID = 0Ch): PinCap ..............................................................................................114
7.7.2. PortC (NID = 0Ch): ConLst ..............................................................................................116
7.7.3. PortC (NID = 0Ch): ConLstEntry0 ....................................................................................116
7.7.4. PortC (NID = 0Ch): InAmpLeft .........................................................................................117
7.7.5. PortC (NID = 0Ch): InAmpRight .......................................................................................117
7.7.6. PortC (NID = 0Ch): ConSelectCtrl ...................................................................................118
7.7.7. PortC (NID = 0Ch): PwrState ...........................................................................................118
7.7.8. PortC (NID = 0Ch): PinWCntrl .........................................................................................119
7.7.9. PortC (NID = 0Ch): UnsolResp ........................................................................................120
7.7.10. PortC (NID = 0Ch): ChSense .........................................................................................121
7.7.11. PortC (NID = 0Ch): EAPDBTLLR ...................................................................................121
7.7.12. PortC (NID = 0Ch): ConfigDefault ..................................................................................122
7.8. PortD (NID = 0Dh): WCap .............................................................................................................124
7.8.1. PortD (NID = 0Dh): PinCap ..............................................................................................126
7.8.2. PortD (NID = 0Dh): ConLst ..............................................................................................127
7.8.3. PortD (NID = 0Dh): ConLstEntry0 ....................................................................................128
7.8.4. PortD (NID = 0Dh): ConSelectCtrl ...................................................................................129
7.8.5. PortD (NID = 0Dh): PwrState ...........................................................................................129
7.8.6. PortD (NID = 0Dh): PinWCntrl .........................................................................................130
7.8.7. PortD (NID = 0Dh): EAPDBTLLR .....................................................................................130
7.8.8. PortD (NID = 0Dh): ConfigDefault ....................................................................................131
7.9. PortE (NID = 0Eh): WCap ..............................................................................................................134
7.9.1. PortE (NID = 0Eh): PinCap ..............................................................................................135
7.9.2. PortE (NID = 0Eh): ConLst ...............................................................................................137
7.9.3. PortE (NID = 0Eh): ConLstEntry0 ....................................................................................137
7.9.4. PortE (NID = 0Eh): InAmpLeft ..........................................................................................138
7.9.5. PortE (NID = 0Eh): InAmpRight .......................................................................................138
7.9.6. PortE (NID = 0Eh): ConSelectCtrl ....................................................................................139
7.9.7. PortE (NID = 0Eh): PwrState ...........................................................................................139
7.9.8. PortE (NID = 0Eh): PinWCntrl ..........................................................................................140
7.9.9. PortE (NID = 0Eh): UnsolResp ........................................................................................141
7.9.10. PortE (NID = 0Eh): ChSense .........................................................................................141
7.9.11. PortE (NID = 0Eh): EAPDBTLLR ...................................................................................142
7.9.12. PortE (NID = 0Eh): ConfigDefault ..................................................................................142
7.10. PortF (NID = 0Fh): WCap ............................................................................................................145
7.10.1. PortF (NID = 0Fh): PinCap .............................................................................................146
7.10.2. PortF (NID = 0Fh): ConLst .............................................................................................148
7.10.3. PortF (NID = 0Fh): ConLstEntry0 ...................................................................................148
7.10.4. PortF (NID = 0Fh): InAmpLeft ........................................................................................149
7.10.5. PortF (NID = 0Fh): InAmpRight ......................................................................................149
7.10.6. PortF (NID = 0Fh): ConSelectCtrl ..................................................................................150
7.10.7. PortF (NID = 0Fh): PwrState ..........................................................................................150
7.10.8. PortF (NID = 0Fh): PinWCntrl ........................................................................................151
7.10.9. PortF (NID = 0Fh): UnsolResp .......................................................................................152
7.10.10. PortF (NID = 0Fh): ChSense ........................................................................................153
7.10.11. PortF (NID = 0Fh): EAPDBTLLR .................................................................................153
7.10.12. PortF (NID = 0Fh): ConfigDefault .................................................................................154
7.11. MonoOut (NID = 10h): WCap ......................................................................................................157
7.11.1. MonoOut (NID = 10h): PinCap .......................................................................................158
7.11.2. MonoOut (NID = 10h): ConLst .......................................................................................159
7.11.3. MonoOut (NID = 10h): ConLstEntry0 .............................................................................160
7.11.4. MonoOut (NID = 10h): PwrState ....................................................................................160
7.11.5. MonoOut (NID = 10h): PinWCntrl ..................................................................................161
IDT™ CONFIDENTIAL
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
5
V 0.987 11/09
92HD81
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