IDTSTAC9274X5TAEB4X

IDTSTAC9274X5TAEB4X Datasheet

The STAC9271/74 areTheater Quality 10-channel audio CODECs that enable systems with audio playing simultaneously with VoIP or another stereo audio stream. IDT's proprietary technology provides high fidelity with an estimated DAC SNR up to 105dB. Up to four digital microphones are supported enabling high quality voice input for increased usability of voice applications.

Part	Datasheet
IDTSTAC9274X5TAEB4X	IDTSTAC9274X5TAEB4X (pdf)

Related Parts	Information
IDTSTAC9271X5TAEB4XR	IDTSTAC9271X5TAEB4XR
IDTSTAC9274D5TAEB4XR	IDTSTAC9274D5TAEB4XR
IDTSTAC9274X5TAEB4XR	IDTSTAC9274X5TAEB4XR
IDTSTAC9271D5TAEB4XR	IDTSTAC9271D5TAEB4XR
IDTSTAC9274D5TAEB4X	IDTSTAC9274D5TAEB4X
IDTSTAC9271X5TAEB4X	IDTSTAC9271X5TAEB4X
IDTSTAC9271D5TAEB4X	IDTSTAC9271D5TAEB4X

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10-CHANNEL HIGH DEFINITION AUDIO CODEC DATASHEET STAC9271/9274 The STAC9271/74 areTheater Quality 10-channel audio CODECs that enable systems with audio playing simultaneously with VoIP or another stereo audio stream. IDT's proprietary technology provides high fidelity with an estimated DAC SNR up to 105dB. Up to four digital microphones are supported enabling high quality voice input for increased usability of voice applications. • High performance HD Audio CODEC provides Theater Quality Audio • High performance technology • 105dB DAC SNR • 90dB ADC SNR • Five Stereo DACs and three stereo ADCs • Supports Audio with simultaneous Real Time Communication RTC channel such as VoIP or separate stereo audio stream • 24-bit resolution with up to 192 KHz sample rates • Digital Microphone Interface STAC9274 • Direct interface up to four Digital Microphones • Analog Stereo Microphone • Microphone Boost 0, 10, 20, 30, 40dB • Six adjustable Vref outputs for microphone bias • Integrated Headphone Amps 3 • S/PDIF In and Out • Optical “Lightpipe” Output Support STAC9274 • Volume Up/Down Control • Jack Insertion Detect and Impedance Sensing supports Jack Retasking and Universal Jacks • Digital PC Beep to all outputs • +5 V analog power supply options • Environmental 48-pin LQFP package Software Support • SKPI Kernel Processing Interface • Enables plug-ins that can operate globally on all audio streams of the system • 12 band 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 connections made • Dynamics Processing SKPI plug-in • Enables improved voice articulation • Compressor/limiter allows higher average noise level without resonances • Dolby PC Entertainment Experience Logo Program • Dolby Master StudioTM STAC9274D • Dolby Home TheaterTM STAC9271D, STAC9274D • Dolby Sound RoomTM STAC9271D, STAC9274D • Dolby Technologies • Dolby HeadphoneTM, Dolby Virtual SpeakerTM • Dolby ProLogic IITM, Dolby ProLogic IIxTM • Dolby Digital LiveTM • Intel Audio StudioTM from Sonic Focus • Maxx PlayerTM from Waves • Microphone Beam Forming, Acoustic Echo Cancellation, & Noise Suppression from KnowlesTM IDT 10-CHANNEL HIGH DEFINITION AUDIO CODEC 1 IDT CONFIDENTIAL STAC9271/9274 V 01/08 List of Figures Figure Single Digital Microphone data is ported to both left and right channels 25 Figure Stereo Digital Microphone Configuration 25 Figure Quad Digital Microphone Configuration 26 Figure 48-Pin LQFP Pinout 216 Figure 48-Pin LQFP Package Outline and Package Dimensions 219 Figure Reflow Profile 220 List of Tables IDT 10-CHANNEL HIGH DEFINITION AUDIO CODEC 8 IDT CONFIDENTIAL STAC9271/9274 V 01/08 STAC9271/9274 10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO Table AFG Cap Command Response Format 42 Table AFG PCMCap Command Verb Format 42 Table AFG PCMCap Command Response Format 42 Table AFG Stream Command Verb Format 43 Table AFG Stream Command Response Format 43 Table AFG InAmpCap Command Verb Format 44 Table AFG InAmpCap Command Response Format 44 Table AFG SupPwrState Command Verb Format 44 Table AFG SupPwrState Command Response Format 44 Table AFG GPIOCnt Command Verb Format 45 Table AFG GPIOCnt Command Response Format 45 Table AFG OutAmpCap Command Verb Format 46 Table AFG OutAmpCap Command Response Format 46 Table AFG PwrState Command Verb Format 46 Table AFG PwrState Command Response Format 46 Table AFG UnsolResp Command Verb Format 47 Table AFG UnsolResp Command Response Format 47 Table AFG GPIO Command Verb Format 47 Table AFG GPIO Command Response Format 48 Table AFG GPIOEn Command Verb Format 48 Table AFG GPIOEn Command Response Format 49 Table AFG GPIODir Command Verb Format 49 Table AFG GPIODir Command Response Format 49 Table AFG GPIOWakeEn Command Verb Format 50 Table AFG GPIOWakeEn Command Response Format 50 Table AFG GPIOUnsol Command Verb Format 51 Table AFG GPIOUnsol Command Response Format 51 Table AFG GPIOSticky Command Verb Format 52 Table AFG GPIOSticky Command Response Format 52 Table AFG SubID Command Verb Format 53 Table AFG SubID Command Response Format 54 Table AFG TCKT Command Verb Format 54 Table AFG TCKT Command Response Format 54 Table AFG Sply Command Verb Format 54 Table AFG Sply Command Response Format 55 Table AFG DACMode Command Verb Format 55 Table AFG DACMode Command Response Format 55 Table AFG GPIOPlrty Command Verb Format 56 Table AFG GPIOPlrty Command Response Format 56 Table AFG GPIODrive Command Verb Format 57 Table AFG GPIODrive Command Response Format 57 Table AFG DMic Command Verb Format 58 Table AFG DMic Command Response Format 58 Table DAC0 Cnvtr Command Verb Format 59 Table DAC0 Cnvtr Command Response Format 59 Table DAC0 OutAmpRight Command Verb Format 60 Table DAC0 OutAmpRight Command Response Format 60 Table DAC0 OutAmpLeft Command Verb Format 60 Table DAC0 OutAmpLeft Command Response Format 61 Table DAC0 WCap Command Verb Format 61 Table DAC0 WCap Command Response Format 61 Table DAC0 PwrState Command Verb Format 62 Table DAC0 PwrState Command Response Format 62 Table DAC0 CnvtrID Command Verb Format 62 Table DAC0 CnvtrID Command Response Format 63 IDT 10-CHANNEL HIGH DEFINITION AUDIO CODEC 9 IDT CONFIDENTIAL STAC9271/9274 V 01/08 STAC9271/9274 10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO Table DAC0 LR Command Verb Format 63 Table DAC0 LR Command Response Format 63 Table DAC1 Cnvtr Command Verb Format 63 Table DAC1 Cnvtr Command Response Format 64 Table DAC1 OutAmpRight Command Verb Format 65 Table DAC1 OutAmpRight Command Response Format 65 Table DAC1 OutAmpLeft Command Verb Format 65 Table DAC1 OutAmpLeft Command Response Format 65 Table DAC1 WCap Command Verb Format 65 Table DAC1 WCap Command Response Format 66 Table DAC1 PwrState Command Verb Format 66 Table DAC1 PwrState Command Response Format 67 Table DAC1 CnvtrID Command Verb Format 67 Table DAC1 CnvtrID Command Response Format 67 Table DAC1 LR Command Verb Format 68 Table DAC1 LR Command Response Format 68 Table DAC2 Cnvtr Command Verb Format 68 Table DAC2 Cnvtr Command Response Format 68 Table DAC2 OutAmpRight Command Verb Format 69 Table DAC2 OutAmpRight Command Response Format 70 Table DAC2 OutAmpLeft Command Verb Format 70 Table DAC2 OutAmpLeft Command Response Format 70 Table DAC2 WCap Command Verb Format 70 Table DAC2 WCap Command Response Format 70 Table DAC2 PwrState Command Verb Format 71 Table DAC2 PwrState Command Response Format 71 Table DAC2 CnvtrID Command Verb Format 72 Table DAC2 CnvtrID Command Response Format 72 Table DAC2 LR Command Verb Format 72 Table DAC2 LR Command Response Format 73 Table DAC3 Cnvtr Command Verb Format 73 Table DAC3 Cnvtr Command Response Format 73 Table DAC3 OutAmpRight Command Verb Format 74 Table DAC3 OutAmpRight Command Response Format 74 Table DAC3 OutAmpLeft Command Verb Format 75 Table DAC3 OutAmpLeft Command Response Format 75 Table DAC3 WCap Command Verb Format 75 Table DAC3 WCap Command Response Format 75 Table DAC3 PwrState Command Verb Format 76 Table DAC3 PwrState Command Response Format 76 Table DAC3 CnvtrID Command Verb Format 77 Table DAC3 CnvtrID Command Response Format 77 Table DAC3 LR Command Verb Format 77 Table DAC3 LR Command Response Format 77 Table DAC4 Cnvtr Command Verb Format 78 Table DAC4 Cnvtr Command Response Format 78 Table DAC4 OutAmpRight Command Verb Format 79 Table DAC4 OutAmpRight Command Response Format 79 Table DAC4 OutAmpLeft Command Verb Format 79 Table DAC4 OutAmpLeft Command Response Format 80 Table DAC4 WCap Command Verb Format 80 Table DAC4 WCap Command Response Format 80 Table DAC4 PwrState Command Verb Format 81 Table DAC4 PwrState Command Response Format 81 Table DAC4 CnvtrID Command Verb Format 81 Table DAC4 CnvtrID Command Response Format 82 Table DAC4 LR Command Verb Format 82 Table DAC4 LR Command Response Format 82 IDT 10-CHANNEL HIGH DEFINITION AUDIO CODEC 10 IDT CONFIDENTIAL STAC9271/9274 V 01/08 STAC9271/9274 10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO Table ADC0 Cnvtr Command Verb Format 82 Table ADC0 Cnvtr Command Response Format 83 Table ADC0 WCap Command Verb Format 84 Table ADC0 WCap Command Response Format 84 Table ADC0 ConLst Command Verb Format 85 Table ADC0 ConLst Command Response Format 85 Table ADC0 ConLstEntry Command Verb Format 85 Table ADC0 ConLstEntry Command Response Format 85 Table ADC0 ProcState Command Verb Format 85 Table ADC0 ProcState Command Response Format 86 Table ADC0 PwrState Command Verb Format 86 Table ADC0 PwrState Command Response Format 86 Table ADC0 CnvtrID Command Verb Format 87 Table ADC0 CnvtrID Command Response Format 87 Table ADC1 Cnvtr Command Verb Format 87 Table ADC1 Cnvtr Command Response Format 87 Table ADC1 WCap Command Verb Format 88 Table ADC1 WCap Command Response Format 89 Table ADC1 ConLst Command Verb Format 89 Table ADC1 ConLst Command Response Format 90 Table ADC1 ConLstEntry Command Verb Format 90 Table ADC1 ConLstEntry Command Response Format 90 Table ADC1 ProcState Command Verb Format 90 Table ADC1 ProcState Command Response Format 91 Table ADC1 PwrState Command Verb Format 91 Table ADC1 PwrState Command Response Format 91 Table ADC1 CnvtrID Command Verb Format 92 Table ADC1 CnvtrID Command Response Format 92 Table ADC2 Cnvtr Command Verb Format 92 Table ADC2 Cnvtr Command Response Format 92 Table ADC2 WCap Command Verb Format 93 Table ADC2 WCap Command Response Format 94 Table ADC2 ConLst Command Verb Format 94 Table ADC2 ConLst Command Response Format 95 Table ADC2 ConLstEntry Command Verb Format 95 Table ADC2 ConLstEntry Command Response Format 95 Table ADC2 ProcState Command Verb Format 95 Table ADC2 ProcState Command Response Format 96 Table ADC2 PwrState Command Verb Format 96 Table ADC2 PwrState Command Response Format 96 Table ADC2 CnvtrID Command Verb Format 97 Table ADC2 CnvtrID Command Response Format 97 Table SPDIFOut Cnvtr Command Verb Format 97 Table SPDIFOut Cnvtr Command Response Format 97 Table SPDIFOut WCap Command Verb Format 98 Table SPDIFOut WCap Command Response Format 99 Table SPDIFOut PCM Command Verb Format 99 Table SPDIFOut PCM Command Response Format 100 Table SPDIFOut Stream Command Verb Format 101 Table SPDIFOut Stream Command Response Format 101 Table SPDIFOut CnvtrID Command Verb Format 101 Table SPDIFOut CnvtrID Command Response Format 101 Table SPDIFOut DigCnvtr Command Verb Format 102 Table SPDIFOut DigCnvtr Command Response Format 102 Table SPDIFIn Cnvtr Command Verb Format 102 IDT 10-CHANNEL HIGH DEFINITION AUDIO CODEC 11 IDT CONFIDENTIAL STAC9271/9274 V 01/08 STAC9271/9274 10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO Table SPDIFIn Cnvtr Command Response Format 103 Table SPDIFIn WCap Command Verb Format 104 Table SPDIFIn WCap Command Response Format 104 Table SPDIFIn PCMCap Command Verb Format 105 Table SPDIFIn PCMCap Command Response Format 105 Table SPDIFIn Stream Command Verb Format 106 Table SPDIFIn Stream Command Response Format 106 Table SPDIFIn ConLst Command Verb Format 106 Table SPDIFIn ConLst Command Response Format 106 Table SPDIFIn ConLstEntry Command Verb Format 106 Table SPDIFIn ConLstEntry Command Response Format 107 Table SPDIFIn CnvtrID Command Verb Format 107 Table SPDIFIn CnvtrID Command Response Format 107 Table SPDIFIn DigCnvtr Command Verb Format 107 Table SPDIFIn DigCnvtr Command Response Format 108 Table SPDIFIn VCSR0 Command Verb Format 108 Table SPDIFIn VCSR0 Command Response Format 108 Table PortA WCap Command Verb Format 110 Table PortA WCap Command Response Format 111 Table PortA PinCap Command Verb Format 111 Table PortA PinCap Command Response Format 112 Table PortA ConLst Command Verb Format 112 Table PortA ConLst Command Response Format 112 Table PortA ConLstEntry Command Verb Format 113 Table PortA ConLstEntry Command Response Format 113 Table PortA ConSelectCtrl Command Verb Format 113 Table PortA ConSelectCtrl Command Response Format 113 Table PortA PinWCntrl Command Verb Format 114 Table PortA PinWCntrl Command Response Format 114 Table PortA UnsolResp Command Verb Format 114 Table PortA UnsolResp Command Response Format 115 Table PortA ChSense Command Verb Format 115 Table PortA ChSense Command Response Format 115 Table PortA ConfigDefault Command Verb Format 116 Table PortA ConfigDefault Command Response Format 116 Table PortB WCap Command Verb Format 116 Table PortB WCap Command Response Format 117 Table PortB PinCap Command Verb Format 117 Table PortB PinCap Command Response Format 118 Table PortB ConLst Command Verb Format 118 Table PortB ConLst Command Response Format 118 Table PortB ConLstEntry Command Verb Format 119 Table PortB ConLstEntry Command Response Format 119 Table PortB ConSelectCtrl Command Verb Format 119 Table PortB ConSelectCtrl Command Response Format 119 Table PortB PinWCntrl Command Verb Format 120 Table PortB PinWCntrl Command Response Format 120 Table PortB UnsolResp Command Verb Format 120 Table PortB UnsolResp Command Response Format 121 Table PortB ChSense Command Verb Format 121 Table PortB ChSense Command Response Format 121 Table PortB ConfigDefault Command Verb Format 122 Table PortB ConfigDefault Command Response Format 122 Table PortC WCap Command Verb Format 122 Table PortC WCap Command Response Format 123 IDT 10-CHANNEL HIGH DEFINITION AUDIO CODEC 12 IDT CONFIDENTIAL STAC9271/9274 V 01/08 STAC9271/9274 10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO Table PortC PinCap Command Verb Format 123 Table PortC PinCap Command Response Format 124 Table PortC ConLst Command Verb Format 124 Table PortC ConLst Command Response Format 124 Table PortC ConLstEntry Command Verb Format 125 Table PortC ConLstEntry Command Response Format 125 Table PortC PinWCntrl Command Verb Format 125 Table PortC PinWCntrl Command Response Format 125 Table PortC UnsolResp Command Verb Format 126 Table PortC UnsolResp Command Response Format 126 Table PortC ChSense Command Verb Format 126 Table PortC ChSense Command Response Format 126 Table PortC ConfigDefault Command Verb Format 127 Table PortC ConfigDefault Command Response Format 127 Table PortD WCap Command Verb Format 128 Table PortD WCap Command Response Format 128 Table PortD PinCap Command Verb Format 129 Table PortD PinCap Command Response Format 129 Table PortD ConLst Command Verb Format 129 Table PortD ConLst Command Response Format 130 Table PortD ConLstEntry Command Verb Format 130 Table PortD ConLstEntry Command Response Format 130 Table PortD PinWCntrl Command Verb Format 130 Table PortD PinWCntrl Command Response Format 131 Table PortD UnsolResp Command Verb Format 131 Table PortD UnsolResp Command Response Format 131 Table PortD ChSense Command Verb Format 132 Table PortD ChSense Command Response Format 132 Table PortD ConfigDefault Command Verb Format 132 Table PortD ConfigDefault Command Response Format 133 Table PortE WCap Command Verb Format 133 Table PortE WCap Command Response Format 133 Table PortE PinCap Command Verb Format 134 Table PortE PinCap Command Response Format 134 Table PortE ConLst Command Verb Format 135 Table PortE ConLst Command Response Format 135 Table PortE ConLstEntry Command Verb Format 135 Table PortE ConLstEntry Command Response Format 135 Table PortE PinWCntrl Command Verb Format 136 Table PortE PinWCntrl Command Response Format 136 Table PortE UnsolResp Command Verb Format 136 Table PortE UnsolResp Command Response Format 136 Table PortE ChSense Command Verb Format 137 Table PortE ChSense Command Response Format 137 Table PortE ConfigDefault Command Verb Format 137 Table PortE ConfigDefault Command Response Format 138 Table PortF WCap Command Verb Format 138 Table PortF WCap Command Response Format 138 Table PortF PinCap Command Verb Format 139 Table PortF PinCap Command Response Format 139 Table PortF ConLst Command Verb Format 140 Table PortF ConLst Command Response Format 140 Table PortF ConLstEntry Command Verb Format 141 Table PortF ConLstEntry Command Response Format 141 Table PortF PinWCntrl Command Verb Format 141 IDT 10-CHANNEL HIGH DEFINITION AUDIO CODEC 13 IDT CONFIDENTIAL STAC9271/9274 ORDERING INFORMATION Part Order Numbers Part Order Number STAC9274X5TAEyyX STAC9274D5TAEyyX STAC9271X5TAEyyX STAC9271D5TAEyyX Voltage 5V DAC SNR 105dB 95dB DigMic Yes Muxed Yes Muxed ADAT Yes No Dolby No Master Studio No Home Theater/Sound Room IDT 10-CHANNEL HIGH DEFINITION AUDIO CODEC 220 IDT CONFIDENTIAL STAC9271/9274 V 01/08 STAC9271/9274 10-CHANNEL HIGH DEFINITION AUDIO CODEC PIN INFORMATION Pin Diagram Figure 48-Pin LQFP Pinout PC AUDIO VREFOUT-A AVDD2 PORTA_L DVDD_CORE/VPP SPDIF IN//GPIO0/EAPD/DMIC_CLK SPDIF OUT/ADAT_OUT PORTA_R AVSS2 PORTG_L PORTG_R PORTH_L PORTH_R DVDD_CORE VOLUME UP/DMIC_0/GPIO1 VOLUME DOWN/DMIC_1/GPIO2 DVSS BITCLK DVSS DVDD_CORE SYNC RESET# PCBEEP 48 LQFP PORTD_R PORTD_L SENSE_B CAP2 VREFOUT-D VREFOUT-E VREFOUT-F VREFOUT-C VREFOUT-B VREFFILT

PDF Datasheet Preview

10-CHANNEL HIGH DEFINITION AUDIO CODEC

DATASHEET

STAC9271/9274

The STAC9271/74 areTheater Quality 10-channel audio CODECs that enable systems with audio playing simultaneously with VoIP or another stereo audio stream. IDT's proprietary technology provides high fidelity with an estimated DAC SNR up to 105dB. Up to four digital microphones are supported enabling high quality voice input for increased usability of voice applications.
• High performance HD Audio CODEC provides

Theater Quality Audio
• High performance technology
• 105dB DAC SNR
• 90dB ADC SNR
• Five Stereo DACs and three stereo ADCs
• Supports Audio with simultaneous Real Time

Communication RTC channel such as VoIP or separate stereo audio stream
• 24-bit resolution with up to 192 KHz sample rates
• Digital Microphone Interface STAC9274
• Direct interface up to four Digital Microphones
• Analog Stereo Microphone
• Microphone Boost 0, 10, 20, 30, 40dB
• Six adjustable Vref outputs for microphone bias
• Integrated Headphone Amps 3
• S/PDIF In and Out
• Optical “Lightpipe” Output

Support STAC9274
• Volume Up/Down Control
• Jack Insertion Detect and Impedance Sensing
supports Jack Retasking and Universal Jacks
• Digital PC Beep to all outputs
• +5 V analog power supply options
• Environmental 48-pin LQFP package

Software Support
• SKPI Kernel Processing Interface
• Enables plug-ins that can operate globally on all audio
streams of the system
• 12 band 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 connections made
• Dynamics Processing SKPI plug-in
• Enables improved voice articulation
• Compressor/limiter allows higher average noise level
without resonances
• Dolby PC Entertainment Experience Logo Program
• Dolby Master StudioTM STAC9274D
• Dolby Home TheaterTM STAC9271D, STAC9274D
• Dolby Sound RoomTM STAC9271D, STAC9274D
• Dolby Technologies
• Dolby HeadphoneTM, Dolby Virtual SpeakerTM
• Dolby ProLogic IITM, Dolby ProLogic IIxTM
• Dolby Digital LiveTM
• Intel Audio StudioTM from Sonic Focus
• Maxx PlayerTM from Waves
• Microphone Beam Forming, Acoustic Echo

Cancellation, & Noise Suppression from KnowlesTM

IDT 10-CHANNEL HIGH DEFINITION AUDIO CODEC
1 IDT CONFIDENTIAL

STAC9271/9274

V 01/08
List of Figures

Figure Single Digital Microphone data is ported to both left and right channels 25 Figure Stereo Digital Microphone Configuration 25 Figure Quad Digital Microphone Configuration 26 Figure 48-Pin LQFP Pinout 216 Figure 48-Pin LQFP Package Outline and Package Dimensions 219 Figure Reflow Profile 220

List of Tables

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PC AUDIO

Table AFG Cap Command Response Format 42 Table AFG PCMCap Command Verb Format 42 Table AFG PCMCap Command Response Format 42 Table AFG Stream Command Verb Format 43 Table AFG Stream Command Response Format 43 Table AFG InAmpCap Command Verb Format 44 Table AFG InAmpCap Command Response Format 44 Table AFG SupPwrState Command Verb Format 44 Table AFG SupPwrState Command Response Format 44 Table AFG GPIOCnt Command Verb Format 45 Table AFG GPIOCnt Command Response Format 45 Table AFG OutAmpCap Command Verb Format 46 Table AFG OutAmpCap Command Response Format 46 Table AFG PwrState Command Verb Format 46 Table AFG PwrState Command Response Format 46 Table AFG UnsolResp Command Verb Format 47 Table AFG UnsolResp Command Response Format 47 Table AFG GPIO Command Verb Format 47 Table AFG GPIO Command Response Format 48 Table AFG GPIOEn Command Verb Format 48 Table AFG GPIOEn Command Response Format 49 Table AFG GPIODir Command Verb Format 49 Table AFG GPIODir Command Response Format 49 Table AFG GPIOWakeEn Command Verb Format 50 Table AFG GPIOWakeEn Command Response Format 50 Table AFG GPIOUnsol Command Verb Format 51 Table AFG GPIOUnsol Command Response Format 51 Table AFG GPIOSticky Command Verb Format 52 Table AFG GPIOSticky Command Response Format 52 Table AFG SubID Command Verb Format 53 Table AFG SubID Command Response Format 54 Table AFG TCKT Command Verb Format 54 Table AFG TCKT Command Response Format 54 Table AFG Sply Command Verb Format 54 Table AFG Sply Command Response Format 55 Table AFG DACMode Command Verb Format 55 Table AFG DACMode Command Response Format 55 Table AFG GPIOPlrty Command Verb Format 56 Table AFG GPIOPlrty Command Response Format 56 Table AFG GPIODrive Command Verb Format 57 Table AFG GPIODrive Command Response Format 57 Table AFG DMic Command Verb Format 58 Table AFG DMic Command Response Format 58 Table DAC0 Cnvtr Command Verb Format 59 Table DAC0 Cnvtr Command Response Format 59 Table DAC0 OutAmpRight Command Verb Format 60 Table DAC0 OutAmpRight Command Response Format 60 Table DAC0 OutAmpLeft Command Verb Format 60 Table DAC0 OutAmpLeft Command Response Format 61 Table DAC0 WCap Command Verb Format 61 Table DAC0 WCap Command Response Format 61 Table DAC0 PwrState Command Verb Format 62 Table DAC0 PwrState Command Response Format 62 Table DAC0 CnvtrID Command Verb Format 62 Table DAC0 CnvtrID Command Response Format 63

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PC AUDIO

Table DAC0 LR Command Verb Format 63 Table DAC0 LR Command Response Format 63 Table DAC1 Cnvtr Command Verb Format 63 Table DAC1 Cnvtr Command Response Format 64 Table DAC1 OutAmpRight Command Verb Format 65 Table DAC1 OutAmpRight Command Response Format 65 Table DAC1 OutAmpLeft Command Verb Format 65 Table DAC1 OutAmpLeft Command Response Format 65 Table DAC1 WCap Command Verb Format 65 Table DAC1 WCap Command Response Format 66 Table DAC1 PwrState Command Verb Format 66 Table DAC1 PwrState Command Response Format 67 Table DAC1 CnvtrID Command Verb Format 67 Table DAC1 CnvtrID Command Response Format 67 Table DAC1 LR Command Verb Format 68 Table DAC1 LR Command Response Format 68 Table DAC2 Cnvtr Command Verb Format 68 Table DAC2 Cnvtr Command Response Format 68 Table DAC2 OutAmpRight Command Verb Format 69 Table DAC2 OutAmpRight Command Response Format 70 Table DAC2 OutAmpLeft Command Verb Format 70 Table DAC2 OutAmpLeft Command Response Format 70 Table DAC2 WCap Command Verb Format 70 Table DAC2 WCap Command Response Format 70 Table DAC2 PwrState Command Verb Format 71 Table DAC2 PwrState Command Response Format 71 Table DAC2 CnvtrID Command Verb Format 72 Table DAC2 CnvtrID Command Response Format 72 Table DAC2 LR Command Verb Format 72 Table DAC2 LR Command Response Format 73 Table DAC3 Cnvtr Command Verb Format 73 Table DAC3 Cnvtr Command Response Format 73 Table DAC3 OutAmpRight Command Verb Format 74 Table DAC3 OutAmpRight Command Response Format 74 Table DAC3 OutAmpLeft Command Verb Format 75 Table DAC3 OutAmpLeft Command Response Format 75 Table DAC3 WCap Command Verb Format 75 Table DAC3 WCap Command Response Format 75 Table DAC3 PwrState Command Verb Format 76 Table DAC3 PwrState Command Response Format 76 Table DAC3 CnvtrID Command Verb Format 77 Table DAC3 CnvtrID Command Response Format 77 Table DAC3 LR Command Verb Format 77 Table DAC3 LR Command Response Format 77 Table DAC4 Cnvtr Command Verb Format 78 Table DAC4 Cnvtr Command Response Format 78 Table DAC4 OutAmpRight Command Verb Format 79 Table DAC4 OutAmpRight Command Response Format 79 Table DAC4 OutAmpLeft Command Verb Format 79 Table DAC4 OutAmpLeft Command Response Format 80 Table DAC4 WCap Command Verb Format 80 Table DAC4 WCap Command Response Format 80 Table DAC4 PwrState Command Verb Format 81 Table DAC4 PwrState Command Response Format 81 Table DAC4 CnvtrID Command Verb Format 81 Table DAC4 CnvtrID Command Response Format 82 Table DAC4 LR Command Verb Format 82 Table DAC4 LR Command Response Format 82

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PC AUDIO

Table ADC0 Cnvtr Command Verb Format 82 Table ADC0 Cnvtr Command Response Format 83 Table ADC0 WCap Command Verb Format 84 Table ADC0 WCap Command Response Format 84 Table ADC0 ConLst Command Verb Format 85 Table ADC0 ConLst Command Response Format 85 Table ADC0 ConLstEntry Command Verb Format 85 Table ADC0 ConLstEntry Command Response Format 85 Table ADC0 ProcState Command Verb Format 85 Table ADC0 ProcState Command Response Format 86 Table ADC0 PwrState Command Verb Format 86 Table ADC0 PwrState Command Response Format 86 Table ADC0 CnvtrID Command Verb Format 87 Table ADC0 CnvtrID Command Response Format 87 Table ADC1 Cnvtr Command Verb Format 87 Table ADC1 Cnvtr Command Response Format 87 Table ADC1 WCap Command Verb Format 88 Table ADC1 WCap Command Response Format 89 Table ADC1 ConLst Command Verb Format 89 Table ADC1 ConLst Command Response Format 90 Table ADC1 ConLstEntry Command Verb Format 90 Table ADC1 ConLstEntry Command Response Format 90 Table ADC1 ProcState Command Verb Format 90 Table ADC1 ProcState Command Response Format 91 Table ADC1 PwrState Command Verb Format 91 Table ADC1 PwrState Command Response Format 91 Table ADC1 CnvtrID Command Verb Format 92 Table ADC1 CnvtrID Command Response Format 92 Table ADC2 Cnvtr Command Verb Format 92 Table ADC2 Cnvtr Command Response Format 92 Table ADC2 WCap Command Verb Format 93 Table ADC2 WCap Command Response Format 94 Table ADC2 ConLst Command Verb Format 94 Table ADC2 ConLst Command Response Format 95 Table ADC2 ConLstEntry Command Verb Format 95 Table ADC2 ConLstEntry Command Response Format 95 Table ADC2 ProcState Command Verb Format 95 Table ADC2 ProcState Command Response Format 96 Table ADC2 PwrState Command Verb Format 96 Table ADC2 PwrState Command Response Format 96 Table ADC2 CnvtrID Command Verb Format 97 Table ADC2 CnvtrID Command Response Format 97 Table SPDIFOut Cnvtr Command Verb Format 97 Table SPDIFOut Cnvtr Command Response Format 97 Table SPDIFOut WCap Command Verb Format 98 Table SPDIFOut WCap Command Response Format 99 Table SPDIFOut PCM Command Verb Format 99 Table SPDIFOut PCM Command Response Format 100 Table SPDIFOut Stream Command Verb Format 101 Table SPDIFOut Stream Command Response Format 101 Table SPDIFOut CnvtrID Command Verb Format 101 Table SPDIFOut CnvtrID Command Response Format 101 Table SPDIFOut DigCnvtr Command Verb Format 102 Table SPDIFOut DigCnvtr Command Response Format 102 Table SPDIFIn Cnvtr Command Verb Format 102

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Table SPDIFIn Cnvtr Command Response Format 103 Table SPDIFIn WCap Command Verb Format 104 Table SPDIFIn WCap Command Response Format 104 Table SPDIFIn PCMCap Command Verb Format 105 Table SPDIFIn PCMCap Command Response Format 105 Table SPDIFIn Stream Command Verb Format 106 Table SPDIFIn Stream Command Response Format 106 Table SPDIFIn ConLst Command Verb Format 106 Table SPDIFIn ConLst Command Response Format 106 Table SPDIFIn ConLstEntry Command Verb Format 106 Table SPDIFIn ConLstEntry Command Response Format 107 Table SPDIFIn CnvtrID Command Verb Format 107 Table SPDIFIn CnvtrID Command Response Format 107 Table SPDIFIn DigCnvtr Command Verb Format 107 Table SPDIFIn DigCnvtr Command Response Format 108 Table SPDIFIn VCSR0 Command Verb Format 108 Table SPDIFIn VCSR0 Command Response Format 108 Table PortA WCap Command Verb Format 110 Table PortA WCap Command Response Format 111 Table PortA PinCap Command Verb Format 111 Table PortA PinCap Command Response Format 112 Table PortA ConLst Command Verb Format 112 Table PortA ConLst Command Response Format 112 Table PortA ConLstEntry Command Verb Format 113 Table PortA ConLstEntry Command Response Format 113 Table PortA ConSelectCtrl Command Verb Format 113 Table PortA ConSelectCtrl Command Response Format 113 Table PortA PinWCntrl Command Verb Format 114 Table PortA PinWCntrl Command Response Format 114 Table PortA UnsolResp Command Verb Format 114 Table PortA UnsolResp Command Response Format 115 Table PortA ChSense Command Verb Format 115 Table PortA ChSense Command Response Format 115 Table PortA ConfigDefault Command Verb Format 116 Table PortA ConfigDefault Command Response Format 116 Table PortB WCap Command Verb Format 116 Table PortB WCap Command Response Format 117 Table PortB PinCap Command Verb Format 117 Table PortB PinCap Command Response Format 118 Table PortB ConLst Command Verb Format 118 Table PortB ConLst Command Response Format 118 Table PortB ConLstEntry Command Verb Format 119 Table PortB ConLstEntry Command Response Format 119 Table PortB ConSelectCtrl Command Verb Format 119 Table PortB ConSelectCtrl Command Response Format 119 Table PortB PinWCntrl Command Verb Format 120 Table PortB PinWCntrl Command Response Format 120 Table PortB UnsolResp Command Verb Format 120 Table PortB UnsolResp Command Response Format 121 Table PortB ChSense Command Verb Format 121 Table PortB ChSense Command Response Format 121 Table PortB ConfigDefault Command Verb Format 122 Table PortB ConfigDefault Command Response Format 122 Table PortC WCap Command Verb Format 122 Table PortC WCap Command Response Format 123

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STAC9271/9274 10-CHANNEL HIGH DEFINITION AUDIO CODEC

PC AUDIO

Table PortC PinCap Command Verb Format 123 Table PortC PinCap Command Response Format 124 Table PortC ConLst Command Verb Format 124 Table PortC ConLst Command Response Format 124 Table PortC ConLstEntry Command Verb Format 125 Table PortC ConLstEntry Command Response Format 125 Table PortC PinWCntrl Command Verb Format 125 Table PortC PinWCntrl Command Response Format 125 Table PortC UnsolResp Command Verb Format 126 Table PortC UnsolResp Command Response Format 126 Table PortC ChSense Command Verb Format 126 Table PortC ChSense Command Response Format 126 Table PortC ConfigDefault Command Verb Format 127 Table PortC ConfigDefault Command Response Format 127 Table PortD WCap Command Verb Format 128 Table PortD WCap Command Response Format 128 Table PortD PinCap Command Verb Format 129 Table PortD PinCap Command Response Format 129 Table PortD ConLst Command Verb Format 129 Table PortD ConLst Command Response Format 130 Table PortD ConLstEntry Command Verb Format 130 Table PortD ConLstEntry Command Response Format 130 Table PortD PinWCntrl Command Verb Format 130 Table PortD PinWCntrl Command Response Format 131 Table PortD UnsolResp Command Verb Format 131 Table PortD UnsolResp Command Response Format 131 Table PortD ChSense Command Verb Format 132 Table PortD ChSense Command Response Format 132 Table PortD ConfigDefault Command Verb Format 132 Table PortD ConfigDefault Command Response Format 133 Table PortE WCap Command Verb Format 133 Table PortE WCap Command Response Format 133 Table PortE PinCap Command Verb Format 134 Table PortE PinCap Command Response Format 134 Table PortE ConLst Command Verb Format 135 Table PortE ConLst Command Response Format 135 Table PortE ConLstEntry Command Verb Format 135 Table PortE ConLstEntry Command Response Format 135 Table PortE PinWCntrl Command Verb Format 136 Table PortE PinWCntrl Command Response Format 136 Table PortE UnsolResp Command Verb Format 136 Table PortE UnsolResp Command Response Format 136 Table PortE ChSense Command Verb Format 137 Table PortE ChSense Command Response Format 137 Table PortE ConfigDefault Command Verb Format 137 Table PortE ConfigDefault Command Response Format 138 Table PortF WCap Command Verb Format 138 Table PortF WCap Command Response Format 138 Table PortF PinCap Command Verb Format 139 Table PortF PinCap Command Response Format 139 Table PortF ConLst Command Verb Format 140 Table PortF ConLst Command Response Format 140 Table PortF ConLstEntry Command Verb Format 141 Table PortF ConLstEntry Command Response Format 141 Table PortF PinWCntrl Command Verb Format 141

IDT 10-CHANNEL HIGH DEFINITION AUDIO CODEC
13 IDT CONFIDENTIAL

STAC9271/9274
ORDERING INFORMATION

Part Order Numbers

Part Order Number STAC9274X5TAEyyX STAC9274D5TAEyyX STAC9271X5TAEyyX STAC9271D5TAEyyX

Voltage 5V

DAC SNR 105dB 95dB

DigMic Yes Muxed Yes Muxed

ADAT Yes No

Dolby No

Master Studio No

Home Theater/Sound Room
IDT 10-CHANNEL HIGH DEFINITION AUDIO CODEC
220 IDT CONFIDENTIAL

STAC9271/9274

V 01/08

STAC9271/9274 10-CHANNEL HIGH DEFINITION AUDIO CODEC

PIN INFORMATION Pin Diagram

Figure 48-Pin LQFP Pinout

PC AUDIO

VREFOUT-A

AVDD2

PORTA_L

DVDD_CORE/VPP

SPDIF IN//GPIO0/EAPD/DMIC_CLK

SPDIF OUT/ADAT_OUT

PORTA_R

AVSS2

PORTG_L

PORTG_R

PORTH_L

PORTH_R

DVDD_CORE

VOLUME UP/DMIC_0/GPIO1

VOLUME DOWN/DMIC_1/GPIO2

DVSS

BITCLK

DVSS

DVDD_CORE

SYNC

RESET#

PCBEEP
48 LQFP

PORTD_R

PORTD_L

SENSE_B

CAP2

VREFOUT-D

VREFOUT-E

VREFOUT-F

VREFOUT-C

VREFOUT-B

VREFFILT

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Datasheet ID: IDTSTAC9274X5TAEB4X 637517