IDT92HD81B1X5NLGXYCX8 IDT, Integrated Device Technology Inc, IDT92HD81B1X5NLGXYCX8 Datasheet - Page 3

• Manufacturer Part Number: IDT92HD81B1X5NLGXYCX8
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT92HD81B1X5NLGXYCX8

• Lead Free Status / RoHS Status: Compliant

92HD81
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
TABLE OF CONTENTS
IDT™ CONFIDENTIAL
1. DESCRIPTION ........................................................................................................................ 11
2. DETAILED DESCRIPTION ..................................................................................................... 13
3. CHARACTERISTICS ............................................................................................................... 40
4. FUNCTIONAL BLOCK DIAGRAMS ....................................................................................... 49
5. WIDGET INFORMATION AND SUPPORTED COMMAND VERBS ....................................... 50
6. PORT CONFIGURATIONS ..................................................................................................... 51
1.1. Overview ..........................................................................................................................................11
1.2. Orderable Part Numbers ..................................................................................................................11
1.3. Block Diagram .................................................................................................................................12
2.1. Port Functionality .............................................................................................................................13
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
2.10. 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
2.20. HD Audio ECR 15b support ...........................................................................................................35
2.21. Digital Core Voltage Regulator ......................................................................................................35
2.22. Aux Audio Support .........................................................................................................................36
3.1. Electrical Specifications ...................................................................................................................40
3.2. 92HD81 Analog Performance Characteristics (PRELIMINARY) .....................................................41
3.3. AC Timing Specs .............................................................................................................................46
6.1. Suggested Desktop Configurations .................................................................................................51
6.2. Suggested Mobile Port Configurations ............................................................................................52
2.1.1. Port Characteristics ............................................................................................................15
2.1.2. Vref_Out .............................................................................................................................15
2.1.3. Jack Detect ........................................................................................................................15
2.1.4. SPDIF Output .....................................................................................................................16
2.9.1. AFG D3cold .......................................................................................................................21
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
2.22.1. 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
3.1.1. Absolute Maximum Ratings ...............................................................................................40
3.1.2. Recommended Operating Conditions ................................................................................40
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
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92HD81