92hd88b4x5ndg Integrated Device Technology, 92hd88b4x5ndg Datasheet - Page 3

• Manufacturer Part Number: 92hd88b4x5ndg
• Description: Single Chip Pc Audio System Codec+mono Speaker Amplifier+capless Hp+ldo
• Manufacturer: Integrated Device Technology

IDT PROPRIETARY / IDT
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
TABLE OF CONTENTS
92HD88
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
1. DESCRIPTION .......................................................................................................................... 6
2. DETAILED DESCRIPTION ....................................................................................................... 8
3. CHARACTERISTICS ............................................................................................................... 36
1.1. Overview ............................................................................................................................................6
1.2. Orderable Part Numbers ....................................................................................................................6
1.3. Block Diagram ...................................................................................................................................7
2.1. Port Functionality ...............................................................................................................................8
2.2. Mono Output ....................................................................................................................................13
2.3. Analog Mixer ....................................................................................................................................13
2.4. ADC Multiplexers .............................................................................................................................14
2.5. Power Management .........................................................................................................................14
2.6. AFG D0 ............................................................................................................................................15
2.7. AFG D1 ............................................................................................................................................15
2.8. AFG D2 ............................................................................................................................................15
2.9. AFG D3 ............................................................................................................................................15
2.10. Vendor Specific Function Group Power States D4/D5 ..................................................................16
2.11. Low-voltage HDA Signaling ...........................................................................................................17
2.12. Multi-channel capture ....................................................................................................................17
2.13. Digital Microphone Support ...........................................................................................................19
2.14. Analog PC-Beep ............................................................................................................................24
2.15. Digital PC-Beep .............................................................................................................................24
2.16. Headphone Drivers ........................................................................................................................24
2.17. EAPD .............................................................................................................................................25
2.18. BTL Amplifier .................................................................................................................................28
2.19. GPIO ..............................................................................................................................................29
2.20. HD Audio ECR 15b support ...........................................................................................................30
2.21. Digital Core Voltage Regulator ......................................................................................................30
2.22. Aux Audio Support .........................................................................................................................30
3.1. Electrical Specifications ...................................................................................................................36
3.2. 92HD88 Analog Performance Characteristics (PRELIMINARY) .....................................................37
3.3. AC Timing Specs .............................................................................................................................42
2.1.1. Port Characteristics ..............................................................................................................8
2.1.2. Vref_Out ...............................................................................................................................9
2.1.3. Jack Detect ..........................................................................................................................9
2.1.4. SPDIF Output .....................................................................................................................10
2.9.1. AFG D3cold .......................................................................................................................16
2.19.1. GPIO Pin mapping and shared functions .........................................................................29
2.19.2. SPDIF/Digital Microphone/GPIO Selection ......................................................................29
2.19.3. Digital Microphone/GPIO Selection .................................................................................29
2.22.1. General conditions in Aux Audio Mode: ...........................................................................31
2.22.2. “Playback Path” Port Behavior .........................................................................................31
2.22.3. When Port E presence detect = 0 ....................................................................................32
2.22.4. When Port E presence detect = 1 ....................................................................................32
2.22.5. SYSTEM DIAGRAMS ......................................................................................................34
2.22.6. EAPD ...............................................................................................................................35
2.22.7. Analog PC_Beep .............................................................................................................35
2.22.8. Firmware/Software Requirements: ...................................................................................35
3.1.1. Absolute Maximum Ratings ...............................................................................................36
3.1.2. Recommended Operating Conditions ................................................................................36
3.3.1. HD Audio Bus Timing .........................................................................................................42
3.3.2. SPDIF Timing .....................................................................................................................43
3.3.3. Digital Microphone Timing .................................................................................................43
3.3.4. Class-AB BTL Amplifier Performance ...............................................................................44
CONFIDENTIAL
3
92HD88
PC AUDIO
V 0.94 07/11