92hd98 Integrated Device Technology, 92hd98 Datasheet - Page 3

• Manufacturer Part Number: 92hd98
• Description: Datasheet
• Manufacturer: Integrated Device Technology

92HD98
SINGLE CHIP PC AUDIO SYSTEM, CODEC+MONO SPEAKER AMPLIFIER+CAPLESS HP+LDO
IDT CONFIDENTIAL
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
TABLE OF CONTENTS
1. DESCRIPTION ........................................................................................................................ 11
2. DETAILED DESCRIPTION ..................................................................................................... 12
3. CHARACTERISTICS ............................................................................................................... 40
1.1. Overview ..........................................................................................................................................11
1.2. Orderable Part Numbers ..................................................................................................................11
2.1. Port Functionality .............................................................................................................................12
2.2. Mixer ................................................................................................................................................16
2.3. ADC Multiplexers .............................................................................................................................17
2.4. Power Management .........................................................................................................................17
2.5. AFG D0 ............................................................................................................................................18
2.6. AFG D1 ............................................................................................................................................18
2.7. AFG D2 ............................................................................................................................................18
2.8. AFG D3 ............................................................................................................................................18
2.9. Vendor Specific Function Group Power States D4/D5 ....................................................................19
2.10. Low-voltage HDA Signaling ...........................................................................................................19
2.11. Multi-channel capture ....................................................................................................................19
2.12. EAPD .............................................................................................................................................21
2.13. Digital Microphone Support ...........................................................................................................24
2.14. Analog PC-Beep ............................................................................................................................28
2.15. Digital PC-Beep .............................................................................................................................30
2.16. Headphone Drivers ........................................................................................................................31
2.17. BTL Amplifier .................................................................................................................................31
2.18. BTL Amplifier High-Pass Filter .......................................................................................................31
2.19. EQ ..................................................................................................................................................32
2.20. Combo Jack Detection ...................................................................................................................32
2.21. GPIO ..............................................................................................................................................33
2.22. HD Audio HDA015-B support ........................................................................................................33
2.23. Digital Core Voltage Regulator ......................................................................................................34
2.24. Aux Audio Support .........................................................................................................................35
3.1. Electrical Specifications ...................................................................................................................40
3.2. 92HD98 Analog Performance Characteristics
3.3. Class-D BTL Amplifier Performance ................................................................................................45
3.4. Capless Headphone Supply Characteristics ....................................................................................45
3.5. AC Timing Specs .............................................................................................................................45
2.1.1. Port Characteristics ............................................................................................................12
2.1.2. Vref_Out .............................................................................................................................14
2.1.3. Jack Detect ........................................................................................................................14
2.1.4. SPDIF Output .....................................................................................................................14
2.8.1. AFG D3cold .......................................................................................................................18
2.18.1. Filter Description ..............................................................................................................32
2.21.1. GPIO Pin mapping and shared functions .........................................................................33
2.21.2. SPDIF/Digital Microphone/GPIO Selection ......................................................................33
2.21.3. Digital Microphone/GPIO Selection .................................................................................33
2.24.1. General conditions in Aux Audio Mode: ...........................................................................35
2.24.2. Entering Aux Audio Mode ................................................................................................36
2.24.3. “Playback Path” Port Behavior (AnaIog I/O) ....................................................................37
2.24.4. When Port E presence detect = 0 ....................................................................................37
2.24.5. When Port E presence detect = 1 ....................................................................................37
2.24.6. SYSTEM DIAGRAMS (Analog I/O) ..................................................................................38
2.24.7. EAPD ...............................................................................................................................39
2.24.8. Analog PC_Beep .............................................................................................................39
2.24.9. Class-D BTL Issues .........................................................................................................39
2.24.10. Firmware/Software Requirements: .................................................................................39
3.1.1. Absolute Maximum Ratings ...............................................................................................40
3.1.2. Recommended Operating Conditions ................................................................................40
3.5.1. HD Audio Bus Timing .........................................................................................................45
3.5.2. SPDIF Timing .....................................................................................................................46
(PRELIMINARY) ......................................................................41
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V 0.91 10/10
92HD98