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92HD98

SINGLE CHIP PC AUDIO SYSTEM

Integrated Device Technology 

92HD98

SINGLE CHIP PC AUDIO SYSTEM, CODEC+MONO SPEAKER AMPLIFIER+CAPLESS HP+LDO

LIST OF FIGURES

Figure 1. Multi-channel capture ......................................................................................................................20

Figure 2. Multi-channel timing diagram ..........................................................................................................20

Figure 3. HP EAPD Example to be replaced by single pin for internal amp ..................................................24

Figure 4. EAPD implementation .....................................................................................................................24

Figure 5. Single Digital Microphone (data is ported to both left and right channels .......................................26

Figure 6. Stereo Digital Microphone Configuration ........................................................................................27

Figure 7. Quad Digital Microphone Configuration ..........................................................................................28

Figure 8. Analog PC Beep Active ..................................................................................................................29

Figure 9. Analog PC Beep Flow chart ............................................................................................................30

Figure 10. Combo Jack ..................................................................................................................................32

Figure 11. Switching between Normal and Aux Audio Modes .......................................................................36

Figure 12. Aux Audio Playback When Nothing Plugged In (or System is not Docked) ..................................38

Figure 13. Aux Audio Playback When System Headphones are Plugged In .................................................38

Figure 14. Aux Audio Playback when the System is Docked and Headphones are Plugged In ....................39

Figure 15. HD Audio Bus Timing ....................................................................................................................45

Figure 16. Functional Block Diagram .............................................................................................................47

Figure 17. Widget Diagram ............................................................................................................................48

Figure 18. Port Configurations .......................................................................................................................49

Figure 19. 40QFN Pin Assignment ..............................................................................................................266

Figure 20. 40QFN Package Diagram ...........................................................................................................269

IDT CONFIDENTIAL

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©2009 INTEGRATED DEVICE TECHNOLOGY, INC.

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