92HD91 Datasheet, PDF (10/298 Pages) Integrated Device Technology – SINGLE CHIP PC AUDIO SYSTEM

92HD91
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
LIST OF FIGURES
Figure 1. Multi-channel capture ......................................................................................................................22
Figure 2. Multi-channel timing diagram ..........................................................................................................22
Figure 3. HP EAPD Example to be replaced by single pin for internal amp ..................................................26
Figure 4. EAPD implementation .....................................................................................................................27
Figure 5. Single Digital Microphone (data is ported to both left and right channels .......................................29
Figure 6. Stereo Digital Microphone Configuration ........................................................................................30
Figure 7. Quad Digital Microphone Configuration ..........................................................................................31
Figure 8. Analog PC Beep Active ..................................................................................................................32
Figure 9. Analog PC Beep Flow chart ............................................................................................................33
Figure 10. Combo Jack ..................................................................................................................................35
Figure 11. Switching between Normal and Aux Audio Modes .......................................................................39
Figure 12. Aux Audio Playback When Nothing Plugged In (or System is not Docked) ..................................41
Figure 13. Aux Audio Playback When System Headphones are Plugged In .................................................42
Figure 14. Aux Audio Playback when the System is Docked and Headphones are Plugged In ....................42
Figure 15. Aux Audio Record when Nothing is Plugged In (or The System is not Docked) ...........................42
Figure 16. Aux Audio Record when the System is Docked with the System Microphone Plugged In ...........43
Figure 17. Aux Audio Record when the System is Docked with the Dock Microphone Plugged In ...............43
Figure 18. HD Audio Bus Timing ....................................................................................................................50
Figure 19. Functional Block Diagram .............................................................................................................52
Figure 20. Widget Diagram ............................................................................................................................53
Figure 21. Port Configurations .......................................................................................................................54
Figure 22. 48QFN Pin Assignment ..............................................................................................................291
Figure 23. 48QFN Package Diagram ...........................................................................................................294
IDT™ CONFIDENTIAL
10
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
V 1.2 1/12
92HD91