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92HD73C

SIX CHANNEL HD AUDIO CODEC

Integrated Device Technology 

92HD73C

SIX CHANNEL HD AUDIO CODEC, PREMIUM WLP 3/4 COMPLIANT

PC AUDIO

LIST OF FIGURES

Figure 1. 92HD73D Block Diagram ................................................................................................................12

Figure 2. System Diagram ............................................................................................................................12

Figure 3. Multi-channel capture ......................................................................................................................20

Figure 4. Multi-channel timing diagram ..........................................................................................................20

Figure 5. EAPD ..............................................................................................................................................23

Figure 6: Mono Digital Microphone (data is ported to both left and right channels ........................................25

Figure 7: Stereo Digital Microphone Configuration ........................................................................................26

Figure 8: Quad Digital Microphone Configuration ..........................................................................................27

Figure 9: External Volume Control Circuit ......................................................................................................31

Figure 10. Port Configuration .........................................................................................................................39

Figure 11. Functional Block Diagram .............................................................................................................40

Figure 12. Widget Diagram ............................................................................................................................41

Figure 13. Pin Assignment ...........................................................................................................................253

Figure 14. 48-pin QFP Package Drawing ....................................................................................................257

Figure 15. Solder Reflow Profile ..................................................................................................................258

LIST OF TABLES

Table 1. Port Functionality .............................................................................................................................13

Table 2. Analog I/O Port Behavior .................................................................................................................14

Table 4. SPDIF OUT 0 (Pin 48) Behavior ......................................................................................................15

Table 5. SPDIF OUT 1 (Pin 40) Behavior ......................................................................................................15

Table 6. Input Multiplexers .............................................................................................................................17

Table 7. Function state vs. AFG power state .................................................................................................17

Table 10. EAPD Behavior ..............................................................................................................................22

Table 11. Valid Digital Mic Configurations .....................................................................................................24

Table 12. DMIC_CLK and DMIC_0,1 Operation During Power States ..........................................................24

Table 13. GPIO Pin mapping .........................................................................................................................29

Table 14. Electrical Specification: Maximum Ratings ...................................................................................32

Table 15. Recommended Operating Conditions ............................................................................................32

Table 16. 92HD73D 5V, 4.75V, and 3.3V Analog Performance Characteristics ............................................33

Table 17. High Definition Audio Widget .........................................................................................................42

Table 18. Pin Configuration Default Settings .................................................................................................43

Table 19. Command Format for Verb with 4-bit Identifier ..............................................................................45

Table 20. Command Format for Verb with 12-bit Identifier ............................................................................45

Table 21. Solicited Response Format ............................................................................................................45

Table 22. Unsolicited Response Format ........................................................................................................45

Table 23. Digital Pins ...................................................................................................................................254

Table 24. Analog Pins ..................................................................................................................................254

Table 25. Power Pins ...................................................................................................................................255

Table 26. Standard Reflow Profile ...............................................................................................................258

Table 27. Pb-Free Process Reflow ..............................................................................................................259

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SIX CHANNEL HD AUDIO CODEC, PREMIUM WLP 3/4 COMPLIANT

92HD73C

V 1.3 08/11

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