92hdw74c2 Integrated Device Technology, 92hdw74c2 Datasheet - Page 10

• Manufacturer Part Number: 92hdw74c2
• Description: Six Channel Hd Audio Codec
• Manufacturer: Integrated Device Technology

SIX CHANNEL HD AUDIO CODEC
LIST OF FIGURES
LIST OF TABLES
92HDW74C2
SIX CHANNEL HD AUDIO CODEC
Figure 1. 92HDW74C2 Block Diagram ..........................................................................................................12
Figure 2. System Diagram ............................................................................................................................12
Figure 3. Multi-channel capture ......................................................................................................................19
Figure 4. Multi-channel timing diagram ..........................................................................................................19
Figure 5. EAPD ..............................................................................................................................................22
Figure 6: Mono Digital Microphone (data is ported to both left and right channels ........................................24
Figure 7: Stereo Digital Microphone Configuration ........................................................................................25
Figure 8: Quad Digital Microphone Configuration ..........................................................................................26
Figure 9: External Volume Control Circuit ......................................................................................................30
Figure 10. Port Configuration .........................................................................................................................38
Figure 11. Functional Block Diagram .............................................................................................................39
Figure 12. Widget Diagram ............................................................................................................................40
Figure 13. Pin Assignment ...........................................................................................................................233
Figure 14. 48-pin QFP Package Drawing ....................................................................................................237
Figure 15. Solder Reflow Profile ..................................................................................................................238
Table 1. Port Functionality .............................................................................................................................13
Table 2. Analog I/O Port Behavior .................................................................................................................14
Table 4. SPDIF OUT 0 (Pin 48) Behavior ......................................................................................................15
Table 5. Input Multiplexers .............................................................................................................................16
Table 6. Function state vs. AFG power state .................................................................................................16
Table 9. EAPD Behavior ................................................................................................................................21
Table 10. Valid Digital Mic Configurations .....................................................................................................23
Table 11. DMIC_CLK and DMIC_0,1 Operation During Power States ..........................................................23
Table 12. GPIO Pin mapping .........................................................................................................................28
Table 13. Electrical Specification: Maximum Ratings ...................................................................................31
Table 14. Recommended Operating Conditions ............................................................................................31
Table 15. 92HDW74C2 5V, 4.75V, and 3.3V Analog Performance Characteristics ......................................32
Table 16. High Definition Audio Widget .........................................................................................................41
Table 17. Command Format for Verb with 4-bit Identifier ..............................................................................43
Table 18. Command Format for Verb with 12-bit Identifier ............................................................................43
Table 19. Solicited Response Format ............................................................................................................43
Table 20. Unsolicited Response Format ........................................................................................................43
Table 21. Digital Pins ...................................................................................................................................234
Table 22. Analog Pins ..................................................................................................................................234
Table 23. Power Pins ...................................................................................................................................235
Table 24. Standard Reflow Profile ...............................................................................................................238
Table 25. Pb-Free Process Reflow ..............................................................................................................239
10
92HDW74C2
PC AUDIO
V 1.0 03/08