STAC9766 datasheet(4/97 Pages) IDT

4 / 97 page

STAC9766/9767

TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING

PC AUDIO

IDT™

STAC9766/9767

V 7.4 12/06

TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING

List of Figures

Figure 1. Block Diagram .................................................................................................................................. 8

Figure 2. Cold Reset Timing ......................................................................................................................... 13

Figure 3. Warm Reset Timing ........................................................................................................................13

Figure 4. Clocks Timing ................................................................................................................................ 14

Figure 5. Data Setup and Hold Timing ......................................................................................................... 15

Figure 6. Signal Rise and Fall Times Timing ................................................................................................ 15

Figure 7. AC-Link Low Power Mode Timing .................................................................................................. 16

Figure 8. ATE Test Mode Timing ..................................................................................................................16

Figure 9. Typical Connection Diagram .......................................................................................................... 17

Figure 10. Split Independent Power Supply Operation ................................................................................. 19

Figure 11. AC-Link to its Companion Controller ........................................................................................... 20

Figure 12. CODEC Clock Source Detection ................................................................................................. 21

Figure 13. STAC9766/9767 Powerdown Timing .......................................................................................... 24

Figure 14. Bi-directional AC-link Frame with Slot Assignments ....................................................................27

Figure 15. AC-Link Audio Output Frame ...................................................................................................... 31

Figure 16. Start of an Audio Output Frame ................................................................................................... 31

Figure 17. STAC9766/9767 Audio Input Frame ........................................................................................... 34

Figure 18. Start of an Audio Input Frame ..................................................................................................... 35

Figure 19. Bi-directional AC-link Frame with Slot assignments ....................................................................39

Figure 20. STAC9766 2-Channel Mixer Functional Diagram .......................................................................42

Figure 21. STAC9767 2-Channel Mixer Functional Diagram .......................................................................42

Figure 22. Example of STAC9766/9767 Powerdown/Powerup Flow ...........................................................81

Figure 23. Powerdown/Powerup Flow With Analog Still Alive .......................................................................82

Figure 24. Pin Description Drawing ............................................................................................................... 87

Figure 25. 48-Pin LQFP Package Outline and Package Dimensions ...........................................................91

Figure 26. Solder Reflow Profile ................................................................................................................... 92

STAC9766 Datasheet(PDF) 4 Page - Integrated Device Technology

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