![](http://datasheet.mmic.net.cn/390000/STAC9227_datasheet_16835295/STAC9227_2.png)
STAC9227/9228/9229/9230
8-CHANNEL HIGH DEFINITION AUDIO CODEC
PC AUDIO
IDT
8-CHANNEL HIGH DEFINITION AUDIO CODEC
2
STAC9227/9228/9229/9230V 1.0 MARCH 2007
IDT CONFIDENTIAL
TABLE OF CONTENTS
1. DESCRIPTION .........................................................................................................................15
2. CHARACTERISTICS ...............................................................................................................16
2.1. Audio Fidelity ...................................................................................................................16
2.2. Electrical Specifications ..................................................................................................16
2.3. STAC9227/9228/9229/9230 5V, 4.5V, 4.0V, and 3.3V Analog Performance Char.............18
3. DETAILED DESCRIPTION ......................................................................................................23
3.1. Universal JacksTM ..........................................................................................................23
3.2. Impedance Sense ...........................................................................................................24
3.3. SPDIF Input .....................................................................................................................24
3.4. SPDIF Output ..................................................................................................................24
3.5. ADAT
Output .................................................................................................................25
3.6. Digital Microphone Support .............................................................................................25
3.7. Analog PC-Beep .............................................................................................................29
3.8. Headphone Drivers (Restrictions) ...................................................................................29
3.9. Device IDs .......................................................................................................................29
4. FUNCTIONAL BLOCK DIAGRAMS ........................................................................................30
4.1. Without ADAT .................................................................................................................30
4.2. Without ADAT or Digital Microphone ..............................................................................31
5. WIDGET DIAGRAM .................................................................................................................33
5.1. Pin Configuration Default Register Settings ....................................................................35
6. WIDGET INFORMATION FOR THE STAC9227/9228/9229/9230 .........................................36
6.1. Root Node (NID = 0x00) .................................................................................................38
6.2. AFG Node (NID = 0x01) ..................................................................................................40
6.3. DAC0 Node (NID = 0x02) ...............................................................................................64
6.4. DAC1 Node (NID = 0x03) ...............................................................................................69
6.5. DAC2 Node (NID = 0x04) ...............................................................................................74
6.6. DAC3 Node (NID = 0x05) ...............................................................................................79
6.7. DAC4 Node (NID = 0x06) ...............................................................................................84
6.8. ADC0 Node (NID = 0x07) ...............................................................................................90
6.9. ADC1 Node (NID = 0x08) ...............................................................................................95
6.10. ADC2 Node (NID = 0x09) ...........................................................................................100
6.11. SPDIFOut Node (NID = 0x1E) ....................................................................................105
6.12. SPDIFIn Node (NID = 0x20) .......................................................................................111
6.13. PortA Node (NID = 0x0A) ............................................................................................121
6.14. PortB Node (NID = 0x0B) ............................................................................................127
6.15. PortC Node (NID = 0x0C) ...........................................................................................133
6.16. PortD Node (NID = 0x0D) ...........................................................................................138
6.17. PortE Node (NID = 0x0E) ............................................................................................145
6.18. PortF Node (NID = 0x0F) ............................................................................................151
6.19. PortG Node (NID = 0x10) ............................................................................................157
6.20. PortH Node (NID = 0x11) ............................................................................................163
6.21. DMic0 Node (NID = 0x13) ...........................................................................................169
6.22. DMic1 Node (NID = 0x14) ...........................................................................................172
6.23. DigOut0 Node (NID = 0x21) ........................................................................................176
6.24. DigIn Node (NID = 0x22) .............................................................................................183
6.25. InPort0Mux Node (NID = 0x15) ...................................................................................189
6.26. InPort1Mux Node (NID = 0x16) ...................................................................................194
6.27. InPort2Mux Node (NID = 0x17) ...................................................................................200