STAC9250 Datasheet, PDF(2/137 Page) Integrated Device Technology – TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES

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STAC9250 Datasheet, PDF (2/137 Pages) Integrated Device Technology – TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES

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STAC9250/9251

TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES

PC AUDIO

Table of Contents

1. DESCRIPTION ........................................................................................................................... 9

1.1. Overview ........................................................................................................................................... 9

1.2. Features ............................................................................................................................................ 9

1.3. Description ...................................................................................................................................... 10

2. CHARACTERISTICS ............................................................................................................... 11

2.1. Audio Fidelity .................................................................................................................................. 11

2.2. Electrical Specifications ................................................................................................................... 11

2.3. STAC9250/9251 5V Analog Performance Characteristics .............................................................. 13

2.4. STAC9250/9251 4V Analog Performance Characteristics .............................................................. 14

2.5. STAC9250/9251 3.3V Analog Performance Characteristics ........................................................... 14

2.6. Power Consumption ........................................................................................................................ 15

3. DETAILED DESCRIPTION ......................................................................................................16

3.1. SPDIF Input ..................................................................................................................................... 16

3.2. SPDIF Output .................................................................................................................................. 16

3.3. Digital Microphone Support (STAC9251 only) ................................................................................. 16

3.4. SiLabs System Side Modem ........................................................................................................... 16

3.5. Mono Out ......................................................................................................................................... 16

3.6. Headphone Drivers (Restrictions) ................................................................................................... 17

3.7. Universal Jacksâ¢ ............................................................................................................................ 17

4. FUNCTIONAL BLOCK DIAGRAMS ........................................................................................ 18

4.1. STAC9250 ....................................................................................................................................... 18

4.2. STAC9251 ....................................................................................................................................... 19

5. WIDGET INFORMATION ......................................................................................................... 20

5.1. Widget Diagram - STAC9250 .......................................................................................................... 20

5.2. Widget Diagram - STAC9251 .......................................................................................................... 21

5.3. Widget List - STAC9250/9251 ........................................................................................................ 22

5.4. Root Node (NID = 0x00) .................................................................................................................. 23

5.5. AFG Node (NID = 0x01) .................................................................................................................. 24

5.6. DAC0Cnvtr Node (NID = 0x02) ....................................................................................................... 39

5.7. ADC0Cnvtr Node (NID = 0x03) ....................................................................................................... 43

5.8. SPDIFinCnvtr Node (NID = 0x04) ................................................................................................... 48

5.9. SPDIFoutCnvtr Node (NID = 0x05) ................................................................................................. 54

5.10. DAC0Mux Node (NID = 0x06) ....................................................................................................... 59

5.11. DigInPin Node (NID = 0x07) .......................................................................................................... 62

5.12. DigOutPin Node (NID = 0x08) ....................................................................................................... 68

5.13. ADC0VolMux Node (NID = 0x09) .................................................................................................. 73

5.14. MasterVol Node (NID = 0x0E) ....................................................................................................... 77

5.15. InPortMux Node (NID = 0x0F) ....................................................................................................... 80

5.16. PortAPin Node (NID = 0x0A) ......................................................................................................... 84

5.17. PortDPin Node (NID = 0x0D) ........................................................................................................ 89

5.18. PortCPin Node (NID = 0x0C) ........................................................................................................ 95

5.19. PortBPin Node (NID = 0x0B) ....................................................................................................... 101

5.20. MonoOutPin Node (NID = 0x10) ................................................................................................. 107

5.21. CDPin Node (NID = 0x11) ........................................................................................................... 112

5.22. MonoOutMix Node (NID = 0x12) ................................................................................................. 115

5.23. PCBeep Node (NID = 0x13) ........................................................................................................ 117

5.24. ADC0InMux Node (NID = 0x14) .................................................................................................. 120

5.25. DigMicPin Node (NID = 0x15) (STAC9251 only) ......................................................................... 125

6. ORDERING INFORMATION .................................................................................................. 129

6.1. STAC9250/9251 Family Options and Part Order Numbers ........................................................... 129

6.2. STAC9250/9251 Pin Diagram ....................................................................................................... 130

6.3. Pin Table for STAC9250/9251 ...................................................................................................... 131

7. PACKAGE DRAWINGS ......................................................................................................... 133

IDTâ¢

TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES

STAC9250/9251

V 1.1 102706

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