IDTSTAC9750XXTAEC1XR IDT, Integrated Device Technology Inc, IDTSTAC9750XXTAEC1XR Datasheet - Page 2

• Manufacturer Part Number: IDTSTAC9750XXTAEC1XR
• Description: IC CODEC AC'97 2CH VALUE 48-LQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Audio Codec '97r

Specifications of IDTSTAC9750XXTAEC1XR

• Resolution (bits): 18 b, 20 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• S/n Ratio, Adcs / Dacs (db) Typ: 85 / 89
• Voltage - Supply, Analog: 3.14 V ~ 3.47 V; 4.75 V ~ 5.25 V
• Voltage - Supply, Digital: 3.14 V ~ 3.47 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: STAC9750XXTAEC1XR

TABLE OF CONTENTS
IDT™
VALUE-LINE TWO-CHANNEL AC’97 CODECS
STAC9750/9751
VALUE-LINE TWO-CHANNEL AC’97 CODECS
1. PRODUCT BRIEF ...................................................................................................................... 5
2. CHARACTERISTICS/SPECIFICATIONS .................................................................................. 8
3. TYPICAL CONNECTION DIAGRAM ....................................................................................... 19
4. AC-LINK ................................................................................................................................... 20
5. DIGITAL INTERFACE .............................................................................................................. 21
6. STAC9750/9751 MIXER .......................................................................................................... 31
7. LOW POWER MODES ............................................................................................................56
8. MULTIPLE CODEC SUPPORT ...............................................................................................58
9. TESTABILITY .......................................................................................................................... 60
10. PIN DESCRIPTION ................................................................................................................ 61
11. ORDERING INFORMATION .................................................................................................. 65
12. PACKAGE DRAWINGS ......................................................................................................... 66
13. SOLDER REFLOW PROFILE ...............................................................................................67
14. APPENDIX A: SPLIT INDEPENDENT POWER SUPPLY OPERATION .............................. 69
15. APPENDIX B: PROGRAMMING REGISTERS .....................................................................71
16. REVISION HISTORY ............................................................................................................. 72
1.1. Features ............................................................................................................................................ 5
1.2. Description ........................................................................................................................................ 5
1.3. STAC9750/9751 Block Diagram ........................................................................................................ 6
1.4. Key Specifications ............................................................................................................................. 7
1.5. Related Materials .............................................................................................................................. 7
1.6. Additional Support ............................................................................................................................. 7
2.1. Electrical Specifications ..................................................................................................................... 8
2.2. AC Timing Characteristics ............................................................................................................... 15
4.1. Clocking ........................................................................................................................................... 20
4.2. Reset ............................................................................................................................................... 20
5.1. AC-Link Digital Serial Interface Protocol ......................................................................................... 21
5.2. AC-Link Low Power Mode ............................................................................................................... 29
5.3. Waking up the AC-Link .................................................................................................................... 30
6.1. Analog Mixer Input .......................................................................................................................... 33
6.2. Analog Mixer Output ........................................................................................................................ 33
6.3. SPDIF Digital Mux ........................................................................................................................... 33
6.4. PC Beep Implementation ................................................................................................................ 33
6.5. Programming Registers ................................................................................................................... 34
8.1. Primary/Secondary CODEC Selection ............................................................................................ 58
8.2. Secondary CODEC Register Access Definitions ............................................................................. 59
10.1. Digital I/O ....................................................................................................................................... 62
10.2. Analog I/O ..................................................................................................................................... 63
10.3. Filter/References/GPIO ................................................................................................................. 64
10.4. Power and Ground Signals ........................................................................................................... 64
12.1. 48-Pin LQFP .................................................................................................................................. 66
13.1. Standard Reflow Profile Data ........................................................................................................ 67
13.2. Pb Free Process - Package Classification Reflow Temperatures ................................................. 68
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STAC9750/9751
PC AUDIO
V 5.8 103106