IDTSTAC9751XXTAEC1XR IDT, Integrated Device Technology Inc, IDTSTAC9751XXTAEC1XR Datasheet - Page 3

• Manufacturer Part Number: IDTSTAC9751XXTAEC1XR
• Description: IC CODEC AC'97 2CH VALUE 48-LQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Audio Codec '97r

Specifications of IDTSTAC9751XXTAEC1XR

• 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: STAC9751XXTAEC1XR

LIST OF FIGURES
IDT™
VALUE-LINE TWO-CHANNEL AC’97 CODECS
STAC9750/9751
VALUE-LINE TWO-CHANNEL AC’97 CODECS
Figure 1. STAC9750/9751 Block Diagram ...................................................................................................... 6
Figure 2. Cold Reset Timing ......................................................................................................................... 15
Figure 3. Warm Reset Timing ....................................................................................................................... 15
Figure 4. Clocks Timing ................................................................................................................................ 16
Figure 5. Data Setup and Hold Timing ......................................................................................................... 17
Figure 6. Signal Rise and Fall Times Timing ................................................................................................ 17
Figure 7. AC-Link Low Power Mode Timing ................................................................................................. 18
Figure 8. ATE Test Mode Timing .................................................................................................................. 18
Figure 9. STAC9751 Typical Connection Diagram ....................................................................................... 19
Figure 10. AC-Link to its Companion Controller ........................................................................................... 20
Figure 11. AC'97 Standard Bi-directional Audio Frame ................................................................................ 22
Figure 12. AC-Link Audio Output Frame ...................................................................................................... 22
Figure 13. Start of an Audio Output Frame ................................................................................................... 23
Figure 14. STAC9750/9751 Audio Input Frame ........................................................................................... 26
Figure 15. Start of an Audio Input Frame ..................................................................................................... 26
Figure 16. STAC9750/9751 Powerdown Timing
Figure 17. STAC9750 2-Channel Mixer Functional Diagram
Figure 18. STAC9751 2-Channel Mixer Functional Diagram ....................................................................... 32
Figure 19. Example of STAC9750/9751 Powerdown/Powerup Flow ........................................................... 56
Figure 20. STAC9750/9751 Powerdown/Powerup Flow With Analog Still Active ........................................ 57
Figure 21. STAC9750/9751 Pin Description Drawing ................................................................................... 61
Figure 22. Package Drawing - 48-pin LQFP .................................................................................................. 66
Figure 23. Reflow Profile .............................................................................................................................. 67
Figure 24. STAC9750/9751 Split Independent Power Supply Operation Typical Connection Diagram ....... 70
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STAC9750/9751
PC AUDIO
V 5.8 103106