CS4299

3

4.10 Stereo Analog Mixer Input Gain Registers (Index 10h - 18h) ................................. 24

4.11 Input Mux Select Register (Index 1Ah) ................................................................... 25

4.12 Record Gain Register (Index 1Ch) ......................................................................... 25

4.13 General Purpose Register (Index 20h) ................................................................... 26

4.14 3D Control Register (Index 22h) ............................................................................. 26

4.15 Powerdown Control/Status Register (Index 26h) ................................................... 27

4.16 Extended Audio ID Register (Index 28h) ................................................................ 28

4.17 PCM Front DAC Rate Register (Index 2Ch)

........................................................ 28

4.18 PCM L/R ADC Rate Register (Index 32h) .............................................................. 28

4.19 AC Mode Control Register (Index 5Eh) .................................................................. 29

4.20 Misc. Crystal Control Register (Index 60h) ............................................................. 29

4.21 S/PDIF Control Register (Index 68h) ..................................................................... 30

4.22 Vendor ID1 Register (Index 7Ch) ........................................................................... 31

4.23 Vendor ID2 Register (Index 7Eh) ........................................................................... 31

5. POWER MANAGEMENT ................................................................................................. 32

5.1 AC ’97 Reset Modes ................................................................................................ 32

5.1.1 Cold AC ‘97 Reset ....................................................................................... 32

5.1.2 Warm AC ’97 Reset ..................................................................................... 32

5.1.3 Register AC ’97 Reset ................................................................................. 32

5.2 Powerdown Controls ................................................................................................ 33

6. ANALOG HARDWARE DESCRIPTION ......................................................................... 35

6.1 Analog Inputs ........................................................................................................... 35

6.1.4 Line-Level Inputs ........................................................................................ 35

6.1.5 CD Input ..................................................................................................... 35

6.1.6 Microphone Inputs ...................................................................................... 36

6.1.7 PC Beep Input ............................................................................................ 36

6.1.8 Phone Input ................................................................................................ 37

6.2 Analog Outputs ........................................................................................................ 37

6.2.9 Stereo Outputs ........................................................................................... 37

6.2.10 Mono Output ............................................................................................. 37

6.3 Miscellaneous Analog Signals ................................................................................. 38

6.4 Power Supplies ........................................................................................................ 38

6.5 Reference Design .................................................................................................... 38

7. SONY/PHILIPS DIGITAL INTERFACE (S/PDIF) ............................................................ 39

8. GROUNDING AND LAYOUT .......................................................................................... 39

9. PIN DESCRIPTIONS

41

10. PARAMETER AND TERM DEFINITIONS .................................................................... 46

11. REFERENCE DESIGN ................................................................................................. 48

12. REFERENCES .............................................................................................................. 49

13. PACKAGE DIMENSIONS ............................................................................................. 50

LIST OF FIGURES

Figure 1. Power Up Timing .......................................................................................................8

Figure 2. Codec Ready from Startup or Fault Condition ........................................................... 8

Figure 3. Clocks ........................................................................................................................ 8

Figure 4. Data Setup and Hold.................................................................................................. 9

Figure 5. PR4 Powerdown and Warm Reset ............................................................................ 9

Figure 6. Test Mode .................................................................................................................. 9

Figure 7. AC-link Connections ................................................................................................ 10

Figure 8. Mixer Diagram.......................................................................................................... 12

Figure 9. AC-link Input and Output Framing ........................................................................... 13

Figure 10. Line Input (Replicate for Video and Aux) ............................................................... 35