Cirrus Logic CS4297A - Manual (Page 3)

CS4297A
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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
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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
DS318PP6 3
CS4297A