CS4297A
CS4297A
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
DS318PP6
3
3
CIRRUS [ CIRRUS LOGIC ]
