CS4205_05 Datasheet, PDF (4/81 Pages) Cirrus Logic – CrystalClear® Audio Codec ’97 for Portable Computing

CS4205
10.1.3 New Warm Reset .............................................................................................. 59
10.1.4 Register Reset .................................................................................................. 59
10.2 Powerdown Controls ...................................................................................................... 60
11. CLOCKING ........................................................................................................................... 62
11.1 PLL Operation (External Clock) ..................................................................................... 62
11.2 24.576 MHz Crystal Operation ....................................................................................... 62
11.3 Secondary Codec Operation .......................................................................................... 62
12. ANALOG HARDWARE DESCRIPTION ............................................................................... 64
12.1 Analog Inputs ................................................................................................................. 64
12.1.1 Line Inputs ......................................................................................................... 64
12.1.2 CD Input ............................................................................................................ 64
12.1.3 Microphone Inputs ............................................................................................. 65
12.1.4 PC Beep Input ................................................................................................... 65
12.1.5 Phone Input ....................................................................................................... 65
12.2 Analog Outputs .............................................................................................................. 65
12.2.1 Stereo Output .................................................................................................... 66
12.2.2 Mono Output ..................................................................................................... 66
12.3 Miscellaneous Analog Signals ....................................................................................... 66
12.4 Power Supplies .............................................................................................................. 66
12.5 Reference Design .......................................................................................................... 67
13. GROUNDING AND LAYOUT .............................................................................................. 68
14. PIN DESCRIPTIONS ....................................................................................................... 70
15. PARAMETER AND TERM DEFINITIONS ............................................................................ 77
16. REFERENCE DESIGN ..................................................................................................... 79
17. REFERENCES ...................................................................................................................... 80
18. PACKAGE DIMENSIONS ..................................................................................................... 81
LIST OF FIGURES
Figure 1. Power Up Timing............................................................................................................ 10
Figure 2. Codec Ready from Start-up or Fault Condition .............................................................. 10
Figure 3. Clocks ............................................................................................................................ 10
Figure 4. Data Setup and Hold...................................................................................................... 11
Figure 5. PR4 Powerdown and Warm Reset ................................................................................ 11
Figure 6. Test Mode ...................................................................................................................... 11
Figure 7. AC-link Connections....................................................................................................... 12
Figure 8. CS4205 Mixer Diagram.................................................................................................. 14
Figure 9. Digital Signal Path Overview.......................................................................................... 15
Figure 10. Analog Centric Mode.................................................................................................... 17
Figure 11. Digital Centric Mode..................................................................................................... 17
Figure 12. Host Processing Mode ................................................................................................. 17
Figure 13. Multi-Channel Mode ..................................................................................................... 17
Figure 14. AC-link Input and Output Framing................................................................................ 18
Figure 15. Serial Data Port: Six Channel Circuit ........................................................................... 54
Figure 16. Digital Docking Connection Diagram ........................................................................... 55
Figure 17. Serial Data Format 0 (I2S) ........................................................................................... 56
Figure 18. Serial Data Format 1 (Left Justified) ............................................................................ 56
Figure 19. Serial Data Format 2 (Right Justified, 20-bit data) ....................................................... 56
Figure 20. Serial Data Format 3 (Right Justified, 16-bit data) ....................................................... 56
Figure 21. ZV Port Format (I2S, 16-bit data)................................................................................. 57
Figure 22. S/PDIF Output.............................................................................................................. 58
Figure 23. PLL External Loop Filter............................................................................................... 62
Figure 24. External Crystal............................................................................................................ 63
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DS489PP4