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CS42448 Datasheet, PDF (4/70 Pages) Cirrus Logic – 108 dB, 192 kHz 6-in, 8-out CODEC
LIST OF FIGURES
Figure 1. Typical Connection Diagram ............................................................................................ 9
Figure 2. Output Test Load ........................................................................................................... 17
Figure 3. Maximum Loading.......................................................................................................... 17
Figure 4. Serial Audio Interface Slave Mode Timing ..................................................................... 19
Figure 5. TDM Serial Audio Interface Timing ................................................................................ 19
Figure 6. Serial Audio Interface Master Mode Timing ................................................................... 20
Figure 7. Serial Audio Interface Slave Mode Timing ..................................................................... 21
Figure 8. Control Port Timing - I²C Format.................................................................................... 22
Figure 9. Control Port Timing - SPI Format................................................................................... 23
Figure 10. Full-Scale Input ............................................................................................................ 26
Figure 11. ADC3 Input Topology................................................................................................... 26
Figure 12. Audio Output Initialization Flow Chart .......................................................................... 28
Figure 13. Full-Scale Output ......................................................................................................... 30
Figure 14. De-Emphasis Curve ..................................................................................................... 30
Figure 15. I²S Format .................................................................................................................... 33
Figure 16. Left Justified Format..................................................................................................... 33
Figure 17. Right Justified Format .................................................................................................. 33
Figure 18. One Line Mode #1 Format ........................................................................................... 33
Figure 19. One Line Mode #2 Format ........................................................................................... 34
Figure 20. TDM Format ................................................................................................................. 34
Figure 21. AUX I²S Format............................................................................................................ 36
Figure 22. AUX Left Justified Format ............................................................................................ 36
Figure 23. Control Port Timing in SPI Mode.................................................................................. 37
Figure 24. Control Port Timing, I²C Write ...................................................................................... 38
Figure 25. Control Port Timing, I²C Read...................................................................................... 38
Figure 26. Single to Differential Active Input Filter ........................................................................ 55
Figure 27. Single-Ended Active Input Filter................................................................................... 55
Figure 28. Passive Input Filter....................................................................................................... 56
Figure 29. Passive Input Filter w/Attenuation................................................................................ 57
Figure 30. Active Analog Output Filter .......................................................................................... 58
Figure 31. Passive Analog Output Filter........................................................................................ 58
Figure 32. SSM Stopband Rejection ............................................................................................. 59
Figure 33. SSM Transition Band ................................................................................................... 59
Figure 34. SSM Transition Band (Detail)....................................................................................... 59
Figure 35. SSM Passband Ripple ................................................................................................. 59
Figure 36. DSM Stopband Rejection............................................................................................. 59
Figure 37. DSM Transition Band ................................................................................................... 59
Figure 38. DSM Transition Band (Detail) ...................................................................................... 60
Figure 39. DSM Passband Ripple ................................................................................................. 60
Figure 40. QSM Stopband Rejection............................................................................................. 60
Figure 41. QSM Transition Band................................................................................................... 60
Figure 42. QSM Transition Band (Detail) ...................................................................................... 60
Figure 43. QSM Passband Ripple................................................................................................. 60
Figure 44. SSM Stopband Rejection ............................................................................................. 61
Figure 45. SSM Transition Band ................................................................................................... 61
Figure 46. SSM Transition Band (detail) ....................................................................................... 61
Figure 47. SSM Passband Ripple ................................................................................................. 61
Figure 48. DSM Stopband Rejection............................................................................................. 61
Figure 49. DSM Transition Band ................................................................................................... 61
Figure 50. DSM Transition Band (detail) ....................................................................................... 62
Figure 51. DSM Passband Ripple ................................................................................................. 62
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DS648PP2