CS44800
LIST OF FIGURES
Figure 1. Performance Characteristics Evaluation Active Filter Circuit......................................... 10
Figure 2. XTI Timings.................................................................................................................... 11
Figure 3. SYS_CLK Timings ......................................................................................................... 12
Figure 4. PWMOUTxx Timings ..................................................................................................... 12
Figure 5. PS_SYNC Timings......................................................................................................... 12
Figure 6. Serial Audio Interface Timing......................................................................................... 13
Figure 7. Serial Audio Interface Timing - TDM Mode.................................................................... 13
Figure 8. Control Port Timing - I²C Format.................................................................................... 14
Figure 9. Control Port Timing - SPI Format................................................................................... 15
Figure 10. CS44800 Pinout Diagram ............................................................................................ 16
Figure 11. Typical Full-Bridge Connection Diagram ..................................................................... 21
Figure 12. Typical Half-Bridge Connection Diagram..................................................................... 22
Figure 13. CS44800 Data Flow Diagram (Single Channel Shown) .............................................. 24
Figure 14. Fundamental Mode Crystal Configuration ................................................................... 25
Figure 15. 3rd Overtone Crystal Configuration ............................................................................. 26
Figure 16. CS44800 Internal Clock Generation ............................................................................ 26
Figure 17. I²S Serial Audio Formats.............................................................................................. 28
Figure 18. Left-Justified Serial Audio Formats.............................................................................. 28
Figure 19. Right-Justified Serial Audio Formats............................................................................ 29
Figure 20. One Line Mode #1 Serial Audio Format....................................................................... 29
Figure 21. One Line Mode #2 Serial Audio Format....................................................................... 30
Figure 22. TDM Mode Serial Audio Format .................................................................................. 30
Figure 23. De-Emphasis Curve..................................................................................................... 31
Figure 24. Control Port Timing in SPI Mode ................................................................................. 36
Figure 25. Control Port Timing, I²C Slave Mode Write.................................................................. 37
Figure 26. Control Port Timing, I²C Slave Mode Read.................................................................. 37
Figure 27. Recommended CS44800 Power Supply Decoupling Layout....................................... 39
Figure 28. Recommended CS44800 Crystal Circuit Layout ......................................................... 40
Figure 29. Recommended PSR Circuit Layout ............................................................................. 41
Figure 30. PSR Calibration Sequence .......................................................................................... 44
Figure 31. PWM Output Delay ...................................................................................................... 71
Figure 32. 64-Pin LQFP Package Drawing................................................................................... 78
6
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