4

DS641F4

CS8421

LIST OF FIGURES

Figure 1. Non-TDM Slave Mode Timing..................................................................................................... 14

Figure 2. TDM Slave Mode Timing ............................................................................................................ 14

Figure 3. Non-TDM Master Mode Timing................................................................................................... 14

Figure 4. TDM Master Mode Timing .......................................................................................................... 14

Figure 5. Typical Connection Diagram, No External Master Clock ............................................................ 15

Figure 6. Typical Connection Diagram, Master and Slave Modes ............................................................. 16

Figure 7. Serial Audio Interface Format - I²S ............................................................................................. 18

Figure 8. Serial Audio Interface Format - Left-Justified.............................................................................. 18

Figure 9. Serial Audio Interface Format - Right-Justified ........................................................................... 18

Figure 10. Typical Connection Diagram for Crystal Circuit ........................................................................ 22

Figure 11. TDM Slave Mode Timing Diagram............................................................................................ 22

Figure 12. TDM Master Mode Timing Diagram.......................................................................................... 23

Figure 13. TDM Mode Configuration (All CS8421 Outputs are Slave)....................................................... 23

Figure 14. TDM Mode Configuration (First CS8421 Output is Master, All Others are Slave) .................... 23

Figure 15. Wideband FFT Plot (16k Points) 0 dBFS 1 kHz Tone, 48 kHz:48 kHz ..................................... 25

Figure 16. Wideband FFT Plot (16k Points) 0 dBFS 1 kHz Tone, 44.1 kHz:192 kHz ................................ 25

Figure 17. Wideband FFT Plot (16k Points) 0 dBFS 1 kHz Tone, 44.1 kHz:48 kHz .................................. 25

Figure 18. Wideband FFT Plot (16k Points) 0 dBFS 1 kHz Tone, 48 kHz:44.1 kHz .................................. 25

Figure 19. Wideband FFT Plot (16k Points) 0 dBFS 1 kHz Tone, 48 kHz:96 kHz ..................................... 25

Figure 20. Wideband FFT Plot (16k Points) 0 dBFS 1 kHz Tone, 96 kHz:48 kHz ..................................... 25

Figure 21. Wideband FFT Plot (16k Points) 0 dBFS 1 kHz Tone, 192 kHz:48 kHz ................................... 26

Figure 22. Wideband FFT Plot (16k Points) -60 dBFS 1 kHz Tone, 48 kHz:96 kHz.................................. 26

Figure 23. Wideband FFT Plot (16k Points) -60 dBFS 1 kHz Tone, 48 kHz:48 kHz.................................. 26

Figure 24. Wideband FFT Plot (16k Points) -60 dBFS 1 kHz Tone, 44.1 kHz:192 kHz............................. 26

Figure 25. Wideband FFT Plot (16k Points) -60 dBFS 1 kHz Tone, 44.1 kHz:48 kHz............................... 26

Figure 26. Wideband FFT Plot (16k Points) -60 dBFS 1 kHz Tone, 48 kHz:44.1 kHz............................... 26

Figure 27. Wideband FFT Plot (16k Points) -60 dBFS 1 kHz Tone, 96 kHz:48 kHz.................................. 27

Figure 28. IMD, 10 kHz and 11 kHz -7 dBFS, 96 kHz:48 kHz ................................................................... 27

Figure 29. Wideband FFT Plot (16k Points) -60 dBFS 1 kHz Tone, 192 kHz:48 kHz................................ 27

Figure 30. IMD, 10 kHz and 11 kHz -7 dBFS, 48 kHz:44.1 kHz ................................................................ 27

Figure 31. IMD, 10 kHz and 11 kHz -7 dBFS, 44.1 kHz:48 kHz ................................................................ 27

Figure 32. Wideband FFT Plot (16k Points) 0 dBFS 20 kHz Tone, 44.1 kHz:48 kHz ................................ 27

Figure 33. Wideband FFT Plot (16k Points) 0 dBFS 80 kHz Tone, 192 kHz:192 kHz ............................... 28

Figure 34. Wideband FFT Plot (16k Points) 0 dBFS 20 kHz Tone, 48 kHz:96 kHz ................................... 28

Figure 35. Wideband FFT Plot (16k Points) 0 dBFS 20 kHz Tone, 48 kHz:48 kHz ................................... 28

Figure 36. Wideband FFT Plot (16k Points) 0 dBFS 20 kHz Tone, 96 kHz:48 kHz ................................... 28

Figure 37. Wideband FFT Plot (16k Points) 0 dBFS 20 kHz Tone, 48 kHz:44.1 kHz ................................ 28

Figure 38. THD+N vs. Output Sample Rate, 0 dBFS 1 kHz Tone, Fsi = 192 kHz ..................................... 28

Figure 39. THD+N vs. Output Sample Rate, 0 dBFS 1 kHz Tone, Fsi = 48 kHz ....................................... 29

Figure 40. THD+N vs. Output Sample Rate, 0 dBFS 1 kHz Tone, Fsi = 96 kHz ....................................... 29

Figure 41. THD+N vs. Output Sample Rate, 0 dBFS 1 kHz Tone, Fsi = 44.1 kHz .................................... 29

Figure 42. Dynamic Range vs. Output Sample Rate, -60 dBFS 1 kHz Tone, Fsi = 192 kHz .................... 29

Figure 43. THD+N vs. Output Sample Rate, 0 dBFS 1 kHz Tone, Fsi = 32 kHz ....................................... 29

Figure 44. Dynamic Range vs. Output Sample Rate, -60 dBFS 1 kHz Tone, Fsi = 32 kHz ...................... 29

Figure 45. Dynamic Range vs. Output Sample Rate, -60 dBFS 1 kHz Tone, Fsi = 96 kHz ...................... 30

Figure 46. Dynamic Range vs. Output Sample Rate, -60 dBFS 1 kHz Tone, Fsi = 44.1 kHz ................... 30

Figure 47. Frequency Response with 0 dBFS Input ..................................................................................30

Figure 48. Passband Ripple, 192 kHz:48 kHz ........................................................................................... 30

Figure 49. Dynamic Range vs. Output Sample Rate, -60 dBFS 1 kHz Tone, Fsi = 48 kHz ...................... 30

Figure 50. Linearity Error, 0 to -140 dBFS Input, 200 Hz Tone, 48 kHz:48 kHz ........................................ 30

Figure 51. Linearity Error, 0 to -140 dBFS Input, 200 Hz Tone, 48 kHz:44.1 kHz ..................................... 31

Figure 52. Linearity Error, 0 to -140 dBFS Input, 200 Hz Tone, 48 kHz:96 kHz ........................................ 31