CS4227 Datasheet, PDF (3/36 Pages) Cirrus Logic – Six Channel, 20-Bit Codec

CS4227
2.11 Power Supply, Layout, and Grounding .......................................................................... 19
2.12 ADC and DAC Filter Response Plots ............................................................................ 20
3. PIN DESCRIPTIONS .............................................................................................................. 29
4. PARAMETER DEFINITIONS .................................................................................................. 33
5. PACKAGE DIMENSIONS ...................................................................................................... 34
LIST OF FIGURES
Figure 1. Audio Ports Master Mode Timing..................................................................................... 7
Figure 2. Audio Ports Slave Mode and Data I/O Timing ................................................................. 7
Figure 3. Control Port SPI Mode ..................................................................................................... 8
Figure 4. Control Port I²C Mode...................................................................................................... 9
Figure 5. Recommended Connection Diagram............................................................................. 11
Figure 6. Optional Line Intput Buffer ............................................................................................. 12
Figure 7. Butterworth Filters.......................................................................................................... 13
Figure 8. Audio DSP and Auxiliary Port Data Input Formats ........................................................ 16
Figure 9. Audio DSP Port Data Output Formats ........................................................................... 16
Figure 10. One Data Line Modes .................................................................................................. 16
Figure 11. Control Port Timing, SPI Mode .................................................................................... 17
Figure 12. Control Port Timing, I²C^® Mode................................................................................... 18
Figure 13. De-emphasis Curve. .................................................................................................... 19
Figure 14. Suggested Layout Guideline........................................................................................ 20
Figure 15. 20-bit ADC Filter Response ......................................................................................... 21
Figure 16. 20-bit ADC Passband Ripple ....................................................................................... 21
Figure 17. 20-bit ADC Transition Band ......................................................................................... 21
Figure 18. DAC Frequency Response .......................................................................................... 21
Figure 19. DAC Passband Ripple ................................................................................................. 21
Figure 20. DAC Transition Band ................................................................................................... 21
LIST OF TABLES
Table 1. Single-ended vs Differential Input Pin Assignments .............................................................. 12
Table 2. High Pass Filter Characteristics ............................................................................................ 13
Table 3. DSP Serial Input Ports........................................................................................................... 15
DS281PP2
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