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CS4222 Datasheet(PDF) 3 Page - Cirrus Logic |
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CS4222 Datasheet(HTML) 3 Page - Cirrus Logic |
3 / 29 page CS4222 DS236F1 3 4.6 Control Port Interface ...................................................................................................... 21 4.6.1 SPI Mode ............................................................................................................ 21 4.6.2 I2C Mode ............................................................................................................. 22 4.6.3 Control Port Bit Definitions .................................................................................. 22 4.7 De-Emphasis ................................................................................................................... 22 4.8 Power-up / Reset / Power Down / Calibration ................................................................. 23 4.9 Power Supply, Layout and Grounding ............................................................................. 23 4.10 ADC and DAC Filter Response Plots ............................................................................ 24 5. REGISTER DESCRIPTIONS .............................................................. 25 5. Memory Address Pointer (MAP) ......................................................................................... 25 5. Reserved Byte (0)...............................................................................................................25 5. ADC Control Byte (1) .......................................................................................................... 25 5. DAC Control Byte (2) .......................................................................................................... 26 5. Output Attenuator Data Byte (3, 4) ..................................................................................... 26 5. DSP Port Mode Byte (5) ..................................................................................................... 27 5. Converter Status Report Byte (Read Only) (6) ................................................................... 27 6. PARAMETER DEFINITIONS .............................................................. 28 7. PACKAGE DIMENSIONS ................................................................... 29 LIST OF FIGURES Figure 1. Serial Audio Interface Timing........................................................................................... 9 Figure 2. Control Port Timing - SPI Mode ..................................................................................... 10 Figure 3. Control Port Timing - I2C Mode ..................................................................................... 11 Figure 4. CS4222 Recommended Connection Diagram............................................................... 13 Figure 5. Optional Line Input Buffer .............................................................................................. 15 Figure 6. Full Scale Input/Output Voltage ..................................................................................... 15 Figure 7. 2- and 3-Pole Butterworth Filters ................................................................................... 17 Figure 8. Hybrid Analog/Digital Attenuation .................................................................................. 18 Figure 9. Audio DSP Data Input Formats...................................................................................... 20 Figure 10. Audio DSP Data Output Formats................................................................................. 20 Figure 11. Control Port Timing, SPI mode .................................................................................... 21 Figure 12. Control Port Timing, I2C mode ..................................................................................... 22 Figure 13. De-emphasis Curve. .................................................................................................... 22 Figure 14. ADC Filter Response ................................................................................................... 24 Figure 15. ADC Passband Ripplee ............................................................................................... 24 Figure 16. ADC Transition Band ................................................................................................... 24 Figure 17. DAC Filter Response ................................................................................................... 24 Figure 18. DAC Passband Ripple ................................................................................................. 24 Figure 19. DAC Transition Band ................................................................................................... 24 LIST OF TABLES Table 1. Control Port vs. Stand-Alone Mode ....................................................................................... 14 Table 2. High Pass Filter Characteristics ............................................................................................16 Table 3. Common Clock Frequencies ................................................................................................. 19 Table 4. De-Emphasis filter control ..................................................................................................... 22 |
Similar Part No. - CS4222_02 |
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Similar Description - CS4222_02 |
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