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CS4223-BS Folha de dados(PDF) 3 Page - Cirrus Logic |
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CS4223-BS Folha de dados(HTML) 3 Page - Cirrus Logic |
3 / 32 page CS4223 CS4224 DS290PP3 3 DAC Control Byte (2)........................................................................................ 23 Output Attenuator Data Byte (3, 4) ................................................................... 23 DSP Port Mode Byte (5) ................................................................................... 24 Converter Status Report Byte (Read Only) (6)................................................. 24 Clock/Output Control Byte (7) .......................................................................... 25 5. PIN DESCRIPTIONS — CS4223............................................................................... 26 Power Supply ................................................................................................... 26 Analog Inputs ................................................................................................... 27 Analog Outputs................................................................................................. 27 Digital Inputs..................................................................................................... 27 Digital Outputs .................................................................................................. 28 Miscellaneous Pins........................................................................................... 28 6. PIN DESCRIPTIONS — CS4224............................................................................... 29 Power Supply ................................................................................................... 29 Analog Inputs ................................................................................................... 30 Analog Outputs................................................................................................. 30 Digital Inputs..................................................................................................... 30 Digital Outputs .................................................................................................. 31 Control Port Signals ......................................................................................... 31 Miscellaneous Pins........................................................................................... 32 7. PARAMETER DEFINITIONS..................................................................................... 33 8. PACKAGE DIMENSIONS ......................................................................................... 34 LIST OF FIGURES Figure 1. Serial Audio Port Data I/O Timing ..................................................................... 6 Figure 2. SPI Control Port Timing ..................................................................................... 7 Figure 3. I2C Control Port Timing ..................................................................................... 8 Figure 4. CS4223 Recommended Connection Diagram ................................................ 10 Figure 5. CS4224 Recommended Connection Diagram ................................................ 11 Figure 6. Optional Line Input Buffer ................................................................................ 13 Figure 7. Single-ended Input Application ........................................................................ 13 Figure 8. Full Scale Input/Output Voltage ....................................................................... 14 Figure 9. Hybrid Analog/Digital Attenuation .................................................................... 15 Figure 10. 2- and 3-Pole Butterworth Filters ................................................................... 15 Figure 11. Audio DSP Data Input Formats. .................................................................... 17 Figure 12. Control Port Timing, SPI mode ...................................................................... 18 Figure 13. Control Port Timing, I2C mode ...................................................................... 18 Figure 14. De-emphasis Curve. ...................................................................................... 19 Figure 15. Suggested Layout Guideline (See CDB4223/4 Data Sheet) ......................... 20 Figure 16. ADC Filter Response ..................................................................................... 21 Figure 17. ADC Passband Ripplee ................................................................................. 21 Figure 18. ADC Transition Band ..................................................................................... 21 Figure 19. DAC Filter Response ..................................................................................... 21 Figure 20. DAC Passband Ripple ................................................................................... 21 Figure 21. DAC Transition Band ..................................................................................... 21 LIST OF TABLES Table 1. CS4224 vs. CS4223 ........................................................................................... 12 Table 2. High Pass Filter Characteristics ......................................................................... 14 Table 4. Master Mode vs. Slave Mode Clocking. ............................................................. 16 Table 3. Common Clock Frequencies .............................................................................. 16 Table 5. CS4223 De-Emphasis filter control .................................................................... 19 |
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