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CS42438-DMZR Scheda tecnica(PDF) 4 Page - Cirrus Logic |
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4 / 62 page 4 DS646F1 CS42438 8.2 DAC Output Filter ........................................................................................................................... 53 9. ADC FILTER PLOTS............................................................................................................................. 54 10. DAC FILTER PLOTS........................................................................................................................... 56 11. PARAMETER DEFINITIONS............................................................................................................... 58 12. REFERENCES..................................................................................................................................... 59 13. PACKAGE INFORMATION................................................................................................................. 60 13.1 Thermal Characteristics ............................................................................................................. 60 14. ORDERING INFORMATION ............................................................................................................... 61 15. REVISION HISTORY ........................................................................................................................... 61 LIST OF FIGURES Figure 1.Typical Connection Diagram (Software Mode) ........................................................................... 11 Figure 2.Typical Connection Diagram (Hardware Mode) .......................................................................... 12 Figure 3.Output Test Circuit for Maximum Load ....................................................................................... 19 Figure 4.Maximum Loading ....................................................................................................................... 19 Figure 5.TDM Serial Audio Interface Timing ............................................................................................. 21 Figure 6.Serial Audio Interface Slave Mode Timing .................................................................................. 22 Figure 7.Control Port Timing - I²C Format ................................................................................................. 23 Figure 8.Control Port Timing - SPI Format ................................................................................................ 24 Figure 9.Full-Scale Input ........................................................................................................................... 28 Figure 10.ADC3 Input Topology ................................................................................................................ 28 Figure 11.Audio Output Initialization Flow Chart ....................................................................................... 31 Figure 12.Full-Scale Output ...................................................................................................................... 32 Figure 13.De-Emphasis Curve .................................................................................................................. 33 Figure 14.TDM Serial Audio Format ......................................................................................................... 34 Figure 15.AUX I²S Format ......................................................................................................................... 34 Figure 16.AUX Left-Justified Format ......................................................................................................... 35 Figure 17.Control Port Timing in SPI Mode .............................................................................................. 36 Figure 18.Control Port Timing, I²C Write ................................................................................................... 36 Figure 19.Control Port Timing, I²C Read ................................................................................................... 37 Figure 20.Single to Differential Active Input Filter ..................................................................................... 50 Figure 21.Single-Ended Active Input Filter ................................................................................................ 50 Figure 22.Passive Input Filter ................................................................................................................... 51 Figure 23.Passive Input Filter w/Attenuation ............................................................................................. 52 Figure 24.Active Analog Output Filter ....................................................................................................... 53 Figure 25.Passive Analog Output Filter .................................................................................................... 53 Figure 26.SSM Stopband Rejection .......................................................................................................... 54 Figure 27.SSM Transition Band ................................................................................................................ 54 Figure 28.SSM Transition Band (Detail) ................................................................................................... 54 Figure 29.SSM Passband Ripple .............................................................................................................. 54 Figure 30.DSM Stopband Rejection .......................................................................................................... 54 Figure 31.DSM Transition Band ................................................................................................................ 54 Figure 32.DSM Transition Band (Detail) ................................................................................................... 55 Figure 33.DSM Passband Ripple .............................................................................................................. 55 Figure 34.SSM Stopband Rejection .......................................................................................................... 56 Figure 35.SSM Transition Band ................................................................................................................ 56 Figure 36.SSM Transition Band (detail) .................................................................................................... 56 Figure 37.SSM Passband Ripple .............................................................................................................. 56 Figure 38.DSM Stopband Rejection .......................................................................................................... 56 Figure 39.DSM Transition Band ................................................................................................................ 56 Figure 40.DSM Transition Band (detail) .................................................................................................... 57 Figure 41.DSM Passband Ripple .............................................................................................................. 57 Figure 42.QSM Stopband Rejection ......................................................................................................... 57 |
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