CS4224KS 参数 Datasheet PDF下载

CS4223 CS4224

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

PIN DESCRIPTIONS — CS4223............................................................................... 26

Power Supply ................................................................................................... 26

Analog Inputs ................................................................................................... 27

Analog Outputs................................................................................................. 27

Digital Inputs..................................................................................................... 27

Digital Outputs .................................................................................................. 28

Miscellaneous Pins........................................................................................... 28

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

PARAMETER DEFINITIONS..................................................................................... 33

PACKAGE DIMENSIONS ......................................................................................... 34

5.

6.

7.

8.

LIST OF FIGURES

Figure 1. Serial Audio Port Data I/O Timing ..................................................................... 6

Figure 2. SPI Control Port Timing ..................................................................................... 7

Figure 3. I

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C Control Port Timing ..................................................................................... 8

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, I

2

C 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

DS290PP3

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