CS5321 datasheet(3/38 Pages) CIRRUS

3 / 38 page

CS5320/21/22

DS454PP1

4. CS5322 PIN DESCRIPTIONS ....................................................................... 31

Power Supplies ........................................................................................ 31

Digital Outputs .......................................................................................... 31

Digital Inputs ............................................................................................. 32

5. ORDERING INFORMATION ......................................................................... 34

6. PARAMETER DEFINITIONS......................................................................... 35

7. PACKAGE DIMENSIONS ............................................................................. 36

LIST OF FIGURES

Figure 1. Rise and Fall Times ..................................................................................... 6

Figure 2. CS5320 and CS5321 Interface Timing, HBR=1 .......................................... 6

Figure 3. CS5322 Filter Response ............................................................................. 8

Figure 4. CS5322 Digital Filter Passband Ripple f0 = 62.5 Hz ................................... 8

Figure 5. CS5322 Digital Filter Passband Ripple f0 = 125 Hz ................................... 8

Figure 6. CS5322 Digital Filter Passband Ripple f0 = 250 Hz ................................... 8

Figure 7. CS5322 Digital Filter Passband Ripple f0 = 500 Hz ................................... 9

Figure 8. CS5322 Digital Filter Passband Ripple f0 = 1000 Hz ................................. 9

Figure 9. CS5322 Digital Filter Passband Ripple f0 = 2000 Hz ................................. 9

Figure 10. CS5322 Digital Filter Passband Ripple f0 = 4000 Hz ............................... 9

Figure 11. CS5322 Impulse Response f0 = 62.5 Hz ................................................... 9

Figure 12. CS5322 Impulse Response f0 = 1000 Hz .................................................. 9

Figure 13. CS5322 Serial Port Timing ...................................................................... 11

Figure 14. TDATA Setup/Hold Timing ...................................................................... 12

Figure 15. DRDY Timing .......................................................................................... 13

Figure 16. RESET Timing ......................................................................................... 13

Figure 17. CS5320/21/CS5322 Interface Timing ...................................................... 14

Figure 18. CS5320/21 Block Diagram ...................................................................... 16

Figure 19. CS5322 Block Diagram ........................................................................... 17

Figure 20. System Connection Diagram ................................................................... 19

Figure 21. 4.5 Voltage Reference with two filter options .......................................... 20

Figure 22. 1024 Point FFT Plot with -20 dB Input, 100 Hz Input, ten averages ....... 22

Figure 23. 1024 Point FFT Plot with Full Scale Input, 100 Hz Input, ten averages .. 22

Figure 24. 1024 Point FFT Plot with Full Scale Input, 100 Hz Input, ten averages .. 22

LIST OF TABLES

Table 1.

Output Coding for the CS5320/21 and CS5322 Combination ................. 21

Table 2. Configuration Data Bits ............................................................................ 24

Table 3. Status Data (from the SOD Pin) ............................................................... 26

Table 4. Bandwidth Selection: Truth Table ............................................................ 27

Table 5. Detailed Ordering Information .................................................................. 34

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