CS4244 datasheet(2/63 Pages) CIRRUS

2 / 63 page

DS900F2

CS4244

TABLE OF CONTENTS

1. PIN DESCRIPTIONS ............................................................................................................................ 5

1.1 I/O Pin Characteristics ...................................................................................................................... 6

2. TYPICAL CONNECTION DIAGRAM ................................................................................................... 7

3. CHARACTERISTICS AND SPECIFICATIONS ...................................................................................... 8

RECOMMENDED OPERATING CONDITIONS ..................................................................................... 8

ABSOLUTE MAXIMUM RATINGS ......................................................................................................... 8

DC ELECTRICAL CHARACTERISTICS ................................................................................................ 9

TYPICAL CURRENT CONSUMPTION ................................................................................................ 10

ANALOG INPUT CHARACTERISTICS (COMMERCIAL GRADE) ...................................................... 11

ANALOG INPUT CHARACTERISTICS (AUTOMOTIVE GRADE) ....................................................... 12

ADC DIGITAL FILTER CHARACTERISTICS ....................................................................................... 14

ANALOG OUTPUT CHARACTERISTICS (COMMERCIAL GRADE) .................................................. 15

ANALOG OUTPUT CHARACTERISTICS (AUTOMOTIVE GRADE) ................................................... 16

COMBINED DAC INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE .............................. 17

DIGITAL I/O CHARACTERISTICS ....................................................................................................... 18

SWITCHING CHARACTERISTICS - SERIAL AUDIO INTERFACE .................................................... 19

SWITCHING SPECIFICATIONS - CONTROL PORT .......................................................................... 21

4. APPLICATIONS ................................................................................................................................... 22

4.1 Power Supply Decoupling, Grounding, and PCB Layout ............................................................... 22

4.2 Recommended Power-up & Power-down Sequence ..................................................................... 22

4.3 I²C Control Port ............................................................................................................................... 24

4.4 System Clocking ............................................................................................................................. 26

4.5 Serial Port Interface ........................................................................................................................ 28

4.6 Internal Signal Path ....................................................................................................................... 31

4.7 Reset Line ...................................................................................................................................... 42

4.8 Error Reporting and Interrupt Behavior .......................................................................................... 42

5. REGISTER QUICK REFERENCE ........................................................................................................ 45

6. REGISTER DESCRIPTIONS ................................................................................................................ 47

6.1 Device I.D. A–F (Address 01h–03h) (Read Only)

....................................................................... 47

6.2 Revision I.D. (Address 05h) (Read Only) ....................................................................................... 47

6.3 Clock & SP Select (Address 06h) ................................................................................................... 48

6.4 Sample Width Select (Address 07h) ............................................................................................... 49

6.5 Serial Port Control (Address 08h) ................................................................................................... 49

6.6 Serial Port Data Select (Address 09h) ............................................................................................ 50

6.7 ADC Control 1 (Address 0Fh) ......................................................................................................... 51

6.8 ADC Control 2 (Address 10h) ......................................................................................................... 51

6.9 DAC Control 1 (Address 12h) ......................................................................................................... 52

6.10 DAC Control 2 (Address 13h) ....................................................................................................... 52

6.11 DAC Control 3 (Address 14h) ....................................................................................................... 53

6.12 DAC Control 4 (Address 15h) ....................................................................................................... 53

6.13 Volume Mode (Address 16h) ........................................................................................................ 54

6.14 Master and DAC1-4 Volume Control (Address 17h, 18h, 19h, 1Ah, & 1Bh) ................................ 55

6.15 Interrupt Control (Address 1Eh) .................................................................................................... 55

6.16 Interrupt Mask 1 (Address 1Fh) .................................................................................................... 56

6.17 Interrupt Mask 2 (Address 20h) .................................................................................................... 57

6.18 Interrupt Notification 1 (Address 21h) (Read Only) ...................................................................... 57

6.19 Interrupt Notification 2 (Address 22h) (Read Only) ...................................................................... 58

7. ADC FILTER PLOTS ............................................................................................................................ 59

8. DAC FILTER PLOTS ............................................................................................................................ 60

9. PACKAGE DIMENSIONS ................................................................................................................... 62

10. ORDERING INFORMATION .............................................................................................................. 63

11. REVISION HISTORY .......................................................................................................................... 63

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