CDB4385 datasheet(2/56 Pages) CIRRUS

2 / 56 page

CS4385

DS671A1

TABLE OF CONTENTS

1. PIN DESCRIPTION ................................................................................................................... 4

2. CHARACTERISTICS AND SPECIFICATIONS ........................................................................ 6

SPECIFIED OPERATING CONDITIONS ................................................................................. 6

ABSOLUTE MAXIMUM RATINGS ........................................................................................... 6

DAC ANALOG CHARACTERISTICS ....................................................................................... 7

POWER AND THERMAL CHARACTERISTICS....................................................................... 8

COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE........................... 9

DSD COMBINED DIGITAL AND ON-CHIP ANALOG FILTER RESPONSE.......................... 10

DIGITAL CHARACTERISTICS ............................................................................................... 11

SWITCHING CHARACTERISTICS - PCM ............................................................................. 12

SWITCHING CHARACTERISTICS - DSD.............................................................................. 13

SWITCHING CHARACTERISTICS - CONTROL PORT - I2C FORMAT ................................ 14

SWITCHING CHARACTERISTICS - CONTROL PORT - SPI FORMAT ............................... 15

3. APPLICATIONS ...................................................................................................................... 18

3.1 Master Clock .................................................................................................................... 18

3.2 Mode Select ..................................................................................................................... 19

3.3 Digital Interface Formats .................................................................................................20

3.3.1 OLM #1 ............................................................................................................... 21

3.3.2 OLM #2 ............................................................................................................... 22

3.3.3 OLM #3 ............................................................................................................... 22

3.3.4 OLM #4 ............................................................................................................... 22

3.3.5 TDM .................................................................................................................... 23

3.4 Oversampling Modes ....................................................................................................... 23

3.5 Interpolation Filter ............................................................................................................ 23

3.6 De-Emphasis ................................................................................................................... 24

3.7 ATAPI Specification ......................................................................................................... 25

3.8 Direct Stream Digital (DSD) Mode ................................................................................... 25

3.9 Grounding and Power Supply Arrangements .................................................................. 26

3.9.1 Capacitor Placement ........................................................................................... 27

3.10 Analog Output and Filtering ........................................................................................... 27

3.11 The MUTEC Outputs ..................................................................................................... 29

3.12 Recommended Power-up Sequence ............................................................................. 30

3.12.1 Hardware Mode ................................................................................................. 30

3.12.2 Software Mode .................................................................................................. 30

3.13 Control Port Interface ..................................................................................................... 31

3.13.1 MAP Auto Increment ......................................................................................... 31

3.13.2 I2C Mode ........................................................................................................... 31

3.13.3 SPI Mode .......................................................................................................... 33

3.14 Memory Address Pointer (MAP)

.............................................................................. 34

4. REGISTER QUICK REFERENCE ......................................................................................... 35

5. REGISTER DESCRIPTION .................................................................................................... 37

6. PARAMETER DEFINITIONS .................................................................................................. 49

7. REFERENCES ........................................................................................................................ 49

8. PACKAGE DIMENSIONS ....................................................................................................... 50

9. APPENDIX

......................................................................................................................... 51

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