CS42436 datasheet(2/66 Pages) CIRRUS

2 / 66 page

DS647PP2

TABLE OF CONTENTS

1 PIN DESCRIPTION - SOFTWARE MODE

.............................................................................. 6

1.1 Digital I/O Pin Characteristics ............................................................................................7

2 PIN DESCRIPTIONS - HARDWARE MODE

...................................................................... 9

3 TYPICAL CONNECTION DIAGRAMS ................................................................................... 11

4 CHARACTERISTICS AND SPECIFICATIONS ....................................................................... 13

SPECIFIED OPERATING CONDITIONS ............................................................................... 13

ABSOLUTE MAXIMUM RATINGS ......................................................................................... 13

ANALOG INPUT CHARACTERISTICS (CS42436-CMZ)....................................................... 14

ANALOG INPUT CHARACTERISTICS (CS42436-DMZ)....................................................... 15

ADC DIGITAL FILTER CHARACTERISTICS ......................................................................... 16

ANALOG OUTPUT CHARACTERISTICS (CS42436-CMZ)................................................... 17

ANALOG OUTPUT CHARACTERISTICS (CS42436-DMZ)................................................... 19

COMBINED DAC INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE ................ 21

SWITCHING SPECIFICATIONS - ADC/DAC PORT .............................................................. 22

SWITCHING CHARACTERISTICS - AUX PORT................................................................... 23

SWITCHING SPECIFICATIONS - CONTROL PORT - I²C MODE......................................... 24

SWITCHING SPECIFICATIONS - CONTROL PORT - SPI FORMAT ................................... 25

DC ELECTRICAL CHARACTERISTICS................................................................................. 26

DIGITAL INTERFACE SPECIFICATIONS & CHARACTERISTICS ....................................... 26

5 APPLICATIONS ....................................................................................................................... 27

5.1 Overview .......................................................................................................................... 27

5.2 Analog Inputs ................................................................................................................... 28

5.2.1 Line Level Inputs ................................................................................................. 28

5.2.2 ADC3 Analog Input ............................................................................................. 29

5.2.3 High Pass Filter and DC Offset Calibration ......................................................... 30

5.3 Analog Outputs ................................................................................................................ 31

5.3.1 Initialization ......................................................................................................... 31

5.3.2 Line-level Outputs and Filtering .......................................................................... 31

5.3.3 Digital Volume Control ........................................................................................ 33

5.3.4 De-Emphasis Filter .............................................................................................. 33

5.4 System Clocking .............................................................................................................. 34

5.5 CODEC Digital Interface .................................................................................................. 34

5.5.1 TDM .................................................................................................................... 34

5.5.2 I/O Channel Allocation ........................................................................................ 35

5.6 AUX Port Digital Interface Formats .................................................................................. 36

5.6.1 I²S ........................................................................................................................ 36

5.6.2 Left Justified ........................................................................................................ 36

5.7 Control Port Description and Timing ................................................................................ 37

5.7.1 SPI Mode ............................................................................................................ 37

5.7.2 I2C Mode ............................................................................................................. 38

5.8 Recommended Power-up Sequence ............................................................................... 39

5.8.1 Hardware Mode ................................................................................................... 39

5.8.2 Software Mode .................................................................................................... 39

5.9 Reset and Power-up ....................................................................................................... 39

5.10 Power Supply, Grounding, and PCB layout ................................................................... 40

6 REGISTER QUICK REFERENCE ........................................................................................... 41

7 REGISTER DESCRIPTION ..................................................................................................... 43

7.1 Memory Address Pointer (MAP) ....................................................................................... 43

7.2 Chip I.D. and Revision Register (address 01h) (Read Only) ............................................ 43

7.3 Power Control (address 02h) ............................................................................................ 44

7.4 Functional Mode (address 03h) ........................................................................................ 45

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