CS47L24 datasheet(3/256 Pages) CIRRUS

3 / 256 page

CS47L24

Rev 4.1

TABLE OF CONTENTS

PIN CONFIGURATION

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

ORDERING INFORMATION

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

PIN DESCRIPTION

.............................................................................................................................. 7

ABSOLUTE MAXIMUM RATINGS

.................................................................................................... 10

RECOMMENDED OPERATING CONDITIONS

................................................................................. 11

ELECTRICAL CHARACTERISTICS

.................................................................................................. 12

TERMINOLOGY

.............................................................................................................................................. 19

TYPICAL PERFORMANCE

............................................................................................................... 20

TYPICAL POWER CONSUMPTION

............................................................................................................... 20

TYPICAL SIGNAL LATENCY

.......................................................................................................................... 21

SIGNAL TIMING REQUIREMENTS

................................................................................................... 22

SYSTEM CLOCK & FREQUENCY LOCKED LOOP (FLL)

............................................................................. 22

AUDIO INTERFACE TIMING

.......................................................................................................................... 24

DIGITAL MICROPHONE (DMIC) INTERFACE TIMING................................................................................................................................................ 24

DIGITAL AUDIO INTERFACE - MASTER MODE ......................................................................................................................................................... 25

DIGITAL AUDIO INTERFACE - SLAVE MODE............................................................................................................................................................. 26

DIGITAL AUDIO INTERFACE - TDM MODE ................................................................................................................................................................ 27

CONTROL INTERFACE TIMING

.................................................................................................................... 28

JTAG INTERFACE TIMING

............................................................................................................................. 29

DEVICE DESCRIPTION

..................................................................................................................... 30

INTRODUCTION

............................................................................................................................................. 30

HI-FI AUDIO CODEC..................................................................................................................................................................................................... 30

DIGITAL AUDIO CORE ................................................................................................................................................................................................. 31

DIGITAL INTERFACES ................................................................................................................................................................................................. 31

OTHER FEATURES ...................................................................................................................................................................................................... 32

INPUT SIGNAL PATH

..................................................................................................................................... 33

DIGITAL MICROPHONE INPUT ................................................................................................................................................................................... 33

INPUT SIGNAL PATH ENABLE .................................................................................................................................................................................... 35

INPUT SIGNAL PATH SAMPLE RATE CONTROL....................................................................................................................................................... 36

INPUT SIGNAL PATH CONFIGURATION .................................................................................................................................................................... 36

INPUT SIGNAL PATH DIGITAL VOLUME CONTROL.................................................................................................................................................. 38

DIGITAL MICROPHONE INTERFACE PULL-DOWN ................................................................................................................................................... 42

DIGITAL CORE

............................................................................................................................................... 43

DIGITAL CORE MIXERS ............................................................................................................................................................................................... 45

DIGITAL CORE INPUTS ............................................................................................................................................................................................... 48

DIGITAL CORE OUTPUT MIXERS ............................................................................................................................................................................... 49

5-BAND PARAMETRIC EQUALISER (EQ) ................................................................................................................................................................... 52

DYNAMIC RANGE CONTROL (DRC) ........................................................................................................................................................................... 55

LOW PASS / HIGH PASS DIGITAL FILTER (LHPF)..................................................................................................................................................... 68

DIGITAL CORE DSP ..................................................................................................................................................................................................... 70

TONE GENERATOR ..................................................................................................................................................................................................... 73

NOISE GENERATOR .................................................................................................................................................................................................... 74

HAPTIC SIGNAL GENERATOR .................................................................................................................................................................................... 75

PWM GENERATOR....................................................................................................................................................................................................... 78

SAMPLE RATE CONTROL ........................................................................................................................................................................................... 80

ASYNCHRONOUS SAMPLE RATE CONVERTER (ASRC) ......................................................................................................................................... 85

ISOCHRONOUS SAMPLE RATE CONVERTER (ISRC) .............................................................................................................................................. 88

DSP FIRMWARE CONTROL

.......................................................................................................................... 95

DSP FIRMWARE MEMORY CONTROL ....................................................................................................................................................................... 95

DSP FIRMWARE EXECUTION ................................................................................................................................................................................... 100

DSP DIRECT MEMORY ACCESS (DMA) CONTROL ................................................................................................................................................ 100

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