WM9082 datasheet(2/24 Pages) WOLFSON

2 / 24 page

WM9082

Production Data

PD, August 2012, Rev 4.1

TABLE OF CONTENTS

DESCRIPTION....................................................................................................... 1

FEATURES............................................................................................................ 1

APPLICATIONS..................................................................................................... 1

BLOCK DIAGRAM ................................................................................................ 1

TABLE OF CONTENTS......................................................................................... 2

PIN CONFIGURATION .......................................................................................... 3

ORDERING INFORMATION.................................................................................. 3

PIN DESCRIPTION................................................................................................ 3

ABSOLUTE MAXIMUM RATINGS ........................................................................ 4

RECOMMENDED OPERATING CONDITIONS..................................................... 4

ELECTRICAL CHARACTERISTICS ..................................................................... 5

TERMINOLOGY............................................................................................................... 6

TYPICAL PERFORMANCE ................................................................................... 7

SIGNAL TIMING REQUIREMENTS ...................................................................... 8

PDM AUDIO INTERFACE TIMING .................................................................................. 8

DEVICE DESCRIPTION ........................................................................................ 9

INTRODUCTION.............................................................................................................. 9

PDM AUDIO INTERFACE................................................................................................ 9

DEVICE CONTROL CODES.......................................................................................... 10

INITIAL POWER-UP..................................................................................................................................12

CONFIGURATION EVENTS .....................................................................................................................12

START-UP EVENTS .................................................................................................................................13

STANDBY EVENTS ..................................................................................................................................14

SHUTDOWN EVENTS ..............................................................................................................................14

STATE TRANSITION DIAGRAM...............................................................................................................15

SPEAKER DRIVER........................................................................................................ 16

RESETS AND SHUTDOWN .......................................................................................... 16

APPLICATIONS INFORMATION ........................................................................ 17

RECOMMENDED EXTERNAL COMPONENTS............................................................ 17

PCB LAYOUT CONSIDERATIONS ............................................................................... 20

PACKAGE DIMENSIONS.................................................................................... 21

PACKAGE DIAGRAM FOR DEVICES MARKED LT9 ................................................... 21

PACKAGE DIAGRAM FOR DEVICES MARKED JC5 ................................................... 22

IMPORTANT NOTICE ......................................................................................... 23

ADDRESS: ..................................................................................................................... 23

REVISION HISTORY ........................................................................................... 24

WM9082 Datasheet(PDF) 2 Page - Wolfson Microelectronics plc