wm9001 Wolfson Microelectronics plc, wm9001 Datasheet - Page 2

• Manufacturer Part Number: wm9001
• Description: 1w Dual-mode Class Ab/d Speaker Driver
• Manufacturer: Wolfson Microelectronics plc

WM9001
DESCRIPTION .......................................................................................................1
FEATURES.............................................................................................................1
APPLICATIONS .....................................................................................................1
TABLE OF CONTENTS .........................................................................................2
PIN CONFIGURATION...........................................................................................3
ORDERING INFORMATION ..................................................................................3
PIN DESCRIPTION ................................................................................................4
ABSOLUTE MAXIMUM RATINGS.........................................................................5
RECOMMENDED OPERATING CONDITIONS .....................................................5
THERMAL PERFORMANCE .................................................................................6
POWER DE-RATING .............................................................................................7
ELECTRICAL CHARACTERISTICS ......................................................................8
TERMINOLOGY .....................................................................................................9
TYPICAL POWER CONSUMPTION ....................................................................10
SPEAKER DRIVER PERFORMANCE .................................................................11
PSRR PERFORMANCE.......................................................................................12
EFFICIENCY ........................................................................................................13
AUDIO SIGNAL PATHS.......................................................................................14
DEVICE DESCRIPTION.......................................................................................15
RF NOISE SUPPRESSION ..................................................................................18
POPS / CLICK SUPPRESSION ...........................................................................18
APPLICATIONS INFORMATION .........................................................................19
PACKAGE DIMENSIONS ....................................................................................24
IMPORTANT NOTICE ..........................................................................................25
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CLASS D MODE .......................................................................................................... 11
CLASS AB MODE ........................................................................................................ 11
INTRODUCTION.......................................................................................................... 15
POWER ON RESET .................................................................................................... 15
ENABLE....................................................................................................................... 15
INPUT SIGNAL PATH.................................................................................................. 16
SYNC ........................................................................................................................... 16
SPEAKER DRIVER MODE SELECT............................................................................ 17
SIGNAL BOOST CONTROL ........................................................................................ 17
THERMAL SHUTDOWN .............................................................................................. 18
EXTERNAL COMPONENTS........................................................................................ 23
ADDRESS.................................................................................................................... 25
TABLE OF CONTENTS
PP, June 2009, Rev 3.2
Pre-Production
2