WM8734

Production Data

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PD Rev 4.1 November 2006

2

TABLE OF CONTENTS

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

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

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

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

PIN CONFIGURATION – SSOP.............................................................................3

ORDERING INFORMATION - SSOP .....................................................................3

PIN DESCRIPTION - SSOP ...................................................................................4

PIN CONFIGURATION – QFN ...............................................................................5

ORDERING INFORMATION - QFN........................................................................5

PIN DESCRIPTION - QFN......................................................................................6

ABSOLUTE MAXIMUM RATINGS .........................................................................7

RECOMMENDED OPERATING CONDITIONS .....................................................7

ELECTRICAL CHARACTERISTICS ......................................................................8

TERMINOLOGY .....................................................................................................9

POWER CONSUMPTION (EXAMPLES) .............................................................10

MASTER CLOCK TIMING....................................................................................11

DIGITAL AUDIO INTERFACE – MASTER MODE ....................................................... 11

DIGITAL AUDIO INTERFACE – SLAVE MODE .......................................................... 12

MPU INTERFACE TIMING .......................................................................................... 14

DEVICE DESCRIPTION .......................................................................................16

AUDIO SIGNAL PATH................................................................................................. 16

DEVICE OPERATION ................................................................................................. 22

AUDIO DATA SAMPLING RATES............................................................................... 27

ACTIVATING DSP AND DIGITAL AUDIO INTERFACE .............................................. 32

SOFTWARE CONTROL INTERFACE......................................................................... 32

POWER DOWN MODES ............................................................................................ 34

REGISTER MAP ......................................................................................................... 36

DIGITAL FILTER CHARACTERISTICS ...............................................................38

TERMINOLOGY .......................................................................................................... 39

DAC FILTER RESPONSES .................................................................................39

ADC FILTER RESPONSES .................................................................................39

ADC HIGH PASS FILTER ........................................................................................... 40

DIGITAL DE-EMPHASIS CHARACTERISTICS ...................................................40

APPLICATIONS INFORMATION .........................................................................42

RECOMMENDED EXTERNAL COMPONENTS .......................................................... 42

MINIMISING POP NOISE AT THE ANALOGUE OUTPUTS........................................ 43

PACKAGE DIMENSIONS (SSOP) .......................................................................44

PACKAGE DIMENSIONS (QFN) .........................................................................45

IMPORTANT NOTICE ..........................................................................................46

ADDRESS: .................................................................................................................. 46