WM9713 datasheet(2/111 Pages) WOLFSON

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WM9713L

Preliminary Technical Data

PTD, March 2004, Rev 2.2

TABLE OF CONTENTS

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

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

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

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

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

PIN CONFIGURATION...........................................................................................4

ORDERING INFORMATION ..................................................................................4

PIN DESCRIPTION ................................................................................................5

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

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

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

AUDIO OUTPUTS.......................................................................................................... 8

AUDIO INPUTS.............................................................................................................. 9

AUXILIARY MONO DAC (AUXDAC).............................................................................. 9

PCM VOICE DAC (VXDAC) ........................................................................................... 9

TOUCHPANEL AND AUXILIARY ADC ........................................................................ 10

COMPARATORS ......................................................................................................... 10

REFERENCE VOLTAGES ........................................................................................... 10

DIGITAL INTERFACE CHARACTERISTICS................................................................ 11

HEADPHONE / SPEAKER OUTPUT THD VERSUS POWER ..................................... 12

POWER CONSUMPTION ....................................................................................13

DEVICE DESCRIPTION .......................................................................................14

INTRODUCTION.......................................................................................................... 14

AUDIO PATHS OVERVIEW......................................................................................... 16

CLOCK GENERATION ................................................................................................ 17

CLOCK DIVISION MODES .......................................................................................... 17

PLL MODE ................................................................................................................... 20

DATA AND CONTROL INTERFACE............................................................................ 22

AC97 INTERFACE ....................................................................................................... 22

PCM INTERFACE ........................................................................................................ 23

AUDIO ADCS .......................................................................................................28

STEREO ADC.............................................................................................................. 28

RECORD SELECTOR ................................................................................................. 29

RECORD GAIN............................................................................................................ 30

AUTOMATIC LEVEL CONTROL.................................................................................. 31

AUDIO DACS .......................................................................................................35

STEREO DAC.............................................................................................................. 35

VOICE DAC ................................................................................................................. 37

AUXILIARY DAC.......................................................................................................... 38

VARIABLE RATE AUDIO / SAMPLE RATE CONVERSION ...............................40

AUDIO INPUTS ....................................................................................................41

LINE INPUT ................................................................................................................. 41

MICROPHONE INPUT................................................................................................. 41

MONOIN INPUT........................................................................................................... 46

PCBEEP INPUT ........................................................................................................... 46

DIFFERENTIAL MONO INPUT .................................................................................... 47

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