WM9712CLGEFLSLASHV datasheet(2/78 Pages) WOLFSON

2 / 78 page

WM9712L

Production Data

PD, Rev 4.6, November 2011

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

RECOMMENDED OPERATING CONDITIONS..................................................... 6

ELECTRICAL CHARACTERISTICS ..................................................................... 7

AUDIO OUTPUTS............................................................................................................ 7

AUDIO INPUTS................................................................................................................ 8

AUXILIARY MONO DAC (AUXDAC)................................................................................ 8

TOUCHPANEL AND AUXILIARY ADC ............................................................................ 9

COMPARATORS ............................................................................................................. 9

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

DIGITAL INTERFACE CHARACTERISTICS ................................................................. 10

HEADPHONE / SPEAKER OUTPUT THD VERSUS POWER ...................................... 11

POWER CONSUMPTION .............................................................................................. 12

DEVICE DESCRIPTION ...................................................................................... 13

INTRODUCTION............................................................................................................ 13

AUDIO PATHS OVERVIEW........................................................................................... 14

AUDIO INPUTS.................................................................................................... 15

LINE INPUT.................................................................................................................... 15

MICROPHONE INPUT ................................................................................................... 15

PHONE INPUT............................................................................................................... 17

PCBEEP INPUT ............................................................................................................. 18

AUDIO ADC ......................................................................................................... 19

RECORD SELECTOR.................................................................................................... 20

RECORD GAIN .............................................................................................................. 21

AUTOMATIC LEVEL CONTROL.................................................................................... 22

AUDIO DACS ...................................................................................................... 25

STEREO DAC ................................................................................................................ 25

AUXILIARY DAC ............................................................................................................ 28

ANALOGUE AUDIO OUTPUTS .......................................................................... 29

HEADPHONE OUTPUTS – HPOUTL AND HPOUTR ................................................... 29

EAR SPEAKER OUTPUT – OUT3................................................................................. 30

LOUDSPEAKER OUTPUTS – LOUT2 AND ROUT2 ..................................................... 31

PHONE OUTPUT (MONOOUT)..................................................................................... 32

THERMAL SENSOR ...................................................................................................... 32

JACK INSERTION AND AUTO-SWITCHING ................................................................ 33

DIGITAL AUDIO (SPDIF) OUTPUT ............................................................................... 34

AUDIO MIXERS ............................................................................................................. 35

VARIABLE RATE AUDIO / SAMPLE RATE CONVERSION .............................. 37

TOUCHPANEL INTERFACE ............................................................................... 38

PRINCIPLE OF OPERATION - FOUR-WIRE TOUCHPANEL ....................................... 38

PRINCIPLE OF OPERATION - FIVE-WIRE TOUCHPANEL ......................................... 40

WM9712CLGEFL/V Datasheet(PDF) 2 Page - Wolfson Microelectronics plc

WM9712CLGEFL/V Datasheet(HTML) 2 Page - Wolfson Microelectronics plc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78

Datasheet Download

Link URL