WM8976CGEFLSLASHV datasheet(2/114 Pages) WOLFSON

2 / 114 page

WM8976

Production Data

PD, Rev 4.5, November 2011

TABLE OF CONTENTS

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

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

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

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

ABSOLUTE MAXIMUM RATINGS ........................................................................ 6

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

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

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

SPEAKER OUTPUT THD VERSUS POWER...................................................... 10

POWER CONSUMPTION.................................................................................... 11

AUDIO PATHS OVERVIEW ................................................................................ 13

SIGNAL TIMING REQUIREMENTS .................................................................... 14

SYSTEM CLOCK TIMING ............................................................................................. 14

AUDIO INTERFACE TIMING – MASTER MODE.......................................................... 14

AUDIO INTERFACE TIMING – SLAVE MODE ............................................................. 15

CONTROL INTERFACE TIMING – 3-WIRE MODE ...................................................... 16

CONTROL INTERFACE TIMING – 2-WIRE MODE ...................................................... 17

INTERNAL POWER ON RESET CIRCUIT .......................................................... 18

DEVICE DESCRIPTION ...................................................................................... 20

INTRODUCTION ........................................................................................................... 20

INPUT SIGNAL PATH ................................................................................................... 22

ANALOGUE TO DIGITAL CONVERTER (ADC) ........................................................... 28

INPUT LIMITER / AUTOMATIC LEVEL CONTROL (ALC)............................................ 32

OUTPUT SIGNAL PATH ............................................................................................... 44

3D STEREO ENHANCEMENT...................................................................................... 51

ANALOGUE OUTPUTS................................................................................................. 51

DIGITAL AUDIO INTERFACES..................................................................................... 66

AUDIO SAMPLE RATES............................................................................................... 71

MASTER CLOCK AND PHASE LOCKED LOOP (PLL) ................................................ 71

COMPANDING .............................................................................................................. 73

GENERAL PURPOSE INPUT/OUTPUT........................................................................ 75

OUTPUT SWITCHING (JACK DETECT)....................................................................... 76

CONTROL INTERFACE................................................................................................ 77

RESETTING THE CHIP ................................................................................................ 78

POWER SUPPLIES....................................................................................................... 79

RECOMMENDED POWER UP/DOWN SEQUENCE.................................................... 80

POWER MANAGEMENT .............................................................................................. 84

DIGITAL FILTER CHARACTERISTICS ............................................................ 103

TERMINOLOGY .......................................................................................................... 103

DAC FILTER RESPONSES ........................................................................................ 104

ADC FILTER RESPONSES ........................................................................................ 104

HIGHPASS FILTER..................................................................................................... 105

5-BAND EQUALISER .................................................................................................. 106

WM8976CGEFL/V 数据表(PDF) 2 Page - Wolfson Microelectronics plc

WM8976CGEFL/V 数据表(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 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载