WM8946ECSSLASHR datasheet(3/175 Pages) WOLFSON

3 / 175 page

Production Data

WM8946

PD, July 2012, Rev 4.3

DIGITAL-TO-ANALOGUE CONVERTER (DAC)............................................................ 47

DAC DIGITAL VOLUME CONTROL..........................................................................................................47

DAC AUTO-MUTE.....................................................................................................................................50

DAC SLOPING STOPBAND FILTER ........................................................................................................50

DIGITAL BEEP GENERATOR ....................................................................................... 51

OUTPUT SIGNAL PATH................................................................................................ 52

OUTPUT SIGNAL PATHS ENABLE..........................................................................................................53

LINE OUTPUT MIXER CONTROL ............................................................................................................54

SPEAKER PGA MIXER CONTROL ..........................................................................................................56

SPEAKER PGA VOLUME CONTROL.......................................................................................................59

SPEAKER OUTPUT CONTROL................................................................................................................61

ANALOGUE OUTPUTS ................................................................................................. 62

LINE OUTPUTS.........................................................................................................................................62

SPEAKER OUTPUTS................................................................................................................................62

EXTERNAL COMPONENTS FOR LINE OUTPUT ....................................................................................62

LDO REGULATOR......................................................................................................... 63

REFERENCE VOLTAGES AND MASTER BIAS ........................................................... 66

POP SUPPRESSION CONTROL .................................................................................. 68

DISABLED OUTPUT CONTROL...............................................................................................................68

OUTPUT DISCHARGE CONTROL ...........................................................................................................69

DIGITAL AUDIO INTERFACE........................................................................................ 69

MASTER AND SLAVE MODE OPERATION.............................................................................................69

AUDIO DATA FORMATS ..........................................................................................................................70

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

LOOPBACK ...............................................................................................................................................76

DIGITAL PULL-UP AND PULL-DOWN......................................................................................................77

CLOCKING AND SAMPLE RATES................................................................................ 77

DIGITAL MIC CLOCKING .........................................................................................................................80

FREQUENCY LOCKED LOOP (FLL) ........................................................................................................80

EXAMPLE FLL CALCULATION.................................................................................................................84

EXAMPLE FLL SETTINGS........................................................................................................................85

VIDEO BUFFER............................................................................................................. 86

RECOMMENDED VIDEO BUFFER INITIALISATION SEQUENCE ..........................................................88

GENERAL PURPOSE INPUT/OUTPUT ........................................................................ 90

GPIO FUNCTION SELECT .......................................................................................................................93

INTERRUPTS ................................................................................................................ 94

CONTROL INTERFACE................................................................................................. 96

SELECTION OF CONTROL INTERFACE MODE.....................................................................................96

2-WIRE (I2C) CONTROL MODE ...............................................................................................................97

3-WIRE (SPI) CONTROL MODE...............................................................................................................99

4-WIRE (SPI) CONTROL MODE.............................................................................................................100

WM8946ECS/R 데이터시트(PDF) 3 Page - Wolfson Microelectronics plc

WM8946ECS/R 데이터시트(HTML) 3 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

데이터시트 다운로드

링크 URL