WM8962B Datasheet, PDF (4/295 Pages) Wolfson Microelectronics plc – Ultra-Low Power Stereo CODEC with Audio Enhancement DSP, 1W Stereo Class D Speaker Drivers and Ground Referenced Headphone Drivers

WM8962
ADC DIGITAL VOLUME CONTROL..........................................................................................................67
ADC OVERSAMPLING RATIO (OSR)....................................................................................................... 69
ADC MONOMIX.........................................................................................................................................69
DSP SIGNAL ENHANCEMENTS ................................................................................. 70
ENABLE SEQUENCE - ENHANCEMENTS INITIALLY DISABLED .......................................................... 70
ENABLE / DISABLE SEQUENCE - ENHANCEMENTS INITIALLY ENABLED ......................................... 71
DISABLE ALL SOUND ENHANCEMENTS SEQUENCE .......................................................................... 72
UPDATE / READBACK SEQUENCE - ENHANCEMENTS INITIALLY ENABLED .................................... 73
UPDATE / READBACK SEQUENCE - ENHANCEMENTS INITIALLY DISABLED ................................... 74
ADC SIGNAL PATH ENHANCEMENTS....................................................................... 75
ADC SECOND ORDER HIGH-PASS FILTER ........................................................................................... 75
LOW-PASS / HIGH-PASS FILTER (LPF/HPF)..........................................................................................77
3D SURROUND ........................................................................................................................................ 78
DF1 FILTER...............................................................................................................................................81
ADC RETUNE ........................................................................................................................................... 83
DYNAMIC RANGE CONTROL (DRC) ....................................................................................................... 84
DIGITAL MIXING.......................................................................................................... 92
DIGITAL MIXING PATHS .......................................................................................................................... 92
DIGITAL SIDETONE.................................................................................................................................. 93
T-LOOPBACK ............................................................................................................................................ 95
DAC SIGNAL PATH ENHANCEMENTS....................................................................... 97
5-BAND EQ ............................................................................................................................................... 97
DYNAMIC RANGE CONTROL (DRC) ..................................................................................................... 101
DAC SECOND ORDER HIGH-PASS FILTER ......................................................................................... 102
VIRTUAL SURROUND SOUND (VSS).................................................................................................... 103
HD BASS ................................................................................................................................................. 104
DAC RETUNE ......................................................................................................................................... 105
DIGITAL-TO-ANALOGUE CONVERTER (DAC) ........................................................ 106
DAC CLOCKING CONTROL ................................................................................................................... 107
DAC DIGITAL VOLUME CONTROL........................................................................................................107
DAC SOFT MUTE AND UN-MUTE.......................................................................................................... 109
DAC AUTO-MUTE ................................................................................................................................... 111
DAC MONO MIX......................................................................................................................................111
DAC DE-EMPHASIS................................................................................................................................ 112
DAC OVERSAMPLING RATIO (OSR)..................................................................................................... 112
DIGITAL BEEP GENERATOR ................................................................................... 113
OUTPUT SIGNAL PATH ............................................................................................ 114
OUTPUT SIGNAL PATHS ENABLE ........................................................................................................ 115
SPEAKER OUTPUT PATHS ...................................................................................... 116
SPEAKER MIXER CONTROL ................................................................................................................. 116
SPEAKER OUTPUT PGA CONTROL ..................................................................................................... 119
SPEAKER OUTPUT CONFIGURATIONS...............................................................................................121
HEADPHONE OUTPUT PATHS ................................................................................ 124
HEADPHONE SIGNAL PATHS ENABLE ................................................................................................ 124
HEADPHONE MIXER CONTROL ........................................................................................................... 126
HEADPHONE OUTPUT PGA CONTROL ............................................................................................... 129
HEADPHONE OUTPUT CONFIGURATIONS ......................................................................................... 130
CHARGE PUMP......................................................................................................... 131
DC SERVO ................................................................................................................ 133
DC SERVO ENABLE AND START-UP....................................................................................................133
DC SERVO ACTIVE MODES .................................................................................................................. 135
REFERENCE VOLTAGES AND BIAS CONTROL...................................................... 136
ANALOGUE REFERENCE AND MASTER BIAS .................................................................................... 136
INPUT SIGNAL PATH BIAS CONTROL SETTINGS ............................................................................... 136
OUTPUT SIGNAL PATH BIAS CONTROL SETTINGS ........................................................................... 137
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Rev 4.3