WM8351CGEB/RV WOLFSON [Wolfson Microelectronics plc], WM8351CGEB/RV Datasheet - Page 5

• Manufacturer Part Number: WM8351CGEB/RV
• Manufacturer: WOLFSON [Wolfson Microelectronics plc]

Production Data
13
w
12.1
12.2
12.3
12.4
13.1
13.2
13.3
13.4
13.5
13.6
13.7
13.8
13.9
13.10 DIGITAL AUDIO INTERFACE .......................................................................... 91
13.11 COMPANDING ................................................................................................. 97
13.12 ADDITIONAL CODEC FUNCTIONS ................................................................ 99
12.1.1
12.1.2
12.1.3
12.3.1
12.3.2
12.3.3
12.3.4
12.3.5
12.3.6
12.4.1
12.4.2
AUDIO CODEC SUBSYSTEM .................................................................... 60
13.4.1
13.4.2
13.4.3
13.4.4
13.4.5
13.4.6
13.4.7
13.5.1
13.5.2
13.6.1
13.7.1
13.7.2
13.7.3
13.7.4
13.7.5
13.8.1
13.8.2
13.9.1
13.9.2
13.9.3
13.9.4
13.10.1
13.10.2
13.10.3
13.10.4
13.12.1
GENERAL DESCRIPTION ............................................................................... 45
CRYSTAL OSCILLATOR ................................................................................. 46
CLOCKING AND SAMPLE RATES .................................................................. 47
FLL ................................................................................................................... 55
GENERAL DESCRIPTION ............................................................................... 60
AUDIO PATHS ................................................................................................. 61
ENABLING THE AUDIO CODEC ..................................................................... 62
INPUT SIGNAL PATH ...................................................................................... 64
ANALOGUE TO DIGITAL CONVERTER (ADC) .............................................. 71
DIGITAL MIXING .............................................................................................. 74
DIGITAL TO ANALOGUE CONVERTER (DAC) .............................................. 75
OUTPUT SIGNAL PATH .................................................................................. 79
ANALOGUE OUTPUTS .................................................................................... 83
CLOCKING THE AUDIO CODEC ........................................................................................ 46
CLOCKING THE DC-DC CONVERTERS ............................................................................ 46
INTERNAL RC OSCILLATOR .............................................................................................. 46
SYSCLK CONTROL ............................................................................................................. 49
ADC / DAC SAMPLE RATES ............................................................................................... 50
BCLK CONTROL ................................................................................................................. 52
ADCLRCLK / DACLRCLK CONTROL .................................................................................. 54
OPCLK CONTROL ............................................................................................................... 55
SLOWCLK CONTROL ......................................................................................................... 55
EXAMPLE FLL CALCULATION ........................................................................................... 58
EXAMPLE FLL SETTINGS .................................................................................................. 59
MICROPHONE INPUTS ...................................................................................................... 64
ENABLING THE PRE-AMPLIFIERS .................................................................................... 65
SELECTING INPUT SIGNALS ............................................................................................. 65
CONTROLLING THE PRE-AMPLIFIER GAINS ................................................................... 66
MICROPHONE BIASING ..................................................................................................... 67
AUXILIARY INPUTS (IN3L AND IN3R) ................................................................................ 68
INPUT MIXERS .................................................................................................................... 69
ADC VOLUME CONTROL ................................................................................................... 73
ADC HIGH-PASS FILTER .................................................................................................... 73
DIGITAL SIDETONE ............................................................................................................ 74
DAC PLAYBACK VOLUME CONTROL ............................................................................... 76
DAC SOFT MUTE AND SOFT UN-MUTE ........................................................................... 76
DAC DE-EMPHASIS ............................................................................................................ 77
DAC OUTPUT PHASE AND MONO MIXING ...................................................................... 78
DAC STOPBAND ATTENUATION ....................................................................................... 78
ENABLING THE ANALOGUE OUTPUTS ............................................................................ 79
OUTPUT MIXERS ................................................................................................................ 80
OUT1L AND OUT1R ............................................................................................................ 83
OUT2L AND OUT2R ............................................................................................................ 85
HEADPHONE OUTPUTS EXTERNAL CONNECTIONS ..................................................... 87
OUT3 AND OUT4 ................................................................................................................. 89
AUDIO DATA FORMATS ..................................................................................................... 91
AUDIO INTERFACE TDM MODE ........................................................................................ 94
TDM DATA FORMATS ........................................................................................................ 94
LOOPBACK.......................................................................................................................... 97
HEADPHONE JACK DETECT ............................................................................................. 99
PD, April 2012, Rev 4.5
WM8351
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