Hub CODEC. WM8993 Datasheet

WM8993 CODEC. Datasheet pdf. Equivalent

WM8993 Datasheet
Recommendation WM8993 Datasheet
Part WM8993
Description Audio Hub CODEC
Feature WM8993; w WM8993 Audio Hub CODEC for Multimedia Phones DESCRIPTION FEATURES The WM8993 is a highly inte.
Manufacture Wolfson Microelectronics
Datasheet
Download WM8993 Datasheet




Wolfson Microelectronics WM8993
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WM8993
Audio Hub CODEC for Multimedia Phones
DESCRIPTION
FEATURES
The WM8993 is a highly integrated ultra-low power hi-fi CODEC
designed for portable devices such as multimedia phones.
A stereo 1W/channel speaker driver can operate in class D or
AB mode. Low leakage and high PSRR across the audio band
enable direct battery connection for the speaker supply.
Class W headphone drivers provide a dramatic reduction in
playback power and are ground-referenced. Active ground loop
noise rejection and DC offset correction help prevent pop noise
and ground noise from degrading headphone output quality.
Powerful mixing capability allows the device to support a huge
range of architectures and use cases. A highly flexible input
configuration supports multiple microphone or line inputs (mono
or stereo, single-ended or differential).
Fully differential internal architecture and on-chip RF noise
filters ensure a very high degree of noise immunity.
ReTuneTM Mobile parametric EQ with fully programmable
coefficients is integrated for optimization of speaker
characteristics. Programmable dynamic range control is also
available for maximizing loudness, protecting speakers from
clipping and preventing premature shutdown due to battery
droop.
The WM8993 is supplied in very small and thin 48-ball W-CSP
package, ideal for portable systems.
100dB SNR during DAC playback (‘A’ weighted)
Low power, low noise MIC interface
Class D or AB stereo speaker driver
- Stereo1W into 8Ω BTL speaker at <1% THD
- Mono 2W into 4Ω BTL speaker
ReTuneTM Mobile parametric equalizer
Dynamic range controller
Low power Class W headphone drivers
- Integrated charge pump and DC offset correction
- 5mW total power for DAC playback to headphones
Digital audio interface
- All standard data formats and 2-channel TDM supported
- All standard sample rates from 8kHz to 48kHz
Low power FLL
- Provides all necessary internal clocks
- 32kHz to 27MHz input frequency
- Free-running mode for class D and charge pump
4 highly flexible line outputs (single-ended or differential )
Dedicated earpiece driver
“Direct voice” and “Direct DAC” paths to outputs
- Low noise paths bypass all internal mixers
- Low power consumption
Active noise reduction
- DC offset correction removes pops and clicks
- Ground loop noise cancellation
48-ball W-CSP package (3.64x3.54x0.7mm, 0.5mm pitch)
APPLICATIONS
Multimedia phones
WOLFSON MICROELECTRONICS plc
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Production Data, November 2010, Rev 4.0
Copyright ©2010 Wolfson Microelectronics plc



Wolfson Microelectronics WM8993
WM8993
TABLE OF CONTENTS
Production Data
DESCRIPTION .......................................................................................................1
FEATURES.............................................................................................................1
APPLICATIONS .....................................................................................................1
TABLE OF CONTENTS .........................................................................................2
BLOCK DIAGRAM .................................................................................................5
PIN CONFIGURATION...........................................................................................6
ORDERING INFORMATION ..................................................................................6
PIN DESCRIPTION ................................................................................................7
ABSOLUTE MAXIMUM RATINGS.........................................................................9
RECOMMENDED OPERATING CONDITIONS .....................................................9
THERMAL PERFORMANCE ...............................................................................10
ELECTRICAL CHARACTERISTICS ....................................................................11
TERMINOLOGY........................................................................................................... 25
TYPICAL PERFORMANCE..................................................................................26
POWER CONSUMPTION............................................................................................ 26
AUDIO SIGNAL PATHS DIAGRAM .....................................................................27
SIGNAL TIMING REQUIREMENTS .....................................................................28
MASTER CLOCK ......................................................................................................... 28
AUDIO INTERFACE TIMING ....................................................................................... 29
MASTER MODE .......................................................................................................................................................... 29
SLAVE MODE ............................................................................................................................................................. 30
TDM MODE ................................................................................................................................................................. 31
CONTROL INTERFACE TIMING ................................................................................. 32
DEVICE DESCRIPTION .......................................................................................33
INTRODUCTION.......................................................................................................... 33
INPUT SIGNAL PATH.................................................................................................. 35
MICROPHONE INPUTS .............................................................................................................................................. 36
MICROPHONE BIAS CONTROL................................................................................................................................. 36
MICROPHONE CURRENT DETECT........................................................................................................................... 37
LINE AND VOICE CODEC INPUTS ............................................................................................................................ 37
INPUT PGA ENABLE .................................................................................................................................................. 38
INPUT PGA CONFIGURATION................................................................................................................................... 39
INPUT PGA VOLUME CONTROL ............................................................................................................................... 41
INPUT MIXER ENABLE............................................................................................................................................... 43
INPUT MIXER CONFIGURATION AND VOLUME CONTROL..................................................................................... 43
ANALOGUE TO DIGITAL CONVERTER (ADC) .......................................................... 46
ADC DIGITAL VOLUME CONTROL ............................................................................................................................ 46
HIGH PASS FILTER.................................................................................................................................................... 48
DIGITAL MIXING ......................................................................................................... 49
DIGITAL MIXING PATHS ............................................................................................................................................ 49
DAC INTERFACE VOLUME BOOST........................................................................................................................... 51
DIGITAL SIDETONE ................................................................................................................................................... 51
DYNAMIC RANGE CONTROL (DRC).......................................................................... 52
COMPRESSION/LIMITING CAPABILITIES................................................................................................................. 52
GAIN LIMITS ............................................................................................................................................................... 54
DYNAMIC CHARACTERISTICS.................................................................................................................................. 55
ANTI-CLIP CONTROL ................................................................................................................................................. 56
QUICK RELEASE CONTROL...................................................................................................................................... 56
GAIN SMOOTHING ..................................................................................................................................................... 57
INITIALISATION .......................................................................................................................................................... 58
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Wolfson Microelectronics WM8993
Production Data
WM8993
RETUNETM MOBILE PARAMETRIC EQUALIZER (EQ) ............................................... 59
DEFAULT MODE (5-BAND PARAMETRIC EQ) .......................................................................................................... 59
RETUNETM MOBILE MODE......................................................................................................................................... 60
EQ FILTER CHARACTERISTICS................................................................................................................................ 60
DIGITAL TO ANALOGUE CONVERTER (DAC) .......................................................... 62
DAC DIGITAL VOLUME CONTROL ............................................................................................................................ 62
DAC SOFT MUTE AND SOFT UN-MUTE ................................................................................................................... 64
DAC MONO MIX.......................................................................................................................................................... 65
DAC DE-EMPHASIS.................................................................................................................................................... 66
DAC SLOPING STOPBAND FILTER........................................................................................................................... 66
OUTPUT SIGNAL PATH.............................................................................................. 67
OUTPUT SIGNAL PATHS ENABLE ............................................................................................................................ 68
HEADPHONE SIGNAL PATHS ENABLE .................................................................................................................... 69
OUTPUT MIXER CONTROL........................................................................................................................................ 72
SPEAKER MIXER CONTROL ..................................................................................................................................... 75
OUTPUT SIGNAL PATH VOLUME CONTROL ........................................................................................................... 77
SPEAKER BOOST MIXER .......................................................................................................................................... 81
EARPIECE DRIVER MIXER ........................................................................................................................................ 82
LINE OUTPUT MIXERS............................................................................................................................................... 82
CHARGE PUMP........................................................................................................... 86
DC SERVO .................................................................................................................. 87
DC SERVO ENABLE AND START-UP........................................................................................................................ 88
DC SERVO ACTIVE MODES ...................................................................................................................................... 89
DC SERVO READBACK ............................................................................................................................................. 91
ANALOGUE OUTPUTS ............................................................................................... 92
SPEAKER OUTPUT CONFIGURATIONS ................................................................................................................... 92
HEADPHONE OUTPUT CONFIGURATIONS.............................................................................................................. 95
EARPIECE DRIVER OUTPUT CONFIGURATIONS.................................................................................................... 96
LINE OUTPUT CONFIGURATIONS ............................................................................................................................ 96
GENERAL PURPOSE INPUT/OUTPUT ...................................................................... 99
GPIO1 CONTROL ....................................................................................................................................................... 99
BUTTON DETECT..................................................................................................................................................... 100
ACCESSORY DETECTION....................................................................................................................................... 101
CLOCK OUTPUT....................................................................................................................................................... 103
FLL LOCK STATUS OUTPUT ................................................................................................................................... 105
TEMPERATURE SENSOR OUTPUT ........................................................................................................................ 105
CONTROL WRITE SEQUENCER STATUS .............................................................................................................. 107
LOGIC ‘1’ AND LOGIC ‘0’ OUTPUT .......................................................................................................................... 107
INTERRUPTS............................................................................................................................................................ 108
GPIO SUMMARY ...................................................................................................................................................... 109
DIGITAL AUDIO INTERFACE.................................................................................... 111
MASTER AND SLAVE MODE OPERATION ............................................................................................................. 111
OPERATION WITH TDM........................................................................................................................................... 112
BCLK FREQUENCY .................................................................................................................................................. 113
AUDIO DATA FORMATS (NORMAL MODE)............................................................................................................. 113
AUDIO DATA FORMATS (TDM MODE) .................................................................................................................... 115
DIGITAL AUDIO INTERFACE CONTROL ................................................................. 117
AUDIO INTERFACE OUTPUT TRI-STATE ............................................................................................................... 118
BCLK AND LRCLK CONTROL .................................................................................................................................. 118
COMPANDING .......................................................................................................................................................... 120
LOOPBACK............................................................................................................................................................... 121
DIGITAL PULL-UP AND PULL-DOWN ...................................................................................................................... 122
CLOCKING AND SAMPLE RATES............................................................................ 123
CLK_SYS CONTROL ................................................................................................................................................ 125
AUTOMATIC CLOCKING CONFIGURATION............................................................................................................ 126
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