WM8903LGEFK/RV Wolfson Microelectronics, WM8903LGEFK/RV Datasheet - Page 5

• Manufacturer Part Number: WM8903LGEFK/RV
• Description: Audio CODECs ULTRA LOW PWR HI FI CODEC
• Manufacturer: Wolfson Microelectronics

Specifications of WM8903LGEFK/RV

• Audio Codec Type: Stereo Codec
• No. Of Adcs: 2
• No. Of Dacs: 2
• No. Of Input Channels: 6
• No. Of Output Channels: 8
• Adc / Dac Resolution: 24bit
• Sampling Rate: 96kHz
• Operating Temperature Range: -40°C To +85°C
• Rohs Compliant: Yes
• Adcs / Dacs Signal To Noise Ratio: 96dB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Production Data
REGISTER MAP ................................................................................................. 130
APPLICATIONS INFORMATION ....................................................................... 172
PACKAGE DIMENSIONS .................................................................................. 176
IMPORTANT NOTICE ........................................................................................ 177
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CLOCKING AND SAMPLE RATES .............................................................................. 95
FREQUENCY LOCKED LOOP (FLL) ......................................................................... 101
GENERAL PURPOSE INPUT/OUTPUT (GPIO) ........................................................ 107
INTERRUPTS ............................................................................................................ 112
CONTROL INTERFACE ............................................................................................ 115
CONTROL WRITE SEQUENCER .............................................................................. 118
POWER-ON RESET .................................................................................................. 126
QUICK START-UP AND SHUTDOWN ...................................................................... 128
SOFTWARE RESET AND CHIP ID ........................................................................... 129
REGISTER BITS BY ADDRESS ................................................................................ 133
RECOMMENDED EXTERNAL COMPONENTS ......................................................... 172
MIC DETECTION SEQUENCE USING MICBIAS CURRENT .................................... 174
ADDRESS .................................................................................................................. 177
LOOPBACK ................................................................................................................................................................. 94
CLK_SYS CONTROL .................................................................................................................................................. 97
CONTROL INTERFACE CLOCKING ........................................................................................................................... 98
AUTOMATIC CLOCKING CONFIGURATION .............................................................................................................. 98
USB CLOCKING MODE ............................................................................................................................................ 100
ADC / DAC OPERATION AT 88.2K / 96K .................................................................................................................. 100
DIGITAL MICROPHONE (DMIC) OPERATION ......................................................................................................... 101
FREE-RUNNING FLL CLOCK ................................................................................................................................... 105
GPIO OUTPUTS FROM FLL ..................................................................................................................................... 105
EXAMPLE FLL CALCULATION ................................................................................................................................. 105
EXAMPLE FLL SETTINGS ........................................................................................................................................ 106
INITIATING A SEQUENCE ........................................................................................................................................ 118
PROGRAMMING A SEQUENCE ............................................................................................................................... 119
DEFAULT SEQUENCES ........................................................................................................................................... 121
START-UP SEQUENCE ............................................................................................................................................ 122
SHUTDOWN SEQUENCE ......................................................................................................................................... 124
QUICK START-UP (DEFAULT SEQUENCE) ............................................................................................................ 128
QUICK SHUTDOWN (DEFAULT SEQUENCE) ......................................................................................................... 128
PD, Rev 4.0, September 2010
WM8903
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