WM8903LGEFK/RV Wolfson Microelectronics, WM8903LGEFK/RV Datasheet - Page 3

• 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
DESCRIPTION ....................................................................................................... 1
FEATURES............................................................................................................. 1
APPLICATIONS ..................................................................................................... 1
BLOCK DIAGRAM ................................................................................................. 2
TABLE OF CONTENTS ......................................................................................... 3
PIN CONFIGURATION ........................................................................................... 6
ORDERING INFORMATION .................................................................................. 6
PIN DESCRIPTION ................................................................................................ 7
ABSOLUTE MAXIMUM RATINGS ......................................................................... 8
RECOMMENDED OPERATING CONDITIONS ..................................................... 8
ELECTRICAL CHARACTERISTICS ...................................................................... 9
POWER CONSUMPTION .................................................................................... 17
SIGNAL TIMING REQUIREMENTS ..................................................................... 19
DIGITAL FILTER CHARACTERISTICS ............................................................... 24
DEVICE DESCRIPTION ....................................................................................... 29
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TERMINOLOGY ............................................................................................................. 9
COMMON TEST CONDITIONS ..................................................................................... 9
INPUT SIGNAL PATH .................................................................................................. 10
OUTPUT SIGNAL PATH .............................................................................................. 12
BYPASS PATH ............................................................................................................ 14
CHARGE PUMP ........................................................................................................... 15
FLL ............................................................................................................................... 15
OTHER PARAMETERS ............................................................................................... 15
COMMON TEST CONDITIONS ................................................................................... 17
POWER CONSUMPTION MEASUREMENTS ............................................................. 17
COMMON TEST CONDITIONS ................................................................................... 19
MASTER CLOCK ......................................................................................................... 19
AUDIO INTERFACE TIMING ....................................................................................... 20
CONTROL INTERFACE TIMING ................................................................................. 23
DAC FILTER RESPONSES ......................................................................................... 25
ADC FILTER RESPONSES ......................................................................................... 26
ADC HIGH PASS FILTER RESPONSES ..................................................................... 27
DE-EMPHASIS FILTER RESPONSES ........................................................................ 28
INTRODUCTION .......................................................................................................... 29
ANALOGUE INPUT SIGNAL PATH ............................................................................. 30
ELECTRET CONDENSER MICROPHONE INTERFACE............................................. 37
MASTER MODE .......................................................................................................................................................... 20
SLAVE MODE ............................................................................................................................................................. 21
TDM MODE ................................................................................................................................................................. 22
INPUT PGA ENABLE .................................................................................................................................................. 31
INPUT PGA CONFIGURATION ................................................................................................................................... 31
SINGLE-ENDED INPUT .............................................................................................................................................. 33
DIFFERENTIAL LINE INPUT ....................................................................................................................................... 33
DIFFERENTIAL MICROPHONE INPUT ...................................................................................................................... 34
INPUT PGA GAIN CONTROL ..................................................................................................................................... 34
INPUT PGA COMMON MODE AMPLIFIER ................................................................................................................. 36
MICBIAS CURRENT DETECT .................................................................................................................................... 37
TABLE OF CONTENTS
PD, Rev 4.0, September 2010
WM8903
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