WM8973LGEFL/V Wolfson Microelectronics, WM8973LGEFL/V Datasheet - Page 2

• Manufacturer Part Number: WM8973LGEFL/V
• Description: Audio CODECs Stereo Codec with H/P Spkr
• Manufacturer: Wolfson Microelectronics

Specifications of WM8973LGEFL/V

• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8973L
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DESCRIPTION .......................................................................................................1
FEATURES.............................................................................................................1
APPLICATIONS .....................................................................................................1
BLOCK DIAGRAM .................................................................................................1
TABLE OF CONTENTS .........................................................................................2
PIN CONFIGURATION...........................................................................................4
ORDERING INFORMATION ..................................................................................4
PIN DESCRIPTION ................................................................................................5
ABSOLUTE MAXIMUM RATINGS.........................................................................6
RECOMMENDED OPERATION CONDITIONS .....................................................6
ELECTRICAL CHARACTERISTICS ......................................................................7
SIGNAL TIMING REQUIREMENTS .....................................................................12
DEVICE DESCRIPTION.......................................................................................16
REGISTER MAP...................................................................................................47
DIGITAL FILTER CHARACTERISTICS ...............................................................48
OUTPUT PGA’S LINEARITY ......................................................................................... 9
HEADPHONE OUTPUT THD VERSUS POWER......................................................... 10
POWER CONSUMPTION............................................................................................ 11
SYSTEM CLOCK TIMING............................................................................................ 12
AUDIO INTERFACE TIMING – MASTER MODE ......................................................... 12
AUDIO INTERFACE TIMING – SLAVE MODE ............................................................ 13
INTRODUCTION.......................................................................................................... 16
INPUT SIGNAL PATH.................................................................................................. 16
AUTOMATIC LEVEL CONTROL (ALC) ....................................................................... 23
3D STEREO ENHANCEMENT..................................................................................... 26
OUTPUT SIGNAL PATH.............................................................................................. 27
ANALOGUE OUTPUTS ............................................................................................... 32
ENABLING THE OUTPUTS ......................................................................................... 34
HEADPHONE SWITCH ............................................................................................... 34
THERMAL SHUTDOWN .............................................................................................. 36
HEADPHONE OUTPUT ............................................................................................... 36
DIGITAL AUDIO INTERFACE...................................................................................... 37
AUDIO INTERFACE CONTROL .................................................................................. 40
CLOCKING AND SAMPLE RATES .............................................................................. 41
CONTROL INTERFACE .............................................................................................. 43
POWER SUPPLIES ..................................................................................................... 44
POWER MANAGEMENT ............................................................................................. 45
TERMINOLOGY........................................................................................................... 48
DAC FILTER RESPONSES ......................................................................................... 49
ADC FILTER RESPONSES ......................................................................................... 50
DE-EMPHASIS FILTER RESPONSES ........................................................................ 51
HIGHPASS FILTER ..................................................................................................... 52
TABLE OF CONTENTS
Advanced Information
AI Rev 3.2 July 2004
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