WM8734SEFL Wolfson Microelectronics, WM8734SEFL Datasheet - Page 2

• Manufacturer Part Number: WM8734SEFL
• Description: Audio CODECs Stereo CODEC
• Manufacturer: Wolfson Microelectronics

Specifications of WM8734SEFL

• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-28
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8734
DESCRIPTION .......................................................................................................1
FEATURES.............................................................................................................1
APPLICATIONS .....................................................................................................1
BLOCK DIAGRAM .................................................................................................1
TABLE OF CONTENTS .........................................................................................2
PIN CONFIGURATION – SSOP.............................................................................3
ORDERING INFORMATION - SSOP .....................................................................3
PIN DESCRIPTION - SSOP ...................................................................................4
PIN CONFIGURATION – QFN ...............................................................................5
ORDERING INFORMATION - QFN........................................................................5
PIN DESCRIPTION - QFN......................................................................................6
ABSOLUTE MAXIMUM RATINGS.........................................................................7
RECOMMENDED OPERATING CONDITIONS .....................................................7
ELECTRICAL CHARACTERISTICS ......................................................................8
POWER CONSUMPTION (EXAMPLES) .............................................................10
MASTER CLOCK TIMING....................................................................................11
DEVICE DESCRIPTION.......................................................................................16
DIGITAL FILTER CHARACTERISTICS ...............................................................38
DIGITAL DE-EMPHASIS CHARACTERISTICS ...................................................40
APPLICATIONS INFORMATION .........................................................................42
PACKAGE DIMENSIONS (SSOP) .......................................................................44
PACKAGE DIMENSIONS (QFN) .........................................................................45
IMPORTANT NOTICE ..........................................................................................46
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TERMINOLOGY ............................................................................................................ 9
DIGITAL AUDIO INTERFACE – MASTER MODE ....................................................... 11
DIGITAL AUDIO INTERFACE – SLAVE MODE .......................................................... 12
MPU INTERFACE TIMING .......................................................................................... 14
AUDIO SIGNAL PATH................................................................................................. 16
DEVICE OPERATION ................................................................................................. 22
AUDIO DATA SAMPLING RATES............................................................................... 27
ACTIVATING DSP AND DIGITAL AUDIO INTERFACE .............................................. 32
SOFTWARE CONTROL INTERFACE......................................................................... 32
POWER DOWN MODES ............................................................................................ 34
REGISTER MAP ......................................................................................................... 36
TERMINOLOGY .......................................................................................................... 39
DAC FILTER RESPONSES......................................................................................... 39
ADC FILTER RESPONSES......................................................................................... 39
ADC HIGH PASS FILTER ........................................................................................... 40
RECOMMENDED EXTERNAL COMPONENTS .......................................................... 42
MINIMISING POP NOISE AT THE ANALOGUE OUTPUTS........................................ 43
ADDRESS: .................................................................................................................. 46
TABLE OF CONTENTS
PD, Rev 4.3, January 2009
Production Data
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