WM8740 Wolfson Microelectronics plc, WM8740 Datasheet - Page 2

• Manufacturer Part Number: WM8740
• Description: 24-bit, High Performance 192khz Stereo Dac
• Manufacturer: Wolfson Microelectronics plc

WM8740
DESCRIPTION ....................................................................................................... 1
FEATURES............................................................................................................. 1
APPLICATIONS ..................................................................................................... 1
BLOCK DIAGRAM ................................................................................................. 1
TABLE OF CONTENTS ......................................................................................... 2
PIN CONFIGURATION ........................................................................................... 3
ORDERING INFORMATION .................................................................................. 3
PIN DESCRIPTION ................................................................................................ 4
ABSOLUTE MAXIMUM RATINGS ......................................................................... 5
RECOMMENDED OPERATING CONDITIONS ..................................................... 6
ELECTRICAL CHARACTERISTICS ...................................................................... 6
INTERNAL POWER ON RESET CIRCUIT ............................................................ 9
DEVICE DESCRIPTION ....................................................................................... 12
APPLICATIONS INFORMATION ......................................................................... 24
PACKAGE DIMENSIONS .................................................................................... 26
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SYSTEM CLOCK ........................................................................................................ 12
AUDIO DATA INTERFACE ......................................................................................... 12
NORMAL SAMPLE RATE ........................................................................................... 13
8 X FS INPUT SAMPLE RATE .................................................................................... 14
MODES OF OPERATION ........................................................................................... 14
HARDWARE CONTROL MODES ............................................................................... 14
SOFTWARE CONTROL INTERFACE ......................................................................... 15
REGISTER MAP ......................................................................................................... 16
MUTE MODES ............................................................................................................ 20
FILTER RESPONSES ................................................................................................. 21
RECOMMENDED EXTERNAL COMPONENTS .......................................................... 24
RECOMMENDED EXTERNAL COMPONENTS VALUES ........................................... 24
SUGGESTED DIFFERENTIAL OUTPUT FILTER CIRCUIT ........................................ 25
RECOMMENDED DUAL DIFFERENTIAL HARDWARE SETUP ................................. 25
ADDRESS: .................................................................................................................. 27
TABLE OF CONTENTS
PD, Rev 4.3, August 2009
Production Data
2