WM8253
Production Data
TABLE OF CONTENTS
DESCRIPTION....................................................................................................... 1
FEATURES............................................................................................................ 1
APPLICATIONS..................................................................................................... 1
BLOCK DIAGRAM ................................................................................................ 1
PIN CONFIGURATION.......................................................................................... 3
ORDERING INFORMATION.................................................................................. 3
PIN DESCRIPTION................................................................................................ 4
ABSOLUTE MAXIMUM RATINGS........................................................................ 5
RECOMMENDED OPERATING CONDITIONS..................................................... 5
ELECTRICAL CHARACTERISTICS ..................................................................... 6
INPUT VIDEO SAMPLING .............................................................................................. 8
OUTPUT DATA TIMING.................................................................................................. 8
SERIAL INTERFACE....................................................................................................... 9
DEVICE DESCRIPTION ...................................................................................... 10
INTRODUCTION ........................................................................................................... 10
INPUT SAMPLING ........................................................................................................ 10
RESET LEVEL CLAMPING (RLC) ................................................................................ 10
CDS/NON-CDS PROCESSING..................................................................................... 12
OFFSET ADJUST AND PROGRAMMABLE GAIN........................................................ 12
ADC INPUT BLACK LEVEL ADJUST............................................................................ 13
OVERALL SIGNAL FLOW SUMMARY ......................................................................... 13
CALCULATING OUTPUT FOR ANY GIVEN INPUT..................................................... 14
OUTPUT DATA FORMAT ............................................................................................. 15
CONTROL INTERFACE................................................................................................ 16
TIMING REQUIREMENTS ............................................................................................ 16
PROGRAMMABLE VSMP DETECT CIRCUIT.............................................................. 17
REFERENCES .............................................................................................................. 18
POWER SUPPLY.......................................................................................................... 18
POWER MANAGEMENT............................................................................................... 18
OPERATING MODES ................................................................................................... 18
OPERATING MODE TIMING DIAGRAMS .................................................................... 19
DEVICE CONFIGURATION................................................................................. 21
REGISTER MAP............................................................................................................ 21
REGISTER MAP DESCRIPTION .................................................................................. 22
RECOMMENDED EXTERNAL COMPONENTS.................................................. 24
PACKAGE DIMENSIONS.................................................................................... 25
IMPORTANT NOTICE ......................................................................................... 26
ADDRESS: .................................................................................................................... 26
REVISION HISTORY ........................................................................................... 27
PD, Rev 4.1, August 2011
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
