WM8224
Production Data
TABLE OF CONTENTS
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 OPERATING CONDITIONS..................................................... 6
THERMAL PERFORMANCE................................................................................. 6
ELECTRICAL CHARACTERISTICS ..................................................................... 7
40MHZ OPERATION....................................................................................................... 7
60MHZ OPERATION....................................................................................................... 7
GENERAL CHARACTERISTICS..................................................................................... 9
INPUT VIDEO SAMPLING ............................................................................................ 11
CDS MODE (CDS=1) .................................................................................................... 11
NON-CDS MODE (CDS=0) ........................................................................................... 12
OUTPUT DATA TIMING................................................................................................ 14
SERIAL INTERFACE..................................................................................................... 15
INTERNAL POWER ON RESET CIRCUIT.......................................................... 16
DEVICE DESCRIPTION ...................................................................................... 18
INTRODUCTION ........................................................................................................... 18
CONFIGURABLE RESOLUTION OF ADC.................................................................... 18
INPUT SAMPLING ........................................................................................................ 18
RESET LEVEL CLAMPING (RLC) ................................................................................ 19
CDS/NON-CDS PROCESSING..................................................................................... 21
OFFSET ADJUST AND PROGRAMMABLE GAIN........................................................ 21
ADC INPUT BLACK LEVEL ADJUST ........................................................................... 22
OVERALL SIGNAL FLOW SUMMARY ......................................................................... 23
CALCULATING THE OUTPUT CODE FOR A GIVEN INPUT ...................................... 24
OUTPUT FORMATS ..................................................................................................... 25
PROGRAMMABLE AUTOMATIC BLACK LEVEL CALIBRATION................................ 26
INDICATING THE START OF A BLC PROCEDURE.................................................... 27
BLC DURATION CONTROL ......................................................................................... 28
BLC WORKED EXAMPLE:............................................................................................ 29
BLC SCENARIOS OF OPERATION.............................................................................. 31
REFERENCES .............................................................................................................. 35
POWER MANAGEMENT .............................................................................................. 35
CONTROL INTERFACE................................................................................................ 35
MULTIPLE DEVICE OPERATION................................................................................. 36
OPERATING MODES ................................................................................................... 39
16-BIT MODE ................................................................................................................ 39
10-BIT MODE ................................................................................................................ 40
DEVICE CONFIGURATION................................................................................. 41
REGISTER MAP............................................................................................................ 41
REGISTER MAP DESCRIPTION.................................................................................. 42
APPLICATIONS INFORMATION ........................................................................ 47
RECOMMENDED EXTERNAL COMPONENTS ........................................................... 47
RECOMMENDED EXTERNAL COMPONENT VALUES .............................................. 47
PACKAGE DIMENSIONS.................................................................................... 48
PD, Rev 4.1, June 2012
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
