參數(shù)資料
型號： TW2802
廠商： Electronic Theatre Controls, Inc.
英文描述： TW2802/4 Multiple Video Decoder For Security Applications
中文描述： TW2802 / 4多路視頻解碼器的安全應用
文件頁數(shù)： 2/80頁
文件大?。?/td> 946K
代理商： TW2802
Techwell, Inc.
www.techwellinc.com
Datasheet Rev. 2.4
09/09/2003
Preliminary
TW2804/TW2802 Multiple Video Decoder
Table of Contents
Introduction and Features ______________3
Features___________________________3
Applications _______________________3
Block Diagram _____________________4
Pin Diagram _______________________5
Pin Description_____________________5
Analog Interface Pins_______________5
Digital Data Interface Pins___________6
System Control Pins________________7
Power/Ground Pins_________________7
Functional Description_________________8
Video Input Formats ________________8
Analog-to-Digital Converter __________8
Sync Processing ____________________9
Video Level Adjustment ____________9
Horizontal Sync Processing __________9
Vertical Sync Processing ____________9
Color Decoding____________________10
Decimation Filter _________________10
Y/C Separation___________________11
Luminance Processing ______________12
Chrominance Processing ____________13
Chrominance Demodulation_________13
ACC (Automatic Color gain control)__14
Chrominance Gain, Offset and Hue
Adjustment______________________14
Video Scaling and Cropping _________15
Video Scaling____________________15
Video Cropping __________________18
Motion Detector ___________________20
Sensitivity Control ________________20
LVLSENS (Level Sensitivity)
________20
SPTSENS (Spatial Sensitivity)
_______20
TMPSENS (Temporal Sensitivity)
____ 20
Velocity Control _________________ 21
Mask Detection Region____________ 22
Output Format ___________________ 23
ITU-R BT.656 Format ____________ 23
8-bit ITU-R BT.601 Format ________ 24
Dual ITU-R BT.656 Format in 54MHz 25
Host Interface ______________________ 26
Serial Interface ___________________ 26
Parallel Interface _________________ 27
Interrupt Interface ________________ 28
Control Register __________________ 29
Register Map____________________ 29
Recommended Value _____________ 31
Register Description ______________ 33
Parametric Information_______________ 71
DC Electrical Parameters___________ 71
AC Electrical Parameters___________ 73
Package Dimension __________________ 75
Application Information ______________ 77
Video Input Interface ______________ 77
Clamping / AGC __________________ 77
Video Output Interface ____________ 77
Power-Up________________________ 77
Application Schematic________________ 78
Revision History_____________________ 79
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