Holtek HT82V863R CCD监控摄影机处理方案
发布时间：2011-10-14 17:34
发布者：1640190015
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Holtek(盛群半导体)公司的HT82V863R是新一代的 CCD监控摄影机处理器, 采用更精简的 64LQFP封装, 新的影像处理器在低照,色彩及噪声等各项影像处理上，其性能都比 HT82V862R 优秀,提供数字式高动态处理,自动背光补偿及数字式线锁定同步等功能.本文介绍了HT82V863R主要特性,方框图以及系统应用框图. The HT82V863R is a single chip digital image processor for Ye, Cy, Mg and G colour CCD video camera systems. It receives CFA patterns from colour CCDs and generates NTSC/PAL CVBS signals using internal video encoders and the 10-bit DAC. In addition, it also provides an AE/AWB algorithm, timing generation module together with other circuitry. The device contains a microcontroller in which an OTP ROM is integrated internally to implement the basic camera functions such as the AE/AWB algorithm. The video camera system consists of a CDS/AGC/ADC IC (HT82V842A), DSP IC (HT82V863R), Vertical Driver IC (HT82V805) and CCD sensors. It also provides a proprietary function to eliminate so called “line crawl” and automatic CCD defect compensation function to correct up to 30 bad pixels and 4 consequential bad pixels. HT82V863R主要特性: • Input: Supports Ye, Mg, Cy, G colour filters for NTSC/PAL, 270K/320K/410K/470K CCD sensors • Output: NTSC/PAL Analog CVBS • Automatic CCD Defect compensation Up to 50 bad pixels and 4 consequential bad pixels correction • Automatic Back Light compensation • Programmable False Colour suppression • Programmable High Light suppression • Programmable Sharpness enhancement • Programmable Colour Saturation and Hue function • Programmable Contrast and Brightness function • Programmable GAMMA curve • Integrate a 96-step CCD timing generator • Support AE/AWB algorithm function • Support OSD function • Integrate a 2-D DNR function • Integrate the digital WDR • Integrate the digital Line Lock function to reduce colour rolling • Integrate a NTSC/PAL video encoder • Integrate a 10-bit DAC • Support CCIR656 digital out • Integrate a one-channel 6-bit ADC • Integrate OTP ROM with ISP function for multiple programming codes • Support Mirror function • Support a master I2C interface for external EEPROM to store parameters • Support a slave I2C interface for communication with an external host • Embedded LVR and POR circuits • Embedded 3.3V-to-1.8V regulator • Single 3.3V power supply • 64/80-LQFP package 
图1. HT82V863R方框图 
图2. HT82V863R系统应用框图 详情请见: http://www.holtek.com.tw/pdf/video/ht82v863rv100.pdf |
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