Holtek HT82V863R CCD监控摄影机处理方案

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