摘要：  本文介绍了HT82V863R主要特性，方框图以及系统应用框图.

关键字：  CCD监控摄影机处理器，  封装，  数字式高动态

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