The FH8510 is an image signal processing chip for CIS (CMOS ImageSensor). It has a powerful image processing engine, CMOS image sensor interface, TV encoder, D/A converter, NTSC/PAL output, and ITU.BT65610Bit. The output is mainly applied to low-end standard-definition analog CCTV cameras, car rear-view cameras and building intercom cameras. The FH8510 can support a variety of CMOS image sensors with low power consumption, high resolution, flexible configuration, and high customization. The default configuration of the FH8510 can support OV7740, OV7725, and more CMOS image sensors can be configured via external EEPROM. The OSD of the FH8510 uses hardware image data decompression technology, and all OSD data can be placed in the EEPROM. The FH8510 provides an IRLED and IRCUT control interface that allows the user to set the on and off thresholds.
2.1, video input
Support SVGA, D1, VGA input
RGBBayer
Maximum data bit width 10-bit
Clock positive and negative edge sampling configurable
Frame valid, line valid signal polarity configurable
Highest pixel clock 54MHz
2.2, image processing (ISP)
RGBBayer data format, sensor output window coordinates are free
Automatic color to black and white
Fixed mode noise cancellation
Automatic detection and elimination of dead pixels
Sensor column fixed mode noise cancellation (external 4KB EEPROM)
Vignetting compensation (LensShadeCorrecTIon)
Lens center position configurable
Compensation coefficient table configurable
Automatic black bottom elimination
Adaptive 2D denoising
Image information statistics
Number of statistics windows, location and size configurable
The maximum number of statistical windows is 64
Provide the maximum, minimum, and mean values ​​for each window
Automatic exposure, 50Hz/60Hz flicker elimination
Automatic white balance
Edge detection based CFA interpolation
Automatic color correction for configurable color space conversion RGB2RGB
Gamma correction, gamma table configurable
Image enhancement
Degree contrast, hue and saturation adjustment
Image sharpening (5x5 filtering, strength can be matched)
Image scaling
Configurable zoom core, support for stepless scaling, matching the output and standard definition of the Sensor
Horizontal and vertical scaling configurable
Supports 64 phases, initial phase independent configurable
Image Resolution
VGASensor, 420TVL
D1, SVGASensor, 540TVL
2.3, video output
Composite video CVBS (NTSC720 & TImes; 480PAL720 & TImes; 576)
ITU.BT-656 (10Bit) output (optional)
2.4, OSD
1 Graphic layer overlay (external 8K EEPROM)
Graphic window position configurable
Graphic window height and width configurable
Graphic data format configurable (supports lossless compression 1~6bpp index bitmap)
Palette content configurable, supports up to 64 color 32bit color palette (ARGB8888 format)
Hardware flashing display control
Hardware Graphic Data Decompression
Hardware Graphic Data DMA Transfer Handshake
2.5, clock
6MHz crystal
2.6, EEPROM configuration
2KBYTE supports multiple CMOS image sensor configurations
4KBYTE supports multiple CMOS image sensor configurations and column fixed mode noise cancellation
8KBYTE supports multiple CMOS image sensor configurations, column fixed mode noise cancellation, OSD
3, typical applicationThe occasions that can be used include building intercom, security monitoring, and rear view system, as shown in the following block diagram:
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