Quad Video Processor

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AL700 is a 4 channel QUAD-screen video controller that can accept digital video input sources, provides 2 analog output ports, 2 digital output ports, and memory direct access mode allowing images to be uploaded onto a PC. AL700 not only supports 4 channel 8-bit ITU-R-656 4:2:2 interface inputs, dual 8/16-bit digital outputs for successive process and dual analog (TV encoder embedded, not for AL701) video outputs for TV, Camcorder, VCR, etc. SDRAM memory is supported via a direct video frame buffer interface. Through I2C serial or proprietary parallel bus, fully programmable register set allows flexibility of control of video window overlay, OSD display, input channel select or output source select. OSD (On Screen Display) windows provide overlay of various graphics images such as Pop-up menu, logo bitmap or message text, etc. Other functions provided by AL700, such as PIP (Picture In Picture), 2X zoom with vertical and horizontal interpolation, anti-rolling and motion detection, can increase the value and power of a security system design. Averlogic¡¦s proprietary digital and analog signal processing technologies create a high quality tear free, flicker free and anti-aliasing display. The AL700 provides a cost-effective solution for all applications of security related system.


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Accepts NTSC, PAL and SECAM video formats
Supports 4 independent 656/601 8-bit video inputs
Supports multiplexing function for 2 channels using one decoder
Provides 2 independent 656/601 8/16-bit digital outputs
Provides 2 independent S-video/Composite analog video outputs
Picture location selectable
Supports PIP (Picture-In-Picture) function
Supports programmable picture overlay and layer priority
Displays picture at arbitrary channels of 1,2,3 and 4
Provides channel switching without rolling
Freeze individual channel
Provides video loss detection and motion detection
2X zoom with vertical and horizontal interpolation
Provides embedded OSD (On Screen Display) and supports external OSD function
Supports BMP image overlay and Non-fixed font display
Provides fading effects for OSD overlay
Supports various types of video decoder and 1Mx16 or 4Mx16 SDRAM
Supports registers programming via I2C serial or proprietary parallel interface
Supports uploading image data onto PC
Provides horizontal image mirroring


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Device Type
Video Surveillance Controller
Frame Rate
25 or 30 Hz
Input Channels
Input Formats
8-bit ITU-R.BT.656/601
Output Channels
Output Formats
CVBS, S-Video, 656, 601
TV standards
Temp range
0 to 70 C
3.3 V
3.3 V
Video Clock
27 MHz


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