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Functional
Description
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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Applications
- Video Surveillance System
/ DVR
- Video Quad/Splitting
Processor
- Car Rear Vision System
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Additional Information |
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Reference Kit |
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Features
- 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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