General Description

AL700/701/710 is a 4 channel QUAD-screen video controller that can accept digital video input

sources, provides 2 analog output ports (not for AL701), 2 digital output ports, and memory direct

access mode allowing images to be uploaded onto a PC. AL700/701/710 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

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 (no need external encoders,

not for AL701)

!  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

!  Available in 208-pin 28*28mm PQFP

!  Note: AL710 only supports Black & White video mode