2D Comb Filter Video Decoder EVBs

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The AL244C-EVB-A0 & AL244C-EVB-A1evaluation boards are designed to demonstrate the capabilities of AverLogic’s AL244 chip, which is a high quality 4-in-1 video decoder. The AL244 combines four stand alone multistandard video decoders and includes 2D Comb filter for high level video surveillance applications.
These boards support CVBS, S-video and Component inputs. It decodes NTSC/ PAL/ SECAM from this input interface and converts it into YCbCr 4:2:2 or RGB- 565 digital video data through the programmable data bus.
These EVBs combine the AverLogic AL244 Decoder with the Philips SAA7105 Encoder. The input interfaces include four CVBS interfaces, two S-Video interfaces and one component interface. It also provides CVBS and S-Video output interfaces. The digital interface has an additional feature that allows it to interface through the AL244 decoder kernel.
The AL244C-EVB-A0 uses the AL244C-LF2-PBF chip (80-pin version, 10x10 mm).
Applications for the AL244
  • Video Surveillance System
  • Video Editing System


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Analog Input:
Four 10-bit ADC, AGC & ACC (Automatic Clamping Control)
Supports Auto Multi-Standard NTSC/PAL/SECAM mode detection
Supports Weak & Non-Standard Signal mode detection
Adaptive 2D Comb-Filter video decoding for Y/C separation
Digital video output:
Supports four digital ITU-R 656 8-bit outputs with four-video-decoder mode.
Supports two ITU-R 601 16-bit outputs with two-video-decoder mode.
Supports RGB 565 16-bit output with two-video-decoder mode.
Video Processing:
Closed Caption/V-Chip/WSS/WSS-J VBI decoding.
4-Decoder Mode (A,B,C and D):
4 analog CVBS inputs for each of the four video decoders
Standard ITU-R BT 656 format 8-bit outputs
4 RTSO (Real Time Status Output) signals for each of the 4 video decoders
2 Fast Channel-Switching I/Os for each decoder
2-Decoder Mode ( AB and CD):
Each of the 2 video decoders support S-Video and Component inputs
Standard ITU-R BT 656 format 8-bit outputs
Standard ITU-R BT 601 format 16-bit outputs
Digital RGB output ( 8-bit for Green channel,6-bit for Red and Blue Channels )
4 RTSO (Real Time Status Output) signals for each of the 2 video decoders
1.8V core logic. 3.3V I/O with 5V tolerance
Controlled via 2-wire serial-bus interface. All 4 video decoders require only one serial bus and share one slave address
Requires only one crystal for all 4 video decoders
Supports interrupt output pin for hardware mode detection
Built-in Test Pattern Generator
Low power consumption
Small-size and Lead Free Package LQFP-128 (14x14mm) and LQFP-80 (10x10mm)


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Averlogic AL244C-EVB-A0 Datasheet
Averlogic Technologies Product Flyer

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2D Comb Filter Video Decoder EVBs
Part #: AL244C-EVB-A0
2D Comb Filter Video Decoder EVBs