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Video Decoder and ADC ICs
  AL244 4-in-1 Comb-Filter Video Decoder

                 

Functional Description

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

 

Video Processing:

  • Closed Caption/V-Chip/WSS/WSS-J VBI decoding
  • Macrovision copy protection detection
  • Contrast/Brightness/Hue/Saturation adjustment
  • Digital Chrominance Transient Improvement (DCTI)

4-Decoder Mode (A, B, C and D)

  • 4 analog CVBS inputs for each of the 4 Video Decoders
  • Standard ITU-R BT 656 format 8-bit outputs


2-Decoder Mode (A and C)

  • Each of the 2 Video Decoders support CVBS, S-Video inputs
  • Standard ITU-R BT 656 format 8-bit outputs

Miscellaneous

  • 1.8V core logic, 3.3V I/O with 5V tolerance
  • Controlled via 2-wire serial-bus interfaces. All 4 video decoders require only one serial-bus interface 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 package LQFP-80

Applications

  • Video Security and Surveillance Systems
  • Video Editing Systems
 

 

Addtional Information

  AL244 Flyer
     
  Reference Kits
  AL244C-EVB-A0 (4-in-1 2D Comb Filter Video Decoder EVB - AL244-LF2-PBF version)
     

 

 
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