GENERAL DESCRIPTION
The ADV611/ADV612 are low cost, single chip, dedicated function, all-digital-CMOS-VLSI devices capable of supporting visually loss-less to 7500:1 real-time compression and decompression of CCIR-601 digital video at very high image quality levels. The chips integrate glueless video and host interfaces with on-chip SRAM to permit low part count, system level implementations suitable for a broad range of applications. The ADV611/ADV612 are 100% bitstream compatible with the ADV601. The ADV611/ADV612 comes in a 120-lead LQFP package.
   
FEATURES
    Programmable “Quality Box”
    Industrial Temperature Range (ADV612)
    Hardware Frame Rate Reduction
    100% Bitstream Compatible with the ADV601 and
        ADV601LC
    Precise Compressed Bit Rate Control
    Field Independent Compression
    8-Bit Video Interface Supports CCIR-656 and
        Multiplexed Philips Formats
    General Purpose 16- or 32-Bit Host Interface with
        512 Deep 32-Bit FIFO

    PERFORMANCE
    Real-Time Compression or Decompression of CCIR-601
        to Video:
            720 x 288 @ 50 Fields/Sec — PAL
            720 x 243 @ 60 Fields/Sec — NTSC
    Compression Ratios from Visually Loss-Less to 7500:1
    Visually Loss-Less Compression At 4:1 on Natural
        Images (Typical)
   
APPLICATIONS
    CCTV Cameras and Systems
    Time-Lapse Video Tape Recorders
    Time-Lapse Video Disk Recorders
    Wireless CCTV Cameras
    Fiber CCTV Systems