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