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