GENERAL DESCRIPTION

The ADV601 is a very low cost, single chip, dedicated function, all digital CMOS VLSI device capable of supporting visually loss-less to 350:1 real-time compression and decompression of CCIR-601 digital video at very high image quality levels. The chip integrates 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 ADV601 is a video encoder/decoder optimized for real-time compression and decompression of interlaced digital video. All features of the ADV601 are designed to yield high performance at a breakthrough systems-level cost. Additionally, the unique sub-band coding architecture of the ADV601 offers you many application-specific advantages. A review of the General Theory of Operation and Applying the ADV601 sections will help you get the most use out of the ADV601 in any given application.

FEATURES

Precise Compressed Bit Rate Control

Field Independent Compression

Flexible Video Interface Supports All Common Formats, Including CCIR-656

General Purpose 8-, 16- or 32-Bit Host Interface With 512 Deep 32-Bit FIFO

PERFORMANCE

Real-Time Compression Or Decompression of CCIR-601 And Square Pixel Video:

720 3 288 @ 50 Fields/Sec — PAL

768 3 288 @ 50 Fields/Sec — PAL

720 3 243 @ 60 Fields/Sec — NTSC

640 3 243 @ 60 Fields/Sec — NTSC

Compression Ratios from Visually Loss-Less To 350:1

Visually Loss-Less Compression At 4:1 on Natural Images (Typical)

APPLICATIONS

Nonlinear Video Editing

Video Capture Systems

Remote CCTV Surveillance

Digital Camcorders

Broadcast Quality Video Distribution Systems

Video Insertion Equipment

Image And Video Archival Systems

Digital Video Tape

High Quality Video Teleconferencing