ADV611JST

Overview

The ADV611JST is a single-chip digital video codec manufactured by Analog Devices Inc., housed in a 120-lead LQFP package. It supports real-time compression and decompression of CCIR-601 component digital video at resolutions up to 720 x 288 pixels. The device operates at a maximum pixel rate of 13.50 MHz, handling PAL (50 fields/sec) and NTSC (59.94 fields/sec) standards. It achieves compression ratios ranging from visually loss-less to 7500:1, typically yielding visually loss-less results at 4:1 for natural images. The codec includes a programmable quality box feature and hardware field rate reduction capabilities.

Feature Summary

• Integrates wavelet-based subband coding architecture with a programmable quantizer for high-quality image compression.
• Features a programmable quality box allowing selective higher quality compression for specific regions within a video field.
• Includes hardware field rate reduction logic to optimize compression efficiency in surveillance applications.
• Provides a generic 16-bit or 32-bit host interface with a 512-position, 32-bit wide FIFO for compressed data buffering.

Applications

• Closed Circuit TV (CCTV) cameras and systems
• Time-lapse video tape recorders
• Wireless CCTV cameras
• Fiber optic CCTV transmission systems

Procurement Notes

Verify the specific suffix 'JST' against the manufacturer's current ordering guide to confirm package type and temperature range specifications. Ensure compatibility with external DRAM requirements for the on-chip transform buffer and host interface buffering functions.

Selection Notes

Select this component for applications requiring real-time interlaced video processing with minimal system complexity. The device eliminates the need for fast external memories during wavelet transforms due to its internal SRAM. Consider the industrial temperature range variant if operation outside standard commercial limits is required.

Part Context

The ADV611/ADV612 series serves as a dedicated solution for digital video compression, offering bitstream compatibility with the earlier ADV601 models. The ADV611 represents the commercial grade version, while the ADV612 provides extended industrial temperature performance. Both utilize the same 120-lead LQFP footprint.

Replacement Considerations

The ADV611 is functionally compatible with the ADV601 regarding compressed bitstreams. For industrial temperature requirements, the ADV612 is the direct equivalent within the same package family.