TW2809-BC1-GR

Encoders, Decoders, Converters Overview

The TW2809-BC1-GR is a multichannel H.264 audio/video codec designed for security surveillance applications. It supports real-time full-duplex encoding and decoding of up to eight standard definition (SD) video channels or high definition (HD) 1080x60i streams. The device features four BT.656 compliant video input/output ports operating up to 108MHz, and two BT.1120 compliant ports at 74.25MHz. Audio capabilities include real-time 16-channel ADPCM encoding and one-channel decoding with sample rates from 8kHz to 48kHz. It utilizes an external 16-bit DDR2 SDRAM running at 400MHz and communicates via a 32-bit PCI target interface at 33/66MHz. Power consumption is rated at 1.2W, utilizing 1.2V core, 3.3V I/O pad, and 1.8V DDR2 DRAM I/O voltages within a PBGA-320 package.

Encoders, Decoders, Converters Feature Summary

• Real-time full-duplex H.264 main profile compliance for simultaneous encoding and decoding operations.
• Flexible video interface architecture supporting multiple SDI standards including BT.656 and BT.1120.
• Integrated peripheral DMA controller facilitating efficient data transfer between host and memory.
• Independent channel control allowing customization of encode/decode modes, frame rates, and bitrates.

Encoders, Decoders, Converters Applications

• Digital Video Recorder (DVR) platforms requiring multi-channel SD processing.
• Security surveillance systems utilizing CIF resolution network streams.
• Video gateways converting between different video interface standards.
• Embedded multimedia processing units requiring low power consumption.

Encoders, Decoders, Converters Procurement Notes

Verify component authenticity through authorized Renesas or Intersil distributors. Confirm the specific suffix matches the required package and temperature grade. Check for end-of-life status as this component may be discontinued. Ensure compatibility with existing PCB footprints for the PBGA-320 package before ordering.

Encoders, Decoders, Converters Selection Notes

Select this codec when system requirements demand simultaneous multi-channel H.264 processing with minimal CPU overhead. Evaluate memory bandwidth requirements for the external DDR2 interface. Consider the PCI interface constraints if integrating with legacy host architectures. Verify thermal management capabilities given the 1.2W power dissipation in the specified package.

Encoders, Decoders, Converters Part Context

This component belongs to the TW2809 series of video codecs manufactured by Intersil, now part of Renesas Electronics. It serves as a specialized solution for video compression tasks, distinct from general-purpose microprocessors. The device integrates dedicated hardware accelerators for H.264 compression, reducing the load on the main system processor.

Encoders, Decoders, Converters Replacement Considerations

Check for newer generations of video codecs from Renesas that offer higher channel counts or HD support. Verify pin-to-pin compatibility if replacing directly on existing boards. Assess software driver availability for alternative components to ensure seamless integration into current firmware environments.