TW5866-BA2-CR

Overview

The TW5866-BA2-CR is a video codec solution integrating eight analog A/V decoders and an H.264 encoder/decoder. It supports up to 9D1 of H.264 encoding, 8D1 decoding, or full-duplex codec operations. The device features two BT.656/BT.1120 digital interfaces for SD/HD input and output, alongside a PCI interface for CPU control. It includes per-channel scalers, motion detection, noise reduction, and OSD capabilities. Audio processing involves five ADCs, one DAC, and hardware G.726 ADPCM encoding/decoding. External memory support includes DDR2 SDRAM via a 16-bit or dual 8-bit interface.

Feature Summary

• Integrates eight high-quality NTSC/PAL video decoders with adaptive comb filters and noise reduction.
• Features an H.264 baseline profile encoder and decoder supporting dual-bitstream compression for local storage and network streams.
• Includes two BT.656 and two BT.1120 digital interfaces for flexible SD and HD video input and playback.
• Provides per-channel triple scalers, motion adaptive de-interlacing, and configurable OSD overlays.

Applications

• Low-cost H.264 hardware compression PCI cards
• Embedded DVR applications as an AV front-end chip
• Multi-channel surveillance systems requiring simultaneous encoding and decoding

Procurement Notes

Verify the specific suffix BA2-CR against official Intersil documentation to confirm package type and temperature range specifications. Ensure compatibility with required external DDR2 memory configurations and PCI bus requirements before integration into the design.

Selection Notes

Select this component for designs requiring integrated analog-to-digital conversion alongside H.264 compression. Consider the available digital interfaces if connecting to external decoders like the TW2866. Evaluate the PCI interface bandwidth needs for real-time preview and metadata access during system architecture planning.

Part Context

This part belongs to the Techwell TW5866 series, designed for multi-channel video processing. It complements other Techwell products such as the TW2866 video decoders and TW2880 audio processors to form complete surveillance solutions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for current product lifecycle status and potential obsolescence management options.

FAQ

What video standards does the TW5866 support?

It supports all NTSC (M/N/4.43) and PAL (B/D/G/H/I/K/L/M/N/60) standards with auto-detection capabilities.

How many audio channels can be encoded?

The device supports hardware G.726 ADPCM encoding for a maximum of 17 channels, with one channel dedicated to two-way communication.

Can the TW5866 handle HD video inputs?

Yes, it features two BT.1120 ports that support external HD video sources in 720P, 1080i, and 1080p formats.