TW2868-LA2-CR

Overview

The TW2868-LA2-CR is an integrated circuit video decoder manufactured by Renesas Electronics Corporation. It features eight high-quality NTSC/PAL/SECAM video decoders that convert analog composite video signals to digital component YCbCr data. Each channel includes a 10-bit ADC, proprietary clamp and gain controllers, and a 4H comb filter for luminance and chrominance separation. The device also incorporates one NTSC/PAL video encoder with two 10-bit DACs supporting CVBS and YC outputs. Additionally, it contains an audio CODEC with ten audio ADCs and one DAC. The component is housed in a 128-LQFP (14x14 mm) surface-mount package.

Feature Summary

• Integrates eight video decoders with 10-bit ADCs and image enhancement techniques including IF compensation and programmable peaking.
• Includes a single video encoder with dual 10-bit DACs for CVBS and YC output generation.
• Features an embedded audio CODEC with ten-channel ADC processing and one-channel DAC playback capability.

Applications

• Security surveillance systems requiring multi-channel video input
• Analog-to-digital video signal conversion for digital processing
• Integrated audio and video recording or mixing equipment

Procurement Notes

This component is officially listed as obsolete with an End of Life date of June 6, 2025. Inventory availability is limited and subject to depletion without restocking. Verification of current stock status and alternative sourcing strategies is required before procurement planning. Compliance with RoHS3 specifications is confirmed for existing units.

Selection Notes

Select this component only if legacy support for the TW2868 family is mandatory due to existing design constraints. Verify compatibility with 5V supply requirements and 128-pin LQFP footprint. Consider the obsolescence timeline when designing long-term production runs. Ensure system architecture accommodates the specific pinout and thermal characteristics of the 14x14 mm package.

Part Context

The TW2868 belongs to Renesas' specialized video processing portfolio designed for security applications. It combines multiple decoding, encoding, and audio functions into a single chip to reduce board space. The LA2 suffix typically denotes specific packaging or temperature grade variations within the product line, though functional equivalence remains consistent across the base model.

Replacement Considerations

No direct substitute part numbers are publicly documented for the TW2868-LA2-CR. Designers must evaluate potential redesigns using newer Renesas video decoder families or third-party equivalents with compatible pinouts and functionality.

FAQ

What video standards does the TW2868-LA2-CR support?

It supports NTSC, PAL, and SECAM analog video standards for both decoding and encoding operations.

How many audio channels are processed by the built-in CODEC?

The device includes ten audio Analog-to-Digital converters for processing and one Digital-to-Analog converter for playback.

What is the resolution of the analog-to-digital converters in each video channel?

Each of the eight video channels contains a 10-bit ADC.