TW6872-NA1-CR

Overview

The TW6872-NA1-CR is a triple-rate SDI transmitter supporting Standard Definition (SD), High Definition (HD), and 3G video. It serializes parallel BT.656/BT.1120/ASI video data from CMOS sensors or ISPs into an SDI stream via an integrated cable driver. The device operates on two power supplies: 1V for the digital core and 3.3V for I/O and analog sections. It utilizes a single 27MHz crystal input for all supported audio/video modes. The component is specified for operation over an ambient temperature range of -40°C to +85°C.

Feature Summary

• Supports triple-rate transmission including SD, HD, and 3G formats with compliance to SMPTE standards.
• Features an integrated VC-2 encoder enabling visually lossless compression to extend cable reach.
• Includes an integrated 75-ohm cable driver with pre-emphasis and de-emphasis capabilities.
• Provides flexible audio interfaces supporting both analog and I2S serial digital audio inputs.

Applications

• SD/HD/3G-SDI Camera systems
• Video distribution networks requiring extended cable reach
• Broadcast equipment utilizing uncompressed or compressed SDI links

Procurement Notes

Verify the specific ordering suffix NA1-CR against manufacturer documentation to confirm package type and temperature rating. Ensure compatibility with required voltage levels and clock configurations during system design. Confirm RoHS compliance status if applicable to your manufacturing requirements.

Selection Notes

Select this component when a compact solution is needed for converting parallel video interfaces to serial SDI streams. Consider its integrated compression feature if extending transmission distance beyond standard limits is required. Evaluate power supply constraints as it requires distinct 1V and 3.3V rails.

Part Context

Originally developed by Intersil, this product line was acquired by Renesas Electronics Corporation. The TW6872 serves as a transmitter counterpart to receivers like the TW6874, forming complete end-to-end SDI link solutions. It addresses the need for high-quality video transmission in professional broadcast and industrial applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.

FAQ

Does the TW6872 support VC-2 compression?

Yes, the TW6872 includes an integrated VC-2 encoder that allows HD video to be transmitted at SD rates, thereby extending cable reach.

What video input interfaces does the TW6872 accept?

It accepts parallel BT.656, BT.1120, and Asynchronous Serial Interface (ASI) video data from CMOS sensors or ISP chips.