GS2974ACNE3

Video Processing Overview

The GS2974ACNE3 is a high-speed BiCMOS integrated circuit designed to equalize and restore signals received over 75-ohm coaxial cable. It supports SMPTE 424M, SMPTE 292M, and SMPTE 259M standards, with performance optimized for 270Mbps, 1.485Gbps, and 2.97Gbps data rates. The device features automatic cable equalization, DC restoration, and a carrier detect output that enables automatic power-down upon loss of signal. It operates on a single 3.3V supply and includes manual bypass capabilities.

Video Processing Feature Summary

• Automatic cable equalization for 75-ohm coaxial transmission lines
• DC restoration to compensate for pathological test pattern content
• Carrier detect output enabling automatic power-down on signal loss
• Manual bypass mode for low data rate applications

Video Processing Applications

• HD-SDI video distribution systems
• SMPTE 292M compliant broadcast infrastructure
• SMPTE 424M (3G-SDI) signal conditioning
• SMPTE 259M (SD-SDI) signal restoration

Video Processing Procurement Notes

Verify the specific suffix ACNE3 against official Semtech documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing GS2974A or GS2974B designs if used as a drop-in replacement. Confirm RoHS compliance status through the manufacturer's current datasheet rather than relying solely on ordering code descriptions.

Video Processing Selection Notes

Select this component for applications requiring equalization of 75-ohm coaxial cables carrying SDI signals up to 3G speeds. It is suitable for environments needing automatic power management via carrier detection. Consider footprint compatibility with legacy GS2974/GS2984 designs when integrating into existing PCB layouts.

Video Processing Part Context

The GS2974 series belongs to Gennum’s (now Semtech) family of adaptive cable equalizers. These devices are engineered for professional video applications where signal integrity over long coaxial runs is critical. The ACNE3 suffix typically denotes a specific commercial temperature range and packaging configuration within the broader GS2974 product line.

Video Processing Replacement Considerations

Publicly confirmed substitutes include GS2974A, GS2974B, GS2984, and GS2994. These parts share footprint and pinout compatibility, allowing for direct drop-in replacements in most designs without schematic modifications.