GS2994-INTE3

Video Processing Overview

The GS2994-INTE3 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, optimized for 270Mbps, 1.485Gbps, and 2.97Gbps data rates. The device features automatic cable equalization, DC restoration for pathological test patterns, and carrier detect functionality for power management. It includes programmable de-emphasis for long PCB traces and gain selection for flat attenuation compensation. Available in a 16-pin QFN package, it operates from -40°C to +85°C with typical power consumption of 166mW at 1.2V DC-coupled.

Video Processing Feature Summary

• Automatic cable equalization for restoring signals over 75-ohm coaxial cables
• DC restoration capability to compensate for DC content in SMPTE pathological test patterns
• Carrier detect output enables automatic power-down upon loss of signal or manual sleep mode via voltage programmable threshold
• Programmable de-emphasis with three operating levels to support long PCB traces

Video Processing Applications

• SDI transmission systems requiring signal equalization over 75-ohm coaxial cables
• Video infrastructure equipment supporting SMPTE 424M, 292M, and 259M standards
• Systems utilizing Gennum 3.3V cable drivers and reclockers with DC-coupled differential outputs

Video Processing Procurement Notes

Verify the specific suffix INTE3 against the manufacturer's current datasheet to confirm pinout, packaging, and environmental compliance details. Ensure design compatibility with 75-ohm coaxial input requirements and check if the 16-pin QFN footprint matches existing GS2974 or GS2984 designs for drop-in replacement scenarios. Confirm thermal performance under maximum operating temperature conditions.

Video Processing Selection Notes

Select this component when designing SDI receivers requiring automatic equalization for 270Mbps to 2.97Gbps signals. It is suitable for applications needing DC restoration and carrier detection for power management. Consider its compatibility with 1.2V to 3.3V CML logic for DC-coupled outputs. Evaluate power consumption needs, noting typical dissipation varies with termination voltage.

Video Processing Part Context

The GS2994 belongs to Semtech's video IC portfolio, specifically within the cable equalizer category. It is part of a family that includes footprint-compatible predecessors like the GS2974 and GS2984. This series addresses the need for reliable signal recovery in serial digital interface (SDI) transmission paths, bridging the gap between BNC connectors and FPGA or ASIC inputs.

Video Processing Replacement Considerations

The GS2994 is explicitly stated as footprint and drop-in compatible with existing GS2974 and GS2984 designs. Verify electrical parameters and pin assignments against these specific legacy parts before substitution.