EQCO62R20.3

Overview

The EQCO62R20.3 is a 6.25 Gbps asymmetric CoaXPress equalizer designed for the frame grabber side of a bidirectional link. It supports up to 68 meters of high-quality coax at 6.25 Gbps and up to 212 meters at 1.25 Gbps. The device receives downlink signals from 1.25 Gbps to 6.25 Gbps and transmits a 21 Mbps uplink signal. It operates on a single 1.2V supply with low power consumption under 70 mW. The component is housed in a 16-pin, 4 mm QFN package and functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Complies with the CoaXPress v1.1 camera standard for high-definition video links
• Features an auto-adaptive equalizer core that compensates for cable attenuation and frequency response variations
• Supports simultaneous transmission of data and power over a single 75Ω coaxial cable
• Includes integrated termination resistors for differential signaling and clock-data recovery

Applications

• High-bandwidth links to high-definition cameras
• Machine vision systems for semiconductor chips and display panel inspection
• Military, aerospace, and medical imaging applications
• Broadcast and surveillance camera systems
• Traffic license plate and monitoring systems

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to ensure correct package and temperature grade. Confirm compatibility with existing system voltage requirements and interface standards before integration. Check for any product discontinuance notifications or end-of-life status updates directly from the manufacturer. Ensure all external components match the recommended values for optimal RF performance.

Selection Notes

Select this component for the host or frame grabber side of a CoaXPress link where high-speed downlink reception is required. It pairs with the EQCO62T20 driver on the camera side. Consider the EQCO31R20.3 if lower speeds up to 3.125 Gbps are sufficient. Evaluate PCB layout constraints as the design requires precise impedance matching and minimal parasitic capacitance for full performance.

Part Context

This part belongs to the EQCO62T/R20 chipset family developed by Microchip Technology (formerly EqcoLogic). The chipset enables full-duplex communication over a single coax cable. While the T variant acts as the transmitter driver, the R variant serves as the receiver equalizer. This specific model is optimized for high-speed data recovery in professional video and industrial inspection environments.

Replacement Considerations

The EQCO31R20.3 is a confirmed lower-speed alternative within the same family, supporting up to 3.125 Gbps downlink rates. Both parts share similar packaging and operational characteristics but differ in maximum throughput capabilities.