EQCO31T20.3

Overview

The EQCO31T20.3 is a CoaXPress v1.1 compliant asymmetric coax driver designed for bidirectional communication over a single 75Ω coaxial cable. It supports high-speed downlink data transmission at bit rates up to 3.125 Gbps and provides a low-speed uplink channel operating at 21 Mbps. The device integrates an internal receiver for the uplink signal, allowing precise triggering events driven by the frame grabber. It enables simultaneous power distribution over the coax, supporting up to 900 mA to power connected cameras. Operating on a 1.2V supply with low power consumption under 70 mW, it utilizes a 16-pin QFN package.

Feature Summary

• Complies with the CoaXPress v1.1 Camera Standard for standardized high-bandwidth camera links.
• Provides full-duplex, bidirectional data channels combining high-speed downlink and low-speed uplink over a single coax cable.
• Supports Power over CoaXPress (PoCXP) to deliver power to cameras through the same transport cable used for data signals.
• Features integrated termination resistors and differential interfacing to simplify system design.

Applications

• High-definition and high-bandwidth links to industrial cameras
• Machine vision systems for semiconductor chip and display panel inspection
• Traffic license plate recognition and monitoring systems
• Broadcast and surveillance camera networks

Procurement Notes

Verify component authenticity against official Microchip Technology documentation before integration. Confirm that the specific ordering suffix matches the required package and temperature range specifications. Ensure compatibility with the corresponding receiver chipset for complete link functionality. Review the datasheet for absolute maximum ratings to prevent operational damage during implementation.

Selection Notes

Select this component when a lower-speed downlink of 3.125 Gbps is sufficient for the application bandwidth requirements. It serves as the transmitter side of the CoaXPress link, pairing with the EQCO31R20 receiver. Consider the 16-pin QFN footprint constraints and the necessity for external inductors to facilitate power delivery over the coaxial line.

Part Context

This device belongs to the EQCO62T/R20 chipset family manufactured by Microchip Technology. It functions specifically as the asymmetric coax driver within the CoaXPress ecosystem. While sharing architectural similarities with higher-speed variants, it is optimized for applications requiring reduced downlink throughput while maintaining standard uplink speeds and power capabilities.

Replacement Considerations

EQCO62T20.3