EQCO125X40C1T-I/8EX

Overview

The EQCO125X40C1T-I/8EX is a single-chip equalizer, driver, and reclocker designed for high-speed asymmetric full-duplex communication. It repeats 8b/10b coded data signals with a downstream bit-rate ranging from 1.25 Gbps to 12.5 Gbps. The device supports simultaneous signaling over a single cable, including up to 12.5 Gbps downlink, 20.833 Mbps or 41.666 Mbps uplink, and Power over Coax. It features an integrated auto-adaptive equalizer and reference-less Clock-Data Recovery (CDR) to restore signal integrity. The component operates on a single 1.25 V supply and is housed in a 16-pin, 4 mm QFN package with a 0.65 mm pin pitch.

Feature Summary

• Supports CoaXPress standards with speeds from CXP-1 to CXP-12
• Integrates equalizer, CDR, and cable driver for both uplink and downlink channels
• Enables simultaneous power transmission over coax alongside data signals
• Operates without external crystals or reference clocks

Applications

• CoaXPress compliant systems supporting all standards and speeds
• Links for high-definition cameras
• High-speed capture cards requiring long cable lengths
• Machine vision, military, aerospace, medical, broadcast, and surveillance applications

Procurement Notes

Verify the specific ordering suffix against current Microchip documentation to confirm package type and tape-and-reel configuration. Confirm that the -I/8EX variant matches the required industrial temperature range and RoHS compliance status for the target deployment environment.

Selection Notes

Select this component when a symmetric transceiver solution is needed for both camera and frame grabber sides of a link. Consider the lower-cost EQCO125T40 if only the device side requires equalization. Ensure the application utilizes 8b/10b coding and requires support for up to 12.5 Gbps downstream rates.

Part Context

This part belongs to the EQCO125X40 family of CoaXPress 2.0 devices. The family includes variants such as the EQCO125X40C1-I/3DW and the EQCO125T40. These components are designed to replace multiple discrete chips by integrating equalization, reclocking, and driving functions into a single small-footprint package.

Replacement Considerations

Microchip recommends the EQCO125X40C1T-I/3DW as a replacement for the EQCO125X40C1T-I/8EX.