Article ID: 000088637 Content Type: Connectivity Last Reviewed: 12/13/2021

What is the AC coupling capacitor recommendation for E-tile reference clock input?

Environment

BUILT IN - ARTICLE INTRO SECOND COMPONENT
Description

It is recommended to add external AC coupling capacitors given the E-tile reference clock input buffer structure.

 

Resolution

There are two internal 50ohm terminations that will act as 100ohm parallel termination. See the Intel® Stratix® 10 TX Signal Integrity Development Kit for an example of these capacitors. 

IO-pad-ring-transceiver-ref-clock-inputpad.png

Please refer to E-Tile Transceiver PHY User Guide Figure 64. IO Pad Ring - Transceiver Reference Clock Input Pad.

Related Products

This article applies to 3 products

Intel® Stratix® 10 DX FPGA
Intel® Stratix® 10 MX FPGA
Intel® Stratix® 10 TX FPGA

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