Intel® Arria® 10 Core Fabric and General Purpose I/Os Handbook

ID 683461
Date 10/25/2023
Document Table of Contents LVPECL Termination

The Arria® 10 devices support the LVPECL I/O standard on input clock pins only:

  • LVPECL input operation is supported using LVDS input buffers.
  • LVPECL output operation is not supported.
Use AC coupling if the LVPECL common-mode voltage of the output buffer does not match the LVPECL input common-mode voltage.
Note: Intel recommends that you use IBIS models to verify your LVPECL AC/DC-coupled termination.
Figure 97. LVPECL AC-Coupled External Termination

Support for DC-coupled LVPECL is available if the LVPECL output common mode voltage is within the Arria® 10 LVPECL input buffer specification.

Figure 98. LVPECL DC-Coupled External Termination

For information about the VICM specification, refer to the device datasheet.