126.96.36.199. LVPECL I/O Standard in Intel® Cyclone® 10 LP Devices
Intel® Cyclone® 10 LP devices support the LVPECL input standard at the dedicated clock input pins only. The LVPECL receiver requires an external 100 Ω termination resistor between the two signals at the input buffer.
LVPECL requires AC coupling when the common mode voltage of the output buffer is higher than the LVPECL input common mode voltage on the Intel® Cyclone® 10 LP device.
In the following figures, the 50 Ω resistors at the receiver are external to the device.
DC-coupled LVPECL is supported if the LVPECL output common mode voltage is in the LVPECL input buffer specification of the Intel® Cyclone® 10 LP devices.
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