Cyclone V Device Handbook: Volume 2: Transceivers

ID 683586
Date 10/24/2018
Document Table of Contents Programmable Transmitter VCM

The transmitter buffers have on-chip biasing circuitry to establish the required VCM at the transmitter output. The circuitry supports a VCM setting of 0.65 V.

Note: On-chip biasing circuitry is available only if you select one of the Termination logic options in order to configure OCT. If you select external termination, you must implement off-chip biasing circuitry to establish the VCM at the transmitter output buffer.