SDI IP Core User Guide

ID 683587
Date 8/20/2020
Document Table of Contents

C. Receive and Retransmit

You cannot reuse the HD and 3G recovered clocks for transmitting because the transmitter jitter is then entirely dependent on the input jitter and jitter transfer function.

The general recommended approach to system locking with the SDI IP core is to use a voltage-controlled crystal oscillator (VCXO) external to the device. The VCXO must be locked to the receiver clock out of the SDI IP core. The SDI IP core then uses the clean VCXO output as the transmit clock.