How to terminate HCSL for IDT timing devices

HCSL can be terminated to a receiver either on an add-in card or on the same circuit board with a small number of resistors. Below are two recommended terminations. Figure 1 is the standard termination from the PCI Express specification and figure 2 is a modified termination for a point to point connection on the same circuit board. See the solution below. For other questions not addressed by the Knowledge Base, please submit a technical support request.