8. Clock Output Circuits (OUTx/OUTxB)
Each of the sixteen output drivers (eight differential pairs, OUT0/OUT0B—OUT7/OUT7B) is ac-coupled to its respective SMA connec-
tor. The output clock termination circuit is shown below. The output signal will have no dc bias. If dc coupling is required, the ac cou-
pling capacitors can be replaced with a resistor of appropriate value. The Si5397-A-EB provides pads for optional output termination
resistors and/or low-frequency capacitors. Note that components with a schematic “NI” designation are not normally populated on the
Si5397-A-EB and provide locations on the PCB for optional dc/ac terminations by the end user.
Figure 8.1. Output Clock Termination Circuit
UG353: Si5397 Evaluation Board User's Guide
Clock Output Circuits (OUTx/OUTxB)
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