The XCLK1 2-GHz multichannel clock generator PMC/XMC module provides up to five phase-matched low-jitter sampling clocks for high-speed A/D converters. The module has typical phase noise of -105 dBc/Hz at 10-Hz offset and -165 dBc/Hz at 100-kHz offset.

The card offers the choice of internal or external clock reference sources, with a default onboard 10-MHz TCXO. It can momentarily halt all sampling clock outputs using its trigger/reset input, giving time for all acquisition cards to be reset. The modules output is a 50-Ω ac-coupled LVPECL signal.