The ICS843101I-100 is a low phase-noise frequency margining synthesizer with freHiPerClockSTM quency margining capability and is a member of the HiPerClockSTM family of high performance clock solutions from ICS. In the default mode, the device nominally generates a 100MHz LVPECL output clock signal from a 24MHz crystal input. There is also a frequency margining mode available where the device can be programmed, using the serial interface, to vary the output frequency up or down from nominal in 2% steps. The ICS843101I-100 is provided in a 16-pin TSSOP.