The AD9543 supports existing and emerging ITU standards for the delivery of frequency, phase, and time of day over service provider packet networks.The 10 clock outputs of the AD9543 are synchronized to any one of up to four input references. The digital phase-locked loops (DPLLs) reduce timing jitter associated with the external references. The digitally controlled loop and holdover circuitry continuously generate a low jitter output signal, even when all reference inputs fail.The AD9543 is available in a 48-lead LFCSP (7 mm × 7 mm) package and operates over the −40°C to +85°C temperature range.Note that throughout this data sheet, multifunction pins, such as SDO/M5, are referred to either by the entire pin name or by a single function of the pin, for example, M5, when only that function is relevant.AppliationsPTP (IEEE 1588), and SyncE jitter cleanup and synchronizationOptical transport networks (OTN), SDH, and macro and small cell base stationsOTN mapping/demapping with jitter cleaningSmall base station clocking, including baseband and radioStratum 2, Stratum 3e, and Stratum 3 holdover, jitter cleanup, and phase transient controlJESD204B support for analog-to-digital converter (ADC) and digital-to-analog converter (DAC) clockingCable infrastructuresCarrier Ethernet