3.2 GHz clock distribution with 14 outputs
The HMC7043LP7FETR is a clock buffer from Analog Devices that takes a single input and fans it out to 14 individual outputs, each independently programmable for CMOS, LVDS, or LVPECL levels. The 3.2 GHz maximum frequency means it can handle the fastest ADC/DAC reference clocks and FPGA transceiver reference inputs without adding jitter.
1:14 fanout and output format flexibility
With a 1:14 input-to-output ratio, this single chip replaces a tree of multiple fanout buffers, reducing PCB area and clock tree complexity. Each output can be set to CMOS, LVDS, or LVPECL independently — so a board mixing a CMOS FPGA fabric clock with LVDS ADC clocks and LVPECL DAC clocks can all be fed from the same buffer. The integrated PLL (Yes) allows the device to clean up a noisy reference or generate a multiplied output, though the part is classified as a clock buffer rather than a full clock generator.
Active production, industrial temperature range
The part is ROHS3 compliant and supplied in a 48-LFCSP (7x7) package — a 7 mm square QFN with an exposed pad for thermal management. The tape-and-reel variant suits automated assembly lines.
Supply voltage and design-in notes
A clean 3.3 V rail with low ripple is essential — any noise on the supply couples into the clock outputs and degrades phase noise.