The Texas Instruments LMK03000DISQX/NOPB is a clock conditioner — it takes in a reference clock through LVCMOS, LVDS, or LVPECL and fans it out to eight LVDS or LVPECL outputs. No PLL on board, so the output frequency is a divided version of the input, not a synthesized one. The part handles input clocks up to 1.296 GHz, which puts it in the range for high-speed ADC/DAC reference clocks, FPGA transceiver reference clocks, and backplane timing distribution.
1:8 fan-out and differential signalling
The 1:8 input-to-output ratio means one reference clock feeds eight loads, saving a separate fan-out buffer. Both input and output are differential, so the part keeps common-mode noise rejection through the path. The divider is a Yes on the spec — you can divide the input frequency down — but there is no multiplier, so the output frequency will always be at or below the input frequency.
Supply and temperature envelope
Runs from a 3.15 V to 3.45 V supply rail — that is a tight tolerance, so the board regulator needs to be within 3.3 V ±4.5 %.
48-WFQFN with exposed pad, 7x7 mm body. The thermal pad underneath needs a soldered via array to the ground plane — without it the part derates above 70°C ambient. Surface-mount only; not a field-swap candidate without a hot-air station.