1 GHz PLLatinum clock generator with 2:8 fanout
The LMK03318RHST is a PLLatinum™ clock generator from Texas Instruments, delivering up to 1 GHz on the output with a 2:8 input-to-output fanout — two reference inputs (LVCMOS) feed eight differential or single-ended outputs. Output format options include CML, HCSL, LVDS, LVPECL, and LVCMOS, covering the common clocking standards for FPGA reference clocks, SERDES, Ethernet PHYs, and high-speed ADC/DAC sampling clocks. The PLL includes a bypass mode, allowing the input reference to pass through cleanly — useful for system test modes or when a low-jitter external clock is preferred over the synthesised output.
Supply voltage is 3.15 V to 3.45 V, nominally a 3.3 V rail — the PLL's jitter performance depends on a clean, low-noise supply, so a dedicated LDO or ferrite-bead filter on the 3.3 V plane is standard practice for this class of device.
Surface-mount assembly with a standard reflow profile; the exposed pad requires a solder-paste stencil opening that covers 50–80 % of the pad area to avoid voiding. No special bake-out is needed for the moisture-sensitive level (MSL) if the floor life is within limits.
Active lifecycle and sourcing
Standard procurement through authorized distribution applies; no date-code or surplus-channel risk for this part number.