What this oscillator brings to the clock tree
The LMK6CE04000CDLFT is a low-jitter, high-performance oscillator from Texas Instruments, covering a programmable frequency range from 1 MHz up to 200 MHz. It draws a rated supply current of 61 mA across its 2.37 V to 3.5 V supply range, which keeps the power budget predictable in tight rail designs. Housed in a 4-VDFN package with a 4-VSON (2.5x2) supplier footprint, it mounts on standard surface-mount pads.
Supply voltage and current — sizing the rail
The 61 mA supply current at nominal voltage is the figure to use when sizing the LDO or buck regulator feeding this oscillator. With a 3.5 V maximum supply, the total power dissipation stays under 215 mW, so the 4-VDFN package handles it without thermal vias in most layouts. The 2.37 V minimum supply allows operation from a 2.5 V rail with margin, common in low-power MCU and FPGA systems. Dropping below that floor risks the oscillator stopping or jitter spiking — keep the rail clean within that window.