What the 100 MHz rating means for your clock tree
The LMK61I2-100M00SIAT: The 100 MHz output is a fixed-frequency LVDS or LVPECL-compatible oscillator — no PLL or external crystal needed. Supply current is 155 mA typical at 100 MHz; this is the full-load current into a 50-Ω terminated output. Budget this into the 3.3 V rail's total draw — a single oscillator adds about 0.5 W dissipation at the board level.
Housed in a 6-QFM (7x5 mm) surface-mount module — the 7x5 mm footprint is smaller than a standard 14-pin DIP oscillator, saving board area. The 6-pad land pattern is straightforward for reflow assembly; no external load capacitors are required.