156.257 MHz fixed-frequency XO in a 6-QFM package
The LMK60E2-156M25SIAT: It is housed in a 6-SMD module (6-QFM, 7x5 mm) — a compact footprint for surface-mount assembly that demands a standard reflow profile and a solid ground-plane under the exposed pad for thermal management. The 156.257 MHz output is a common reference for 10 Gigabit Ethernet and CPRI line rates, so it drops into a clock tree without an additional PLL multiplier.
