MEMS oscillator at 156.25 MHz for industrial clock trees
The DSC1502JA3A-156M2500T is a MEMS-based XO (Standard) delivering a 156.25 MHz LVCMOS output — a common reference for 10 Gigabit Ethernet, PCIe Gen 3, and high-speed serial links. The supply voltage accepts 2.5V to 3.3V, so the same part serves 2.5V and 3.3V clock domains without a separate regulator.
For a remote sensor node that sleeps most of the time, the oscillator's quiescent draw is negligible against the battery's self-discharge. Active current is 7.5 mA max at 156.25 MHz — the MEMS resonator consumes less than a quartz crystal oscillator at the same frequency, which matters when the clock tree runs from a 3.3V rail with limited headroom.
4-VLGA package and board-level fit
Housed in a 4-VLGA package measuring 2.50 mm x 2.00 mm with a seated height of 0.89 mm, this oscillator fits tight PCB stacks in handheld or multi-layer designs.