The DSC1121DI2-156.2500 is a 156.25 MHz XO (Standard) with a CMOS output, built on a MEMS resonator rather than a quartz crystal. The ±25 ppm frequency stability holds the clock edge jitter within the budget for 1 GbE, PCIe Gen1, and most FPGA reference-clock inputs.
Housed in a 6-SMD, No Lead package measuring 2.50 mm x 2.00 mm with a seated height of 0.90 mm, the DSC1121DI2-156.2500 fits into tight layouts alongside other small passive components. An Enable/Disable function on pin 1 lets the system shut down the oscillator output while keeping the supply alive, dropping the supply current from 35 mA (max) to 22 mA (max).