156.25 MHz LVPECL clock source for high-speed serial links
The DSC1122AI1-156.2500T is a MEMS-based XO delivering a 156.25 MHz LVPECL output — the standard reference clock for 10GbE, Fibre Channel, and SONET/SDH line cards. The LVPECL differential pair drives long PCB traces with low jitter, keeping the bit-error rate within the PHY's budget. Supply voltage spans 2.25V to 3.6V, covering both 2.5V and 3.3V rails without a dedicated regulator.
The 6-SMD package (7.00mm x 5.00mm) with exposed pad aids thermal conduction to the PCB ground plane.
Microchip lists the DSC1122AI1-156.2500T as Active.