133.3333 MHz MEMS oscillator for timing-tree design
The DSC1121CE1-133.3333 is a MEMS-based XO (Standard) oscillator from Microchip's DSC1121 series, delivering a 133.3333 MHz CMOS output — a frequency commonly used as a reference clock for high-speed serial transceivers, FPGAs, or Ethernet PHYs that require a non-standard rate above 100 MHz.
Supply voltage and stability for BOM fit
The 2.25V to 3.6V supply range covers both 2.5V and 3.3V logic rails without a separate LDO — a single oscillator serves boards with mixed voltage domains, reducing BOM line count.
Housed in a 6-SMD no-lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm — the compact footprint suits space-constrained designs like SFP modules or PCIe add-in cards, though the no-lead construction requires a reflow profile compatible with the MEMS die inside.