Quad LVPECL clock source: 100 MHz and 125 MHz on four outputs
The DSC400-2222Q0118KE2T is a quad-output MEMS-based XO from Microchip's DSC400 family, delivering LVPECL clock signals at 100 MHz and 125 MHz on all four outputs — two frequency pairs, each pair identical.
Wide supply tolerance simplifies rail assignment
Operating from 2.25 V to 3.6 V, the oscillator runs off either a 2.5 V or 3.3 V rail without a dedicated LDO.
MEMS resonator vs quartz: shock tolerance and fast start
For a board that sees mechanical stress (portable instruments, fan-cooled racks), this reduces the risk of frequency drift during operation.
Microchip lists the DSC400-2222Q0118KE2T as active (current production).
20-VFQFN with exposed pad: layout notes
Housed in a 5.00 mm × 3.20 mm, 20-lead VFQFN with an exposed pad (0.90 mm height).