Four-output MEMS oscillator for industrial clock trees
The DSC400-3331Q0098KI2 is a MEMS-based XO that delivers four independent clock outputs from a single 5.0×3.2 mm package — 12 MHz on output 1 and 50 MHz on outputs 2, 3, and 4 — eliminating the need for multiple oscillators or a separate fanout buffer on the board. Each output can be configured as LVCMOS or LVDS, giving the layout engineer flexibility to drive both single-ended logic and differential pairs from the same device. The enable/disable function lets firmware bring unused output domains into high-Z during sleep modes, cutting system power without a dedicated load switch.
±25 ppm stability across industrial temperature range
Frequency stability is rated at ±25 ppm over the full -40 to 85°C industrial temperature range — tight enough for a 12 MHz reference feeding an Ethernet PHY or a 50 MHz clock for a high-speed ADC without external trimming.
Wide supply range simplifies rail selection
Operating from 2.25 V to 3.6 V, this oscillator can run directly off a 2.5 V or 3.3 V rail without an intermediate LDO — one less part to qualify and one less dropout voltage to budget.
The 20-VFQFN exposed-pad package (5.0×3.2 mm, 0.90 mm height) is a standard footprint; the thermal pad should be soldered to a ground plane for heat sinking, especially if all four outputs are driving 50 MHz into capacitive loads.