Four 125 MHz LVDS outputs from a MEMS resonator
Frequency stability is held to ±50 ppm across the full -20°C to 70°C commercial range, which keeps the clock edge jitter within the setup/hold budget of a 10/100/1000 Ethernet PHY or a DDR3 memory controller without external re-timing.
Housed in a 20-VFQFN with exposed pad, the 5.00 mm x 3.20 mm footprint is a common clock-generator land pattern. Supply voltage spans 2.25 V to 3.6 V, so the same BOM line works across a 2.5 V FPGA bank and a 3.3 V ASIC clock input without a separate level translator. The 0.90 mm seated height clears the 1.0 mm keep-out zone under a mezzanine card — a detail that matters when the oscillator sits on the bottom side of a dense backplane board.
Product status is Active per Microchip's current portfolio. The DSC400 series is the MEMS-based replacement for the older quartz DSC1001/DSC2001 families. If your BOM currently carries a 125 MHz LVDS quartz oscillator in a 7.0 mm x 5.0 mm package, the DSC400-3333Q0078KE1T shrinks the footprint by 55 % and removes the external load capacitors.