Four LVDS outputs from a single MEMS resonator
The DSC400-3333Q0104KI1 is a MEMS-based XO (Standard) oscillator delivering four independent LVDS clock outputs at 125 MHz, 100 MHz, 200 MHz, and 156.25 MHz from a single 20-VFQFN package with exposed pad.
The 20-VFQFN exposed-pad package (5.00 mm x 3.20 mm, 0.90 mm height) requires a thermal via array under the pad for heat sinking — the board layout must allocate this area even if the oscillator draws only a few mA, because the MEMS die's self-heating shifts the output frequency slightly without a good thermal path. Supply voltage tolerance is 2.25 V to 3.6 V, so the oscillator runs from a 2.5 V or 3.3 V rail without an extra LDO — check that the rail ripple stays below the PSRR floor at the output frequencies.
Active production — no last-time-buy concern
The base product number DSC400 covers a family of quad-output MEMS oscillators; the suffix Q0104KI1 encodes the specific output frequency set and stability grade.