Dual video-frequency outputs in a MEMS XO
The DSC400-3333Q0089KE1 is a MEMS-based XO (standard) that delivers two LVDS clock outputs at 148.35 MHz and 148.5 MHz — the exact frequencies needed for 1080p/59.94 and 1080p/60 broadcast video frame rates. A single 20-VFQFN package replaces two discrete quartz oscillators, saving board space and reducing BOM count.
The 20-VFQFN with exposed pad is a 5.00 mm × 3.20 mm package, 0.90 mm tall. The thermal pad on the underside needs a soldered via array to the ground plane for proper heat sinking — without it, the part drifts frequency under load. The exposed pad also makes hand rework straightforward: preheat the board from below, hit the pad with hot air, and lift the part without lifting the pads.