One package, four clock trees — the BOM consolidation move
The DSC400-1111Q0084KI1 packs four independent LVCMOS clock outputs — 33.33333 MHz, 50 MHz, 125 MHz, and 100 MHz — into a single 20-VFQFN package measuring 5.00 mm x 3.20 mm. That replaces four discrete quartz cans with one MEMS-based oscillator, freeing up board area and cutting the oscillator line count from four to one.
Supply and temperature — where this oscillator lives comfortably
The supply range spans 2.25 V to 3.6 V, covering 2.5 V and 3.3 V rails without an extra regulator.
Enable/Disable pin — gating the clock without a load switch
The Enable/Disable function lets firmware shut down the outputs during sleep or system reset. That keeps the clock edges off the bus when the downstream logic is unpowered, and saves the quiescent current of four separate oscillators — no extra load-switch FET needed.
Package and rework — the exposed-pad reality
The 20-VFQFN Exposed Pad is 0.90 mm tall. The pad under the package is the ground return and the main heat path — it needs a thermal via array in the PCB to pull heat into the ground plane. Reworking this part: preheat the board to 150°C, hit the pad with hot air at 300°C for 30 seconds, and lift the part without lifting the pad. The exposed pad is large enough that a poor solder joint under it will show up as a missing clock on all four outputs.