Temperature stability and operating envelope
The DSC6021CI2A-009YT: This is tight enough for a 27 MHz reference feeding a microcontroller PLL without the clock jitter smearing the ADC sample window — the phase-noise plot from the MEMS resonator is typically cleaner than a comparable quartz XO in the same footprint. Layout reuse between frequency variants is straightforward — the same copper pad and decoupling capacitor placement serves any dual-output member in the series.
Obsolete — sourcing through independent channels
For new designs, evaluate a current-production dual-output MEMS XO from the same DSC60XX family with matching package and supply range.