MEMS clock source with dual-frequency output
The DSC6121CI2A-00AK: The MEMS resonator gives this oscillator inherent advantages over quartz: better shock and vibration tolerance per MIL-STD-883, faster start-up time, and no quartz cold-start frequency overshoot — relevant for equipment that powers up and down repeatedly in factory-floor or outdoor enclosures.
Maximum current draw is 3 mA typical, which keeps the thermal contribution negligible in a dense layout and suits battery-powered or thermally constrained designs where every milliamp is budgeted.
Frequency stability and temperature grade
The industrial temperature grade means it can sit in an unventilated control cabinet or an outdoor telecom enclosure that sees summer heat and winter cold — the MEMS die itself is rated beyond this window, but the package and test guardband are certified to the stated limits.
Sourcing reality: obsolete, no official successor
Each lot is traceable and verified; quantities are confirmed at quote time against the specific requirement.