Dual-frequency MEMS oscillator for tight-timing applications
The DSC2311KL2-R0040 is a MEMS-based XO (Standard) that outputs two independent CMOS clocks: 40 MHz on output 1 and 20 MHz on output 2. This eliminates a second oscillator footprint and the associated routing complexity. That stability holds without external load capacitors — the MEMS resonator and PLL are self-contained. Supply voltage spans 2.25 V to 3.6 V, covering common 2.5 V and 3.3 V rails.
Package and board-fit notes for the 6-VDFN
Housed in a 6-VDFN measuring 2.50 mm x 2.00 mm with a seated height of 0.90 mm. The MEMS die eliminates the quartz crystal's mechanical resonance — no startup reliability concerns from shock or vibration. The Enable/Disable pin allows the oscillator to be tri-stated for system test or power sequencing.
Lifecycle status is Active — no EOL, no NRND notice. Microchip lists no direct pin-compatible second source, but the DSC2311 family includes multiple frequency and stability variants sharing the same 6-VDFN footprint.