MEMS clock for automotive and industrial boards
The DSC1123DL2-050.0000 is an active-production MEMS-based XO (Standard) from Microchip's DSC1123 series, delivering a 50 MHz LVDS clock with ±25 ppm stability across -40°C to 105°C. AEC-Q100 qualification means this oscillator has passed automotive-grade reliability stress tests — suitable for under-hood and chassis-domain ECUs that see wide temperature swings and vibration. The MEMS resonator is inherently more shock-tolerant than a quartz crystal, so the clock stays locked during high-vibration events like engine start or off-road driving.
Supply-range flexibility and output type
Operating from 2.25V to 3.63V, this oscillator can be powered directly from a 2.5V or 3.3V rail without an extra LDO — the wide range absorbs rail ripple from a switching regulator. LVDS output provides low-jitter differential signalling for high-speed interfaces like Gigabit Ethernet PHYs, FPGA reference clocks, or SerDes transceivers. The enable/disable function lets the system shut down the oscillator when the clock domain is idle, dropping supply current from 32 mA max to 22 mA max.
Package and board-fit note
Housed in a 6-SMD no-lead package measuring 2.50 mm x 2.00 mm with a seated height of 0.90 mm — a compact footprint that fits tight multilayer automotive PCBs. Surface-mount assembly with no exposed leads; the small outline means the oscillator can be placed near the processor without crowding the fan-out vias.