What this MEMS oscillator replaces in an automotive BOM
The DSC1001DI1-050.0000B is a 50 MHz XO (Standard) oscillator built on a MEMS resonator rather than a quartz crystal — the MEMS die is sealed in a standard 4-SMD, No Lead package that reflows on the same footprint as a quartz oscillator. The CMOS output swings rail-to-rail across the full 1.8V to 3.3V supply range, so a single order code covers 1.8V, 2.5V, and 3.3V logic rails without a separate voltage variant.
Supply voltage range is 1.8V to 3.3V — the oscillator operates across that entire window without adjustment, which simplifies BOM consolidation when the same design uses multiple core voltages. The standby (power-down) function disables the output and drops current consumption to 15µA max, compared to 7.2mA max when active — useful for battery-powered modules that need to wake the clock only during transmission.
Package footprint and board layout
The 4-SMD, No Lead package measures 2.50mm x 2.00mm with a seated height of 0.90mm — a compact footprint that fits under a metal shield or on a dense automotive ECU board.