The DSC1001DE1-037.1250 is a fixed-frequency MEMS oscillator from Microchip's DSC1001 series, delivering a 37.125 MHz CMOS output from a 1.8 V to 3.3 V supply rail.
Frequency stability and supply flexibility
For a 37.125 MHz reference, that translates to a maximum frequency error of roughly ±1.86 kHz across temperature — sufficient for HDMI, DisplayPort, or 100BASE-TX PHY clocking, but not tight enough for precision RF synthesis or test equipment where ±25 ppm or better is typical. The 1.8 V–3.3 V supply range means the same part can be dropped onto a 1.8 V core rail, a 2.5 V I/O bank, or a 3.3 V peripheral bus without a separate voltage variant.
Package and mounting footprint
Housed in a 4-SMD, no-lead package measuring 2.50 mm × 2.00 mm with a seated height of 0.90 mm. The 0.098" × 0.079" footprint is common among MEMS oscillators and matches the standard 2.5×2.0 mm XO land pattern — no board respin if swapping from a quartz oscillator of the same size.
The DSC1001 series has multiple frequency variants and the same package pinout — a BOM change to a different frequency within the family requires only a new order code, not a board layout change.