145.2 MHz MEMS XO — industrial-grade CMOS clock
Microchip DSC1101BI1-145.2000T is a MEMS-based standard oscillator (XO) delivering a 145.2 MHz CMOS output from a 6-VDFN package measuring 5.0 × 3.2 mm. The ±50 ppm frequency stability covers most Ethernet PHY and USB controller reference-clock requirements, though not precision timing protocols like IEEE 1588.
Supply range and standby power-down
Operates from 2.25 V to 3.6 V — covers 2.5 V and 3.3 V logic rails without a separate LDO, simplifying the power tree. Active current draw is 35 mA max at full 145.2 MHz operation — budget this into the 3.3 V rail capacity.
Listed as Active by Microchip — no PCN or last-time-buy horizon. Can be designed in today and sourced for production without LTB planning.