Why choose a MEMS oscillator over a quartz crystal for automotive clocking
±25 ppm frequency stability over the full temperature range means a 48 MHz clock drifts no more than 1.2 kHz — tight enough for CAN-FD (up to 8 Mbps) and 100BASE-T1 Ethernet where the PHY's PLL needs a reference within ±50 ppm including aging. The 1.8V to 3.3V supply range lets you run the oscillator from the same rail as the MCU or transceiver without a separate LDO — the 7.2 mA max supply current at 48 MHz is low enough that the rail budget is set by the load, not the oscillator.
Standby function — gating the clock in low-power modes
Package and footprint — board-level fit
The 4-SMD, No Lead Exposed Pad package measures 7.00 mm x 5.00 mm with a seated height of 0.90 mm — the same footprint as standard 7x5 mm quartz oscillators, so it drops onto existing PCB layouts without a spin.