The DSC1123DI2-156.2500T is a 156.25 MHz LVDS oscillator from Microchip's DSC1123 MEMS family, qualified to AEC-Q100 for automotive deployment. The 156.25 MHz frequency is a common reference for 10 Gigabit Ethernet, Fibre Channel, and video SerDes — the LVDS output keeps the signal swing small and the edge rate controlled, which matters for signal integrity over short PCB traces to the PHY or FPGA. Supply voltage spans 2.25 V to 3.63 V, so it runs off a 3.3 V or 2.5 V rail without a separate regulator.
Automotive temperature range and MEMS reliability
For a BOM that already carries AEC-Q passives and MCUs, this clock matches the reliability target without a waiver.
Package and footprint for pick-and-place
The 6-SMD no-lead package (2.50 mm x 2.00 mm x 0.90 mm) is a standard MEMS oscillator footprint. The 0.90 mm seated height keeps it under low-profile heatsinks or enclosure lids. Cut-tape or small quantities are available through independent distribution; confirm the break-pack fee at RFQ.