156.2578 MHz LVPECL clock source for high-speed interfaces
The DSC1122CI5-156.2578 is a MEMS-based XO (Standard) delivering a 156.2578 MHz LVPECL output — a common reference frequency for 10GbE, Fibre Channel, and SERDES transceivers that require a differential clock with tight jitter margins. Supply voltage spans 2.25V to 3.6V, allowing the oscillator to share a 2.5V or 3.3V rail without an additional LDO.
Active production — no design-in deadline
Product status is Active per Microchip's current lifecycle designation.
Package and supply rail fit
Housed in a 6-SMD, no-lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm — a standard footprint that matches many 3.2 x 2.5 mm XO pinouts.