MEMS oscillator for 156.25 MHz LVPECL clock trees
Package, footprint, and rework considerations
Housed in a 6-SMD, no-lead package measuring 2.50 mm x 2.00 mm with a seated height of 0.90 mm. The no-lead land pattern means the pads are flush with the package body — rework with hot air is straightforward if you pre-tin the board pads and align by the package outline. The 2.25-3.6 V supply range covers 2.5 V and 3.3 V rails without a separate regulator. The LVPECL output is DC-coupled to the receiver; the termination resistors sit close to the load to keep the signal edge clean at 156.25 MHz. Frequency stability is ±50 ppm — enough for 10GBASE-KR and common SerDes reference clocks.
The base product number DSC1102 covers a family of LVPECL frequencies; the suffix DI1-156.2500 locks the frequency and the Standby function.