148.3516 MHz MEMS XO with HCSL output
The DSC1124BI5-148.3516T: HCSL is the differential signalling standard used in PCI Express reference clocks — the 148.3516 MHz frequency aligns with a common SerDes or Ethernet PHY reference, not a generic logic clock.
Package and board-fit note
The 6-pad land pattern is standard for MEMS oscillators in this footprint — the supply decoupling caps sit close to the VDD pin, and the HCSL output pair (CLK_P, CLK_N) routes as a 100-ohm differential pair on the PCB.