145.2 MHz HCSL reference — active, no LTB pressure
The DSC1104AE2-145.2000T is a MEMS-based XO delivering a 145.2 MHz HCSL output from a 2.25V to 3.6V supply rail. The HCSL (High-Speed Current Steering Logic) output is the standard for PCIe reference clocks — the differential swing and common-mode levels match the PCIe Base Spec without external level translation. Absolute Pull Range is ±25 ppm, which covers the spread-spectrum and holdover requirements for PCIe Gen1 and Gen2 reference clocks.
In active mode the oscillator draws 42 mA max at 145.2 MHz. This makes the part suitable for gated clock domains where the reference is shut down during system sleep.
Housed in a 6-VDFN exposed-pad package measuring 7.00 mm × 5.00 mm with a seated height of 0.90 mm.