147.456 MHz HCSL MEMS oscillator for high-speed clocking
The DSC1104DI5-147.4560T is a MEMS-based XO (Standard) delivering a 147.456 MHz HCSL output — the precise frequency and signal type needed for PCIe Gen1/2/3 reference clocks, 10GbE SerDes, and FPGA transceiver reference inputs. HCSL (High-Speed Current Steering Logic) swings 700–800 mVpp differential into 50 Ω to ground, which matches the input requirements of most high-speed clock receivers without external termination to a bias voltage.
The supply voltage range of 2.25V to 3.6V lets this oscillator run from a 2.5V or 3.3V rail without an extra LDO — useful when the clock domain shares a power plane with the FPGA bank voltage.
Active production — sourcing via independent distribution
Microchip lists the DSC1104DI5-147.4560T as Active.
Housed in a 6-SMD, No Lead package measuring 2.50 mm × 2.00 mm with a seated height of 0.90 mm, this oscillator fits into compact line cards, small-form-factor NICs, and optical transceiver modules where board real estate is tight. The 6-pin footprint is standard for MEMS oscillators in this form factor; the no-lead design reduces parasitic inductance compared to a leaded package.