HCSL output for PCIe reference clocks
The DSC8104AI5 outputs HCSL (High-Speed Current Steering Logic), the differential signalling standard for PCIe reference clocks. HCSL swings 700-900 mV peak-to-peak into a 50-ohm termination to ground, which means the oscillator drives the PCIe clock tree directly without a level translator. The available frequency range of 10 MHz to 460 MHz covers PCIe Gen 1 through Gen 4 reference clock requirements (100 MHz nominal) and most Ethernet SerDes reference frequencies up to 312.5 MHz. Total frequency stability of ±10 ppm keeps the accumulated jitter within the PCIe Base Spec timing budget for Gen 3 and below; for Gen 4 designs the system PLL absorbs the remaining wander.
MEMS resonator vs quartz trade-offs
The blank (user-programmable) variant means the factory programs the output frequency per the order code — the buyer specifies the frequency at order time, and the device ships pre-configured. No field programming is possible.
Automotive-grade operating envelope
The MEMS die and ASIC are qualified to the AEC-Q100 stress tests including pre-conditioning, temperature cycling, and HAST. Maximum supply current is 42 mA across the full frequency range and temperature span.
Surface-mount mounting; the tube packaging (50 per tube) is standard for pick-and-place feeders. No special moisture sensitivity level is stated — treat as MSL 1 unless the reel label indicates otherwise.