MEMS oscillator with LVPECL output for automotive clock trees
The DSC8102BI2-PROGRAMMABLE: The LVPECL swing (typically 800 mV peak-to-peak into 50 Ω to VCC-2V) drives long PCB traces with low jitter, suiting it as a reference clock for high-speed SerDes, Ethernet PHYs, or FPGAs in automotive gateways.
Total frequency stability is ±25 ppm, covering temperature, supply, and aging. For a 100 MHz reference clock this translates to ±2.5 kHz maximum frequency error — well within the capture range of most PLL-based clock receivers in automotive SerDes links.
Package and board integration
The LVPECL output requires AC-coupled termination (50 Ω to VCC-2V) at the receiver — the two output pins (Q and Q#) carry the differential pair. Surface-mount assembly with a standard reflow profile for lead-free solder. The MEMS die is hermetically sealed at the wafer level, so no moisture sensitivity level (MSL) derating beyond the package's own rating — check the specific MSL on the reel label for bake requirements before rework.
No direct pin-compatible second-source is listed from other manufacturers, but the DSC8102 series shares the same footprint and function as other 5x3.2 mm MEMS oscillators — verify the output type (LVPECL) and supply range match before substituting.