50 MHz LVPECL clock source for timing-critical boards
The DSC1122BE2-050.0000 is a MEMS-based XO (Standard) from Microchip's DSC1122 series, delivering a 50 MHz LVPECL output with ±25 ppm frequency stability across -20°C to 70°C. The LVPECL signalling provides the fast edge rates and low jitter needed for high-speed SERDES, FPGA reference clocks, and 10/100/1000 Ethernet PHY timing where single-ended CMOS would introduce too much noise.
MEMS resonator advantages over quartz
No last-time-buy window or successor part number has been announced.