All-silicon oscillator replaces quartz-based XOs

All-silicon oscillator replaces quartz-based XOs

The high-stability CMOS-based part provides low jitter and high reliability for consumer applications

The Si500 silicon oscillator is offered as the highest-stability 100% CMOS device of its kind enabling shorter lead times, lower cost, higher reliability, and higher performance than existing quartz-based oscillators. The product family offers a period jitter of less than 0.8 ps at 100 MHz and supports frequency stability options ranging from ±100 to ±150 ppm, while providing a drop-in compatibility with quartz-based oscillators.

In addition, the device is also claimed to be the first silicon oscillator to support differential clock outputs (LVPECL, LVDS, HCSL) in addition to CMOS and SSTL formats. It also supports a dual-output CMOS-format mode in which a single device can produce two output clocks at the same frequency, eliminating the need for external clock buffers.

Because the Si500 relies on standard high-volume CMOS IC manufacturing and low-cost packaging, it is immune to the contamination issues and because it eliminates the mechanical resonator used for frequency generation, it provides high immunity to shock and vibration. The oscillator is available in either a 4- or 6-pad 3.2 x 4.0-mm DFN package. (Ea/10,000: $0.95 to $2.24 — prod qty, 4th qtr)

Silicon Laboratories , Austin , TX
Sales 512-416-8500
http://www.silabs.com