MSC Offers MEMS-Based Programmable Clock Generator

The SiT9105 from Sitime is said to be the first MEMS-based programmable clock generator that combines LVCMOS and differential outputs in a single package, reducing board area by up to 66 per cent. The SiT9105 can generate up to three unrelated frequencies. This includes two frequencies on single-ended outputs (up to two copies of each frequency) and one on the differential output.

The device support LVDS, LVPECL or HCSL signalling levels. The SiT9105 can be programmed to generate any frequency outputs from 1 to 220MHz with five decimal places of accuracy. The frequency stability is as low as +/-25PPM. The SiT9105 operates from 1.8, 2.5 or 3.3V. Each output can operate off a different voltage, eliminating the need for external level translators. By combining resonator, multiple timing components and as single-ended and differential outputs on a single chip, the SiT9105 ensures high reliability and economic efficiency.

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