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XO solutions deliver frequencies up to 840MHz

07 May 2014

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Micrel Inc. introduced the MX55/57 Fusion, crystal oscillator clock (XO) solutions, which offer phase jitter performance of 170fsrms (12kHz to 20MHz). These XOs target a broad range of frequencies up to 840MHz and support standard frequencies for applications including 10/40/100G Ethernet, optical communications, SAS, and PCI express.

All options are available in volume quantities and short lead times, with pricing below $10 for 1,000 quantities for most configurations.

"The MX55/57 family is designed to maximise performance in networking, storage, server, and telecommunications equipment," noted Rami Kanama, VP for timing and communications business group at Micrel. "The ultra-low jitter improves design margins, enhances signal-to-noise-ratios, and helps minimise bit error rates."

The MX55/57 family offers a compelling high power supply noise immunity enabled by on-chip linear regulators that improve overall performance in noisy environments. The devices support 3.3V or 2.5V supply and LVPECL, LVDS, CMOS, and HCSL output logic formats. These devices meet +50ppm total stability including ageing and temperature drift across a -40°C to +85°C operating temperature range.

The use of a proven plastic moulded assembly improves long term reliability and minimises ageing drift compared to traditional XO devices. Finally, all options are available in a compact 3.2mm x 5mm package for the MX55 product family that reduces costly board space. The MX57 family of solutions comes in an easy-to-design 5mm x 7mm package option.




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