Exar Introduces Ultra-Low Jitter Programmable Clock

15 SEPTEMBER 2014

Exar Corporation announced an addition to its family of universal clock products. The XR81112 series offers output frequencies from 10MHz to 1.5GHz with ultra-low phase

noise jitter of less than 200fs that makes them ideal for demanding communications, audio / video, and industrial applications. The tiny 3×3mm QFN-12 packaged devices are the smallest on the market with this broad feature set.
The XR81112 clock synthesizer utilizes a flexible delta-sigma modulator and a very wide-ranging VCO in a PLL block that has been optimized to be extremely power efficient. With a core current consumption of just 20mA, these parts dissipate 60% less power than equivalent competitive devices, providing a compelling power efficiency benefit to system designers. The PLL can operate from either an input system clock or a crystal, and incorporates both an integer divider and a high-resolution (<1Hz) fractional divider for increased flexibility to generate any clock frequency. Exar
www.exar.com

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