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Silicon Laboratories Inc. entered the frequency control market with the Si530 and Si550 families of oscillators (XOs) and voltage-controlled oscillators (VCXOs) for applications up to 1.4 GHz. These product families include what is claimed to be the industry's first quad-frequency XO and VCXO devices. Both the Si550 and Si530 families are suitable for applications such as networking equipment, base stations, test and measurement equipment, storage area networks and video systems.



With optimized DSPLL technology, Silicon Laboratories is able to move frequency control and tuning from a complex resonator to a single CMOS IC, enabling the Si530 and Si550 families to deliver total frequency stability over time and temperature that is more than two times better than traditional high-frequency, low-jitter oscillators. DSPLL-based frequency tuning also enables up to a tenfold improvement in initial frequency accuracy when compared to designs based on traditional high-frequency SAW or crystal resonators.



A new class of XO and VCXO devices, the Si530 and Si550 families leverage the frequency synthesis capability of a mixed-signal IC to eliminate complex materials processing steps required to frequency tune traditional SAW and crystal-based implementations. This simplifies the manufacturing process and significantly reduces traditional lead-times from eight weeks to only one week.



Both XO and VCXO product families support operation over a frequency range from 10 MHz to 1.4 GHz with < 0.3 ps RMS jitter. The Si530 and Si550 families also offer significantly improved control voltage linearity while providing a wide selection of voltage gain and pull range options giving more flexibility to a designer when choosing the best device for the application.



The Si530 and Si550 devices are available in an industry standard, RoHS-compliant, 7 x 5 mm surface-mount package with support of all common output formats: PECL, LVDS, CMOS and CML. The Si530 and Si550 are sampling now with production scheduled for the fourth quarter. Depending on the feature set, the pricing for the Si530 and Si550 families ranges from $6.05 to $88.95 in quantities of 1,000.



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