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Low-jitter oscillator generates any frequency from 10 MHz to 1.4 GHz

Austin, Tex. — Silicon Laboratories Inc. says its Si570/1 family is the industry's first user-programmable crystal oscillators (XO) and voltage-controlled crystal oscillators (VCXO) that support any-rate frequency synthesis. Using the company's DSPLL technology and an industry-standard I2C interface, a single device can generate any output frequency from 10 MHz to 1.4 GHz at jitter levels of 0.3 picoseconds rms.

Reprogrammable for an unlimited number of times, the Si570 Any-Rate XO and Si571 Any-Rate VCXO are suitable for high-performance applications requiring frequency flexible clock sources including next-generation networking equipment, wireless base stations, test and measurement equipment, HDTV video infrastructure and high-speed data acquisition equipment.

The Si570/1 devices are available in an industry standard, RoHS-compliant 5 x 7 mm surface-mount package with support for all common output formats (LVPECL, LVDS, CMOS and CML). The family offers three speed grades: 10 MHz to 1.4 GHz, 10 MHz to 810 MHz and 10 MHz to 215 MHz. The Si570 Any-Rate XO is available with two temperature stability options, &plumn;20 ppm and ±50 ppm. The Si571 Any-Rate VCXO has a wide selection of absolute pull range (APR) options ranging from ±12 ppm to ±375 ppm. The Si570/1 devices support operation from -40° to +85°C.

Pricing: The Si570 is priced from $10.02 to $54.79 in quantities of 1,000 depending on speed grade and temperature stability. The Si571 is priced from $23.39 to $122.76 in quantities of 1,000 depending on speed grade and temperature stability.
Availability: Both devices are available now.
Product information: timing products

Silicon Laboratories Inc. , 1-512-416-8500, www.silabs.com

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