Raltron oscillators allow user selection of frequency

AUGUST 5, 2009 -- Raltron Electronics (search Lightwave for Raltron Electronics) has introduced two new families of products allowing for user selection of frequencies from either a clock or voltage-controlled crystal oscillator (VCXO).

Within a frequency range from 10-1,200 MHz, both new CSMF and VSMF series are based on an advanced digital phase-locked loop (PLL) platform that can be preprogrammed for up to two different output frequencies. The company touts this flexibility as reducing design and turnaround costs.

Both series incorporate a low-frequency crystal with low jitter synthesis to provide a wide range of frequencies. Both the CSMF clock and VSMF voltage-controlled units are available in LVCMS, LVPECL, and LVDS output formats, making the VSMF suitable for SONET/SDH, Gigabit Ethernet (GbE), clock/data recovery, and DSL with the CSMF units also finding use in Fibre Channel applications.

Operating voltage for both the CSMF clocks and VSMF voltage-controlled units are from 2.5-3.3 V at 35-45 mA within their frequency range of 10-1,200 MHz, with RMS phase jitter at 0.8 ps typical within an operating temperature range from -40° to +85°C. Units are supplied in a 5X7-mm ceramic package.

The dual-frequency oscillators are available within four weeks for sampling requirements with production quantities at 6-8 weeks ARO.

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