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SAW oscillator tuned to optical switching

Posted: 23 Oct 2002 ?? ?Print Version ?Bookmark and Share

Keywords:saronix llc? s3539? saw oscillator? network saw oscillator? gbe saw oscillator?

Optimized for switching equipment in metro-area and long-haul optical networks, the S3569 voltage-controlled, surface-mount SAW oscillator from SaRonix LLC produces a low-voltage PECL output over the frequency range of 622.08MHz to 670MHz for SONET/SDH OC-48/192, DWDM, and 10GbE applications.

The device uses a SAW resonator to produce the frequency range without multiplication circuitry, thus minimizing jitter, the company said.

Available in a shielded, leadless FR4 SO20, 9-by-14mm package, the S3569 offers jitter <1ps (1-sigma rms, 12kHz to 40MHz band) over an extended operating temperature range of -40C to 85C. It achieves a minimum absolute pull of 50ppm, includes 3.3V LV-PECL-compatible differential outputs, and uses <100mA of supply current. Six gold-plated true SMD contact pads simplify solderability.

"The low, 1ps maximum phase jitter characteristic enables the output frequency to be used directly in 10GbE over SONET/SDH OC-12 applications and helps to preserve optimum bit error rate performance when stepping up to OC-48/192 or even OC-768 frequencies," said Brandon Ogilvie, manager of marketing at SaRonix.

The S3569 oscillator is compatible with standard reflow and washing techniques and is available in tape-and-reel packaging in 500-piece increments. Prices start at <$45 each, in quantities of 1,000, depending on specifications. Lead times range from stock to 12 weeks.

EE Times

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