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Temperature oscillators tolerate -40C to 85C range

Posted: 19 Apr 2012 ?? ?Print Version ?Bookmark and Share

Keywords:crystal oscillator? broadband access? low phase jitter?

Fox Electronics has extended its XpressO configurable crystal oscillator portfolio with an extended temperature version of its 3.3V HCMOS oscillator. Part of the FXO-HC33 series, the oscillator can withstand temperatures from -40C to 85C, while delivering tight stabilities down to 50ppm, noted the company.

According to the company, the oscillator meets the demanding conditions of in-the-field applications including direct sunlight and mounting on ground, sea and air vehicles as well as in remote, inaccessible locations where human safety is a concern. Typical uses of the new oscillator include SONET, Ethernet, broadband access and Fiber Channel as well as in test and measurement equipment.


The XpressO oscillators feature 0.75-250MHz frequency range.

The frequency range for the extended temperature XpressO oscillators is 0.75-250MHz with extremely low phase jitter down to 0.8pS RMS, depending on the frequency, described the company. The FXO-HC33 oscillators offer an industry standard pin-out in a 3.2 x 2.5 x 1mm footprint. The RoHS and REACH compliant components use gold over nickel termination finish.

All XpressO oscillators incorporate a unique serial ID for each individual part that enables Fox to track product manufacturing from raw materials through final testing for increased quality control.

XpressO oscillators use a proprietary ASIC family, developed by Fox, with a 3rd order Delta Sigma Modulator (DSM) to significantly reduce noise to levels comparable with traditional bulk quartz and SAW oscillators. The ASIC family enables the selection of output type, input voltages and temperature performance within the oscillator.

Pricing for an extended temperature FXO-HC335R-25MHz is $0.55 in quantities of 10K pieces. Delivery is 10 Days ARO.

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