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July 13, 2005
WTC705A Series
New 5.0 7.0 mm "true" Stratum 3 TCXO generation.

We are pleased to announce that Wintron is ready for mass-market sampling of the WTC705A series of TCXOs for use in Telecom, Wireless and Data Communications applications.

Utilizing a new generation of TCXO ICs, the WTC705A Series can stabilise the frequency from 6.4 MHz up to 55 MHz over a wide temperature range of -40C to +85C to better than 0.18 ppm. The parts are fully compliant to the GR1244-Core and GR- 253-Core standard. As well as the superb temperature stability and performance there are two enclosure technology advantages over ceramic 5x7 parts.
  • Expansion coefficient:
    The WTC705A is based on well proven FR4 enclosure technology and has the same coefficient of expansion as the customer's PC board. Solder joints fatigue failure will not occur anymore.

  • Flexibility:
    By using FR4 materials the design work is more flexible with the design of the oscillator circuit and the realisation of all established pin-outs.
With the "wide pull version" of the WTC705A family it is possible to realize a pull range of +/- 40 ppm and more. As a result of the flexible construction and the new IC technology, it is now possible to design-in 5x7 TCXOs with a better Phase-noise performance which in earlier days was only possible with large, expensive, discrete solutions.

Because of highly automated modern manufacturing practice, the WTC705A Series combines excellent technical performance with a favourable price.

Samples of 12.8 MHz and 20 MHz for the two most important SONET/SDH IC solutions from Semtech and Zarlink are available from stock.

Wintron International is a world leader in the design, manufacture and marketing of Frequency Control, Sensor, and Hybrid Product solutions using the very latest techniques in both bulk acoustic wave (BAW) and surface acoustic wave (SAW) based designs from DC to microwave frequencies. Products include crystals and crystal oscillators; frequency translators; clock and data recovery products and SAW filters and components used in telecommunications, data communications, frequency synthesizers, timing, navigation, military/space and instrumentation systems.
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