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VOLUME -24 NUMBER 2
Publication Date: 02/1/2009
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Special Feature: Components & Distribution
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February 2009 Issue
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Epson Toyocom Intros TCXO for GPS
El Segundo, CA — Epson Toyocom Corporation's U.S.-based Timing Products Division has introduced its new frequency-stable TCXO (temperature-compensated crystal oscillator) with frequency stability high enough for demanding GPS applications. The new TG-5025BA oscillator is housed in a 2016-sized package (the world's smallest package category) measuring 2.1 x 1.7mm.
The burgeoning market for GPS has been inflated by growing numbers cell phones with built-in GPS functions which allow their location to be pinpointed in the case of emergency calls. The expansion of the market for personal navigation devices (PND) and other navigation systems is also driving demand for frequency-stable TCXOs, which are essential for accurate positioning. Mobile GPS devices, such as these, will be packing more features in increasingly dense assemblies and this trend is expected to drive market demand for high-stability TCXOs, especially small units. The TG-5025BA is a 2016-class TCXO that offers outstanding frequency stability. It is equipped with a photo AT chip, a very small, crystal chip microfabricated using the company's unusual QMEMS technology. In addition to minimal variability of characteristics, the new oscillator promises high reliability because of the use of internal wire bonding and the company's original NPO (New Platform Oscillator) structure.
In the NPO structure the crystal unit, encased in a ceramic package, is sealed together with an oscillation circuit in a molded plastic housing. This structure reduces the susceptibility of frequency to changes in ambient temperature. The TXCO provides precise temperature compensation, low power consumption since driving is performed at voltages as low as 1.68V, and a wide output frequency range of 13 to 52MHz.
According to the company, the device is the world's smallest class of package for a footprint 36 percent smaller and a cubic volume 46 percent smaller than its predecessor. Frequency stability is on a par with that of its predecessor.
Contact: Epson Electronics America, Inc., 1960 East Grand Avenue Flr.2 El Segundo, CA 90245
800-249-7730 fax: 310-955-5400 Web:
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