MIAMI Raltron Electronics Corp.'s Model RTVY-174 temperature-compensated oscillator incorporates a custom IC, making the component smaller than it would have been if a a hybrid had been used. The 6- x 3.5-mm footprint is aimed at mobile applications, such as cell phones, pagers and two-way radios.
The oscillator is powered by a single 3-V supply and is said to offer plus/minus 2.5-ppm stability over a standard temperature range of -30 degrees C to +80 degrees C. Current drain is 2 mA maximum. Output voltage is 0.9 V peak-to-peak minimum, with a clipped sine wave, capable of driving a 10-kilohm load shunted by 10 pF.
The unit is available in standard frequencies from 12.6 to 19.8 MHz. An external control-voltage feature pulls the output frequency over a range of up to plus/minus 12 ppm in response to a plus/minus 1-V input signal, centered at 1.5 V. That feature helps modulate the output frequency, set it to a precise offset or compensate for any drift with aging, according to Raltron.
The surface-mount device sells for less than $5.95 in 10,000-piece lots. Delivery is eight to 10 weeks.
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EETInfo No. 609