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Electronic Design

Stable TCXOs Suit Extended Duration Monitoring

Members of the ER family of temperature-compensated crystal oscillators (TCXOs) draw less than 7 mW at a 3.3-V supply voltage. Excellent time/frequency stability qualifies the TCXOs for extended duration monitoring in a wide range of ocean, terrestrial, and space environments. Thanks to their 10- to 20-MHz frequency and ultra-low phase noise, the oscillators suit telemetry and GPS position location applications. The parts permit mechanical and electrical frequency trimming of ±3 to ±4 ppm, respectively. The electrical frequency adjustment enables output frequency to track a user's reference. The oscillators maintain low jitter of −125 dBc/Hz at 1 kHz offset. They're designed for 3.3- or 5-V operation and draw less than 2 mA at 3.3 V. Measuring 11.4 by 9.6 by 2.5 mm, the ER parts are available on tape-and-reel for automated circuit board assembly. Pricing is from $4 each in OEM quantities.

MF Electronics; (800) 331-1236

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