Silicon Oscillator Promises 99.91-Percent Accuracy

Feb. 26, 2009
Among the plethora of devices available from distributor Digi-Key is the LTC6930 family of low-power precision silicon oscillators. These devices feature fixed frequencies from 32.768 kHz to 8.192 MHz. Drawing only 105 uA at 32 kHz and requiring one ...

Among the plethora of devices available from distributor Digi-Key is the LTC6930 family of low-power precision silicon oscillators. These devices feature fixed frequencies from 32.768 kHz to 8.192 MHz. Drawing only 105 uA at 32 kHz and requiring one 1.7-to-5.5-V supply, the LTC6930 can operate from two unregulated nickel-cadmium batteries. While most oscillators exhibit a startup time greater than 1 ms, the LTC6930 guarantees a startup time of less than 110 s. Five versions are available. Each one has a unique master frequency as well as digitally controlled frequency dividers that give eight different frequencies per device. Frequency shifting is accomplished within a single clock cycle and without glitches. The 0.09-percent frequency tolerance makes the LTC6930 suitable for many applications including serial port communications and microprocessor clocks. P&A: available now.

About the Author

Nancy Friedrich | Editor-in-Chief

Nancy Friedrich began her career in technical publishing in 1998. After a stint with sister publication Electronic Design as Chief Copy Editor, Nancy worked as Managing Editor of Embedded Systems Development. She then became a Technology Editor at Wireless Systems Design, an offshoot of Microwaves & RF. Nancy has called the microwave space “home” since 2005.

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