LTC1799 Oscillator

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LTC1799 Datasheet and Product Info | Analog Devices

The LTC1799 is a precision oscillator that is easy to use and occupies very little PC board space. The oscillator frequency is programmed by a single external resistor (RSET). The LTC1799 has been designed for high accuracy operation (≤1.5% frequency error) without the need for external trim...

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Interesting possibilities for radio applications.

 

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I wonder if an LDR could be added to make use of this chip in a PLL application?
But they seem to be bit too expensive to me. The best price a quick search revealed was over $6 each.