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Low power crystal oscillator having improved long term and short term stability
Low power crystal oscillator having improved long term and short term stability
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机译：具有改善的长期和短期稳定性的低功耗晶体振荡器
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摘要
An oscillator circuit having improved long term and short term phase stability. A source follower provides a signal to a bipolar transistor. The bipolar transistor is fed with a current from a current mirror which may be selectively controlled. A piezoelectric crystal and a high resistance element are connected in parallel from the collector of the bipolar transistor to the input of the source follower. The drive voltage to the piezoelectric crystal is controlled by the current mirror to improve long term frequency stability.
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