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A crystal oscillator with amplitude adjustment

  • 2013-09-22
  • 918.83KB
  • Points it Requires : 1

A crystal oscillator with amplitude control is designed for a 32 768 Hz real-time clock. The amplitude regulation loop adopts a source grounded oscillator to obtain high frequency stability and low power consumption. The use of MOS tube resistors effectively reduces the layout area. The circuit is implemented in a 0.35 μm, 5 V CMOS process, and the simulation and test results can meet the design requirements.

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