Crystal oscillator circuit
A crystal oscillator and oscillator technology, applied in electrical components, generator start-up, automatic power control and other directions, can solve the problems of weak driving ability, limited application scenarios, low technical difficulty, etc. Gain control, wide application scenarios, strong driving ability
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[0044] figure 1 A schematic circuit diagram of a crystal oscillator circuit according to the present invention is shown. figure 2 A complete circuit structure diagram of a crystal oscillator circuit and an external crystal oscillator according to the present invention is shown. image 3 It shows the internal signal waveform when the crystal oscillator of a crystal oscillator circuit according to the present invention is working.
[0045] to combine figure 1 , figure 2 and image 3 As shown, the crystal oscillator circuit includes: an oscillator drive module 102, a first-order filter module 104, and an amplitude detection and current bias adjustment module 106; The connection terminal is connected to drive the crystal oscillator; the first-order filter module 104 is connected to the oscillator drive module 106, and is used to filter out the AC signal at the first connection terminal of the crystal oscillator; the amplitude detection and current bias adjustment module 106 ...
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