| 摘要 |
Circuits and methods for controlling the amplitude of oscillation of a crystal. In one example, a circuit may include a peak detector; a first voltage-to-current converter; a first current-to-voltage converter coupled with the first voltage-to-current converter; a second voltage-to-current converter; a second current-to-voltage converter coupled with the second voltage-to-current converter; and a differential amplifier; wherein a ratio between a size of first voltage-to-current converter and a size of the second voltage-to-current converter is used to control the gain of the circuit.
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