| 摘要 |
A gain adjustment device and a method thereof are provided. The device includes a first processing module, a gain adjustment circuit, a second processing module, and a gain control module. The first processing module receives an input signal and generates a first signal. An operating voltage of the first processing module is a first voltage. The gain adjustment circuit receives the first signal and adjusts a gain of the first signal according to a gain control signal to output a third signal. The second processing module receives the third signal and generates a second signal. An operating voltage of the second processing module is a second voltage. The gain control module generates the gain control signal according to the first voltage and the second voltage.
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