| 摘要 |
A power amplifier module is provided to prevent internal circuits thereof from being damaged by differentially controlling the operation of a driving amplifying unit. A power amplifier module includes a driving amplifying unit(115), a power amplifying unit(125), and a driving amplification adjusting circuit(110). The driving amplifying unit adjusts the gain of an output signal. The power amplifying unit amplifies the power of the gain-adjusted output signal. The driving amplification adjusting circuit has a first resistor and a second resistor. The first resistor is coupled between a reference voltage terminal and an input terminal of the amplifying unit. The second resistor is coupled between a ground and the input terminal of the amplifying unit. The driving amplifying circuit has a first inductor between the second resistor and the ground. The first inductor isolates the current of a reflective component. |
