Amplification circuit and control method thereof

An amplification circuit, comprising:

• an input terminal configured to receive an input signal;
• an output terminal configured to output an output signal corresponding to the input signal;
• a first path circuit comprising:
• a co-design circuit comprising:
• a first terminal coupled to the input terminal;
• a second terminal;
• and
• a first matching element comprising a first terminal coupled to the first terminal of the co-design circuit, and a second terminal coupled to the second terminal of the co-design circuit;
• an amplifier circuit configured to amplify the input signal, the amplifier circuit comprising a first terminal coupled to the second terminal of the co-design circuit, and a second terminal coupled to the output terminal;
• a second matching element comprising a first terminal coupled to the first terminal of the amplifier circuit, and a second terminal coupled to a reference voltage terminal;
• and
• an electrical overstress circuit comprising a first terminal coupled between the second terminal of the co-design circuit and the first terminal of the amplifier circuit, and a second terminal coupled to the reference voltage terminal, wherein the first terminal of the electrical overstress circuit is coupled between the second terminal of the co-design circuit and the first terminal of the second matching element;
• and
• a second path circuit comprising a first terminal coupled to the input terminal, and a second terminal coupled to the output terminal;
• wherein the co-design circuit provides a first impedance in a first mode, and the co-design circuit provides a second impedance in a second mode.