Method for performing common mode voltage re-biasing in analog front-end circuit of receiver, associated common mode voltage re-biasing circuit, associated receiver and associated integrated circuit

A common mode voltage re-biasing circuit, for performing common mode voltage re-biasing in an analog front-end circuit of a receiver, the common mode voltage re-biasing circuit comprising:

• a control circuit, configured to generate at least one control signal according to a command, for controlling the common mode voltage re-biasing circuit to operate in a selected circuit configuration;
• and
• multiple switchable common mode voltage re-biasing sub-circuits, coupled to the control circuit, configured to select a predetermined circuit configuration from a first predetermined circuit configuration and a second predetermined circuit configuration according to the at least one control signal to be the selected circuit configuration to perform common mode voltage re-biasing operations corresponding to the selected circuit configuration, respectively, wherein the multiple switchable common mode voltage re-biasing sub-circuits comprise:
• a first switchable common mode voltage re-biasing sub-circuit, positioned in the analog front-end circuit of the receiver and coupled to a first differential input terminal of the receiver, wherein the first switchable common mode voltage re-biasing sub-circuit comprises:
• a first-type common mode voltage re-biasing sub-circuit, having a first circuit architecture;
• and
• a second-type common mode voltage re-biasing sub-circuit, having a second circuit architecture, wherein the second circuit architecture is different from the first circuit architecture;
• and
• a second switchable common mode voltage re-biasing sub-circuit, positioned in the analog front-end circuit of the receiver and coupled to a second differential input terminal of the receiver, wherein the second switchable common mode voltage re-biasing sub-circuit comprises:
• another first-type common mode voltage re-biasing sub-circuit, having another first circuit architecture that is the same as the first circuit architecture;
• and
• another second-type common mode voltage re-biasing sub-circuit, having another second circuit architecture that is the same as the second circuit architecture;
• wherein any of the first circuit architecture and said another first circuit architecture comprises a first resistor and a second resistor, and any of the second circuit architecture and said another second circuit architecture comprises a third resistor and a capacitor.