Signal receiver and signal transceiver

A signal receiver, comprising:

• a termination switch pair, receiving an operation power supply and having a common control end, wherein the termination switch pair comprises two transistors, and the common control end is coupled to a control end of each of the two transistors;
• a first resistor, coupled between a first signal input end and the common control end;
• a second resistor, coupled between a second signal input end and the common control end;
• and
• a pull-down circuit, coupled between the common control end and a reference voltage end, and determining whether to pull down a first control voltage on the common control end to a reference voltage according to a power-on state or a power-off state of the signal receiver,
• wherein when the signal receiver is in the power-off state, a voltage on the first signal input end or the second signal input end is provided to the common control end through the first resistor or the second resistor, and the termination switch pair is disconnected according to the first control voltage on the common control end.