Transmitter and transmission/reception system

A transmitter that transmits differential signals to a receiver via differential signal lines having AC coupling capacitors provided in middle of the differential signal lines, the transmitter comprising:

• an output driver configured to output the differential signals to the differential signal lines;
• first termination resistors and a first switch, the first termination resistors and the first switch being provided in series between a first reference voltage input terminal and the differential signal lines, a reference voltage being inputted to the first reference voltage input terminal;
• a pulse generator configured to output a common-mode pulse to the differential signal lines;
• a second switch provided between the differential signal lines and the pulse generator;
• a detector configured to detect, after generation of the common-mode pulse starts, timing at which a voltage level of the common-mode pulse exceeds a threshold;
• and
• a controller configured to place the second switch in an on state to connect the pulse generator to the differential signal lines, and power down the output driver and then place the first switch in an off state to allow the pulse generator to output the common-mode pulse to the differential signal lines.