TRANSMISSION APPARATUS, RECEPTION APPARATUS, AND TRANSMISSION/RECEPTION SYSTEM

摘要

A transmission/reception system 1 includes a transmission apparatus 10A, and a reception apparatus 20A. The transmission apparatus 10A includes a first switch 101, a second switch 102, a first transistor 111, a second transistor 112, a first differential amplifier 121, and a second differential amplifier 122. The reception apparatus 20A includes a first transistor 211, a second transistor 212, a first differential amplifier 221, a second differential amplifier 222, a first resistor 231, a second resistor 232, and a reception unit 240.

主权项

1. A transmission apparatus transmitting differential signals, corresponding to an input signal, from a first transmission end and a second transmission end, the transmission apparatus, comprising:
a first transistor including a first terminal, a second terminal, and a control terminal, wherein a first power source potential is applied to the first terminal, and a resistance value between the first terminal and the second terminal is set corresponding to a voltage value which is to be input to the control terminal; a first switch provided between the second terminal of the first transistor and the second transmission end and set to be in either an open or close state corresponding to a level of the input signal; a first differential amplifier including a first input terminal, a second input terminal, and an output terminal, wherein the first input terminal is connected to the second terminal of the first transistor or the second transmission end, a first reference potential is applied to the second input terminal, and the output terminal is connected to the control terminal of the first transistor; a second transistor including a first terminal, a second terminal, and a control terminal, wherein a second power source potential lower than the first power source potential is applied to the first terminal, and a resistance value between the first terminal and the second terminal is set corresponding to a voltage value which is to be input to the control terminal; a second switch provided between the second terminal of the second transistor and the first transmission end and set to be in either the open or close state corresponding to the level of the input signal; and a second differential amplifier including a first input terminal, a second input terminal, and an output terminal, wherein the first input terminal being connected to the second terminal of the second transistor or the first transmission end, a second reference potential lower than the first reference potential is applied to the second input terminal, and the output terminal is connected to the control terminal of the second transistor.