公开(公告)号：US20220247402A1

公开(公告)日：2022-08-04

申请号：US17163559

申请日：2021-02-01

Applicant: Novatek Microelectronics Corp.

Inventor： Liang-Ting Kuo ,  Chih-Yuan Kung ,  Kuan-Ting Lin ,  Chu-Wei Hsia

IPC: H03K17/0812 ,  H04L25/02

Abstract: A termination circuit, including a termination resistor, a first switch circuit, a second switch circuit, and a control circuit, is provided. A first end of the termination resistor is coupled to a signal pad. A first end of the first switch circuit is coupled to a second end of the termination resistor. A first end of the second switch circuit is coupled to a second end of the first switch circuit. A second end of the second switch circuit is coupled to a reference voltage line. During a period when the second switch circuit is turned on, the control circuit turns on the first switch circuit with a bias voltage. During a period when the second switch circuit is turned off, the control circuit turns off the first switch circuit with a voltage of the first end of the first switch circuit.

公开(公告)号：US11444615B2

公开(公告)日：2022-09-13

申请号：US17163559

申请日：2021-02-01

Applicant: Novatek Microelectronics Corp.

Inventor： Liang-Ting Kuo ,  Chih-Yuan Kung ,  Kuan-Ting Lin ,  Chu-Wei Hsia

IPC: H03K17/0812 ,  H04L25/02

Abstract: A termination circuit, including a termination resistor, a first switch circuit, a second switch circuit, and a control circuit, is provided. A first end of the termination resistor is coupled to a signal pad. A first end of the first switch circuit is coupled to a second end of the termination resistor. A first end of the second switch circuit is coupled to a second end of the first switch circuit. A second end of the second switch circuit is coupled to a reference voltage line. During a period when the second switch circuit is turned on, the control circuit turns on the first switch circuit with a bias voltage. During a period when the second switch circuit is turned off, the control circuit turns off the first switch circuit with a voltage of the first end of the first switch circuit.