公开(公告)号：US20240120912A1

公开(公告)日：2024-04-11

申请号：US17963084

申请日：2022-10-10

Applicant: SEMTECH CORPORATION

Inventor： Steven Greig PORTER ,  Stanley Jeh-Chun MA

IPC: H03K17/16 ,  H03H11/28

CPC classification number: H03K17/161 ,  H03H11/28

Abstract: A signal driver may include a variable termination resistor and a signal transmission line. The variable termination resistor may include one or more variable termination resistor units. Each of the one or more variable termination resistor units may include a switch connected to a first end node of the variable termination resistor; a T-coil connected to the switch; a first resistor connected to the first end node of the variable termination resistor and to the T-coil; and a second resistor connected to a second end node of the variable termination resistor and to the T-coil. The signal transmission line may be connected to the second end node of the variable termination resistor.

公开(公告)号：US20240113920A1

公开(公告)日：2024-04-04

申请号：US17956748

申请日：2022-09-29

Applicant: SEMTECH CORPORATION

Inventor： Steven Greig PORTER ,  Stanley Jeh-Chun MA

IPC: H04L25/02

CPC classification number: H04L25/0272 ,  H04L25/028 ,  H04L25/0292

Abstract: A signal driver may include a plurality of distributed drivers along a differential transmission line. Each of the plurality of the distributed drivers may include: an output tap configured to receive a portion of an incoming signal of the signal driver; and a T-coil connected to an output node of the output tap. The differential transmission line is connected to and intercepted by a first terminal and a second terminal of the T-coil, and a plurality of T-coils of the plurality of the distributed drivers are distributed along and spaced apart on the differential transmission line.

公开(公告)号：US20240097659A1

公开(公告)日：2024-03-21

申请号：US17947010

申请日：2022-09-16

Applicant: SEMTECH CORPORATION

Inventor： Steven Greig PORTER

IPC: H03K3/012 ,  H03F3/45

CPC classification number: H03K3/012 ,  H03F3/45475

Abstract: A differential signal driver may include a driver circuit and a feedback loop. The driver circuit may include a first output node coupled to a first termination node for receiving a first termination bias voltage, a second output node coupled to a second termination node for receiving a second termination bias voltage, and a bias network connected to the second output node and to the second termination node. The feedback loop may include a first feedback resistor connected to the first output node at a first end of the first feedback resistor, a second feedback resistor connected to the second output node at a first end of the second feedback resistor, and a feedback amplifier configured to provide a feedback correction current from a common mode voltage to a node within the line from the first output node to the first termination node.