Connector with active circuit

Patent metadata

Field	Value
Publication number	US-10965047-B2
Application number	US-201916431498-A
Country	US
Kind code	B2
Filing date	Jun 4, 2019
Priority date	Jun 4, 2019
Publication date	Mar 30, 2021
Grant date	Mar 30, 2021

Abstract

Embodiments may relate to a connector. The connector may include a plurality of connector pins that are to communicatively couple an element of a printed circuit board (PCB) with an element of an electronic device when the element of the PCB and the element of the electronic device are coupled with the connector. The connector may also include an active circuit that is communicatively coupled with a pin of the plurality of pins. The active circuit may be configured to match an impedance of the element of the PCB with an impedance of the element of the electronic device. Other embodiments may be described or claimed.

First claim

The invention claimed is:

1. A connector comprising:
a housing;
a plurality of connector pins positioned within the housing, wherein the connector pins are to communicatively couple an element of a printed circuit board (PCB) with an element of an electronic device when the element of the PCB and the element of the electronic device are coupled with the connector; and
an active circuit positioned within the housing, wherein the active circuit is communicatively coupled with a pin of the plurality of pins, the active circuit is to match an impedance of the element of the PCB with an impedance of the element of the electronic device, the active circuit has a z-height of less than 1 millimeter (mm) as measured in a direction perpendicular to a face of the PCB to which the connector is to couple, the active circuit includes a linear buffer, and the active circuit further includes a tunable resistor that is communicatively coupled with the linear buffer and an input of the active circuit.

2. The connector of claim 1 , wherein the active circuit is serially coupled with the connector pin.

3. The connector of claim 1 , wherein the pin is a first pin and the active circuit is a first active circuit, and wherein the connector further comprises a second active circuit positioned within the housing, wherein the second active circuit is communicatively coupled with a second pin of the plurality of pins, and wherein the second active circuit is to match an impedance of the element of the PCB with an impedance of the element of the electronic device.

4. The connector of claim 1 , wherein the connector is to facilitate communication between the element of the PCB and the element of the electronic device in accordance with a peripheral component interconnect express (PCIe) protocol.

5. The connector of claim 1 , wherein the active circuit has a z-height of less than 0.5 mm.

6. The connector of claim 1 , wherein the active circuit has a length of less than 1 millimeter (mm) as measured in a direction parallel to a face of the PCB to which the connector is to couple.

7. The connector of claim 6 , wherein the active circuit has a length of less than 0.5 mm.

8. The connector of claim 1 , wherein the linear buffer is to match an input impedance of the active circuit with an impedance of the element of the PCB, and the linear buffer is further to match an output impedance of the active circuit with an impedance of the electronic device.

9. The connector of claim 3 , wherein the second active circuit includes a linear buffer, the linear buffer of the second active circuit is to match an input impedance of the second active circuit with an impedance of the element of the PCB, and the linear buffer of the second active circuit is further to match an output impedance of the second active circuit with an impedance of the electronic device.

10. An electronic device comprising:
a printed circuit board (PCB) that includes a signal source;
an electronic component; and
a connector that communicatively couples the electronic component to the signal source, wherein the connector includes:
a plurality of pins; and
an active circuit communicatively coupled with the pin, wherein the active circuit includes a linear buffer that is to match an input impedance of the active circuit with an impedance of the signal source, the linear buffer is further to match an output impedance of the active circuit with an impedance of the electronic component, and the active circuit is to provide a bias voltage that is communicatively coupled with an input of the active circuit, an output of the active circuit, and the linear buffer.

11. The electronic device of claim 10 , wherein the linear buffer includes a transistor.

12. The electronic device of claim 10 , wherein a value of the bias voltage is based on the impedance of the signal source or the impedance of the electronic component.

13. The electronic device of claim 10 , wherein a value of the bias voltage is based on a desired output swing of the output impedance of the active circuit.

14. The electronic device of claim 10 , wherein the active circuit further includes a tunable resistor that is communicatively coupled with the linear buffer and an input of the active circuit.

15. The electronic device of claim 14 , wherein a value of the tunable resistor is based on the impedance of the signal source or the impedance of the electronic component.

16. The electronic device of claim 14 , wherein a value of the tunable resistor is based on a desired output swing of the output impedance of the active circuit.

17. A backplane connector comprising:
a plurality of pins that include a first pin and a second pin, wherein the plurality of pins are to communicatively couple a first signal source and a second signal source that are coupled with the backplane connector to an electronic component that is coupled with the backplane connector, and wherein the backplane connector is to facilitate communication between the first signal source and the electronic component or the second signal source and the electronic component in accordance with a high-speed signal interface;
a first active circuit that is communicatively coupled with the first pin and communicatively positioned between the first signal source and the electronic component when the backplane connector is coupled with the first signal source, wherein the first active circuit includes a linear buffer that is to match an input impedance of the first active circuit with an impedance of the first signal source, and wherein the linear buffer is further to match an output impedance of the first active circuit with an impedance of the electronic component; and
a second active circuit that is communicatively coupled with the second pin and communicatively positioned between the second signal source and the electronic component when the backplane connector is coupled with the second signal source, wherein the second active circuit includes a linear buffer that is to match an input impedance of the second active circuit with an impedance of the second signal source, and wherein the linear buffer is further to match an output impedance of the second active circuit with an impedance of the electronic component.

18. The backplane connector of claim 17 , wherein the linear buffer of the first active circuit includes a plurality of transistors.

19. The backplane connector of claim 17 , wherein the first active circuit includes a bias voltage and a tunable resistor.

20. The backplane connector of claim 19 , wherein a value of the bias voltage or a value of the tunable resistor is based on the impedance of the first signal source or the impedance of the first pin.

Assignees

• Intel Corp

Inventors

• Guo Jong-Ru
• Chu Yunhui
• Liao Jun
• Xiao Kai
• Li Jingbo
• Zhao Yuanhong
• Liu Mo
• Lee Beomtaek
• Mccall James A
• Lee Jaejin
• Ye Xiaoning
• Wu Zuoguo
• Li Xiang

Classifications

• H01R13/665 Primary

  with built-in electronic circuit (H01R13/70, H01R13/719 take precedence) · CPC title

• H01R12/716 Primary

  Coupling device provided on the PCB · CPC title

• H01R2103/00

  Two poles · CPC title

• H01R12/71

  for rigid printing circuits or like structures · CPC title

• H01R13/6473

  Impedance matching · CPC title