公开(公告)号：US20150102856A1

公开(公告)日：2015-04-16

申请号：US14503097

申请日：2014-09-30

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： Raymond Louis Barrett, JR. ,  Mark Chirachanchai

IPC: G05F3/16

CPC classification number: G05F3/16 ,  G05F3/30

Abstract: Embodiments may include a method, system and apparatus for providing a reference voltage supply. A series resistor is provided between a power supply and a bandgap circuit coupled to an amplifier. A shunt transistor circuit is operatively coupled to the series resistor. A programmable output voltage is provided based upon the shunt transistor circuit and a first value of the series resistor.

Abstract translation: 实施例可以包括用于提供参考电压源的方法，系统和装置。 在电源和耦合到放大器的带隙电路之间提供串联电阻器。 并联晶体管电路可操作地耦合到串联电阻器。 基于分流晶体管电路和串联电阻器的第一值提供可编程输出电压。

公开(公告)号：US20230308132A1

公开(公告)日：2023-09-28

申请号：US17705022

申请日：2022-03-25

Applicant: Advanced Micro Devices, Inc.

Inventor： Dean E. Gonzales ,  Edoardo Prete ,  Milam Paraschou ,  Mark Chirachanchai ,  Gerald R. Talbot

IPC: H04B3/14 ,  H04B3/26 ,  H04B3/46

CPC classification number: H04B3/141 ,  H04B3/145 ,  H04B3/26 ,  H04B3/46 ,  H01F17/08

Abstract: Systems, apparatuses, and methods for performing efficient data transfer in a computing system are disclosed. A computing system includes multiple transmitters sending singled-ended data signals to multiple receivers. In order to better handle noise issues when using single-ended signaling, one or more of the receivers include equalization circuitry and termination circuitry. The termination circuitry prevents reflection on a corresponding transmission line ending at a corresponding receiver. The equalization circuitry uses a bridged T-coil circuit to provide continuous time linear equalization (CTLE) with no feedback loop. The equalization circuitry performs equalization by providing a high-pass filter that offsets the low-pass characteristics of a corresponding transmission line. A comparator of the receiver receives the input signal and compares it to a reference voltage. The placement of the comparator and the ratio of the inductances of the inductors of the bridged T-coil circuit are based on whether the receiver includes self-diagnostic circuitry.

公开(公告)号：US09377805B2

公开(公告)日：2016-06-28

申请号：US14503097

申请日：2014-09-30

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： Raymond Louis Barrett, Jr. ,  Mark Chirachanchai

IPC: G05F1/10 ,  G05F3/16 ,  G05F3/30

CPC classification number: G05F3/16 ,  G05F3/30

Abstract: Embodiments may include a method, system and apparatus for providing a reference voltage supply. A series resistor is provided between a power supply and a bandgap circuit coupled to an amplifier. A shunt transistor circuit is operatively coupled to the series resistor. A programmable output voltage is provided based upon the shunt transistor circuit and a first value of the series resistor.

Abstract translation: 实施例可以包括用于提供参考电压源的方法，系统和装置。 在电源和耦合到放大器的带隙电路之间提供串联电阻器。 并联晶体管电路可操作地耦合到串联电阻器。 基于分流晶体管电路和串联电阻器的第一值提供可编程输出电压。