公开(公告)号：US11621711B2

公开(公告)日：2023-04-04

申请号：US17374319

申请日：2021-07-13

Applicant: Texas Instruments Incorporated

Inventor： Anant Shankar Kamath ,  Kanteti Amar ,  Bharath Kumar Singareddy ,  Rakesh Hariharan

IPC: H03K19/00

Abstract: Methods, apparatus, systems, and articles of manufacture corresponding to a low area and high speed termination detection circuit with voltage clamping are disclosed. An example apparatus includes a transistor including a first control terminal, first current terminal and a second current terminal, the second current terminal adapted to be coupled to a load. The apparatus further includes a logic gate including an input coupled to the first current terminal. The apparatus further includes a current source including a second control terminal, a third current terminal coupled to a voltage rail and a fourth current terminal coupled to the first current terminal and the input of the logic gate.

公开(公告)号：US20220206983A1

公开(公告)日：2022-06-30

申请号：US17502418

申请日：2021-10-15

Applicant: Texas Instruments Incorporated

Inventor： Mustafa Ulvi Erdogan ,  Bharath Kumar Singareddy ,  Suzanne Mary Vining ,  Srijan Rastogi ,  Sirish Oruganti ,  Douglas Edward Wente

IPC: G06F13/40 ,  G06F13/42

Abstract: A method of operating an embedded universal serial bus (eUSB) repeater includes holding an eUSB receiver and a USB transmitter in active states and holding a USB receiver and an eUSB transmitter in standby states. The method includes receiving by the eUSB receiver a token packet indicative of transmission of a first downstream packet, and transitioning the USB receiver and the eUSB transmitter from the standby states to the active states responsive to the token packet. The method includes transmitting the token packet by the USB transmitter. The method includes receiving by the eUSB receiver a downstream packet or receiving by the USB receiver an upstream packet within a first timeout period after receiving the token packet, and transmitting the downstream packet by the USB transmitter or transmitting the upstream packet by the eUSB transmitter.

公开(公告)号：US11309892B2

公开(公告)日：2022-04-19

申请号：US17174119

申请日：2021-02-11

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Win Naing Maung ,  Bharath Kumar Singareddy ,  Soumi Paul ,  Mayank Garg ,  Suzanne Mary Vining

IPC: H04B3/36 ,  G06F13/42 ,  H04L25/02 ,  H03K19/0185 ,  H04L7/00

Abstract: A circuit includes signal conditioner circuitry, level shifter circuitry, and state detector and controller circuitry coupled between the signal conditioner circuitry and the level shifter circuitry. The state detector and controller circuitry includes receiver circuitry and a finite state machine coupled to the receiver circuitry. The finite state machine is configured to detect a first data rate from signals, control operation of the signal conditioner circuitry responsive to detecting the first data rate, and control operation of the level shifter circuitry during a second data rate.