公开(公告)号：US20230025757A1

公开(公告)日：2023-01-26

申请号：US17489483

申请日：2021-09-29

Applicant: Texas Instruments Incorporated

Inventor： RR Manikandan ,  Kumar Anurag Shrivastava ,  Robert Floyd Payne ,  Anant Shankar Kamath ,  Swaminathan Sankaran ,  Kishalay Datta ,  Siraj Akhtar ,  Mark Edward Wentroble ,  Suvadip Banerjee ,  Rakesh Hariharan ,  Gurumurti Kailaschandra Avhad

IPC: H04B1/44 ,  H03K3/017 ,  H03K5/24 ,  H04L27/04 ,  H04L27/06

Abstract: In described examples, an integrated circuit includes an on-off keying (OOK) digital isolator, which includes a first circuitry, a multiplexer, an OOK modulator, an isolation barrier, an OOK envelope detector, and a second circuitry. The first circuitry generates and outputs a calibration signal. The multiplexer has a data signal input, and an input coupled to a first circuitry output. An OOK modulator input is coupled to a multiplexer output. An isolation barrier input is coupled to an OOK modulator output. An OOK envelope detector input is coupled to an isolation barrier output. The second circuitry includes an input coupled to an OOK envelope detector output, and an output coupled to an OOK envelope detector control input. The second circuitry detects a duty cycle distortion (DCD) of the OOK envelope detector output, and outputs a control signal to change the OOK envelope detector output's duty cycle based on the detected DCD.

公开(公告)号：US20220352853A1

公开(公告)日：2022-11-03

申请号：US17694953

申请日：2022-03-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Sachin Kalia ,  Tolga Dinc ,  Swaminathan Sankaran

IPC: H03D7/14 ,  H03D7/16 ,  H03D7/12

Abstract: A frequency multiplier includes an input section having inputs to receive an input signal having an input frequency, a mixer section, and an output section magnetically coupled to the input section and generating an output signal in response to the input signal. The mixer section may be coupled to the input section by a common mode node forming a path for a common mode current to flow to the mixer section and be magnetically coupled to the common mode node. The input section may generate a signal current, and the mixer section may be magnetically coupled to the input section and be directly capacitively coupled to the input section through a capacitor in a signal current path. The mixer section may have differential inputs capacitively coupled to the input section and also be coupled to the input section through a current path. A current helper section may be coupled to the current path.

公开(公告)号：US20220189873A1

公开(公告)日：2022-06-16

申请号：US17120123

申请日：2020-12-12

Applicant: Texas Instruments Incorporated

Inventor： Klaas De Haan ,  Mikhail Valeryevich Ivanov ,  Tobias Bernhard Fritz ,  Swaminathan Sankaran ,  Thomas Dyer Bonifield

IPC: H01L23/522 ,  H01L23/50 ,  H04L25/02 ,  H01L21/50

Abstract: An electronic device has a substrate and first and second metallization levels with a resonant circuit. The first metallization level has a first dielectric layer on a side of the substrate, and a first metal layer on the first dielectric layer. The second metallization level has a second dielectric layer on the first dielectric layer and the first metal layer, and a second metal layer on the second dielectric layer. The electronic device includes a first plate in the first metal layer, and a second plate spaced apart from the first plate in the second metal layer to form a capacitor. The electronic device includes a winding in one of the first and second metal layers and coupled to one of the first and second plates in a resonant circuit.

公开(公告)号：US20220150093A1

公开(公告)日：2022-05-12

申请号：US17096045

申请日：2020-11-12

Applicant: Texas Instruments Incorporated

Inventor： Anand Dabak ,  Mahmoud Abdelmoneim Abdelmoneim Elgenedy ,  Timothy Mark Schmidl ,  Swaminathan Sankaran

IPC: H04L25/03 ,  H04B3/32

Abstract: In described examples of a signal equalizer, a complex signal having a first signal component and a second signal component is received from a communication channel. Adaptive equalization of crosstalk between the first signal component and the second signal component is performed using a single complex tap of a feedforward equalizer. A feedforward filter with real only taps converts the channel into a minimum phase channel that has postcursor interference only so that a low complexity decision feedback filter with all complex taps can easily eliminate the postcursor interreference.

公开(公告)号：US11316476B1

公开(公告)日：2022-04-26

申请号：US17246425

申请日：2021-04-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Sachin Kalia ,  Tolga Dine ,  Swaminathan Sankaran

IPC: H03D7/14 ,  H03D7/12 ,  H03D7/16

Abstract: A frequency multiplier includes an input section to receive a quadrature phase input signal having an input frequency, a mixer section coupled to the input section by a common mode node that forms a path for the common mode signal current to flow to the mixer section and magnetically coupled to the common mode node or capacitively coupled to the input section to generate a differential switching voltage at odd multiples of twice the input frequency, which switching voltage is applied to inputs of the mixer section, and an output section magnetically coupled to the mixer section, the output section being configured to generate an output voltage having a dominate frequency and sub-dominate frequencies spaced apart by the first multiple, the dominate frequency of the output voltage being a second multiple of the input frequency, where the second multiple is greater than the first multiple. Various arrangements are provided.

公开(公告)号：US11088696B2

公开(公告)日：2021-08-10

申请号：US16731739

申请日：2019-12-31

Applicant: Texas Instruments Incorporated

Inventor： Salvatore Luciano Finocchiaro ,  Tolga Dine ,  Gerd Schuppener ,  Siraj Akhtar ,  Swaminathan Sankaran ,  Baher Haroun

IPC: H03L7/089 ,  H02M3/07 ,  H03L7/087

Abstract: In described examples, a method of operating a charge pump includes a first control signal deactivating a first transistor, and the first control signal's logical complement activating a second transistor to reset the first transistor's DC bias voltage. The first control signal's logical complement deactivates the second transistor, and the first control signal provides a bias voltage to the first transistor to activate it, causing current to be transmitted from an input voltage to an output terminal. A second control signal deactivates a third transistor, and the second control signal's logical complement activates a fourth transistor to reset the second transistor's DC bias voltage. The second control signal's logical complement deactivates the fourth transistor, and the second control signal provides a bias voltage to the third transistor to activate it, causing current to be transmitted from the output terminal to a ground.

公开(公告)号：US20210203329A1

公开(公告)日：2021-07-01

申请号：US16731739

申请日：2019-12-31

Applicant: Texas Instruments Incorporated

Inventor： Salvatore Luciano Finocchiaro ,  Tolga Dinc ,  Gerd Schuppener ,  Siraj Akhtar ,  Swaminathan Sankaran ,  Baher Haroun

IPC: H03L7/089 ,  H03L7/087 ,  H02M3/07

Abstract: In described examples, a method of operating a charge pump includes a first control signal deactivating a first transistor, and the first control signal's logical complement activating a second transistor to reset the first transistor's DC bias voltage. The first control signal's logical complement deactivates the second transistor, and the first control signal provides a bias voltage to the first transistor to activate it, causing current to be transmitted from an input voltage to an output terminal. A second control signal deactivates a third transistor, and the second control signal's logical complement activates a fourth transistor to reset the second transistor's DC bias voltage. The second control signal's logical complement deactivates the fourth transistor, and the second control signal provides a bias voltage to the third transistor to activate it, causing current to be transmitted from the output terminal to a ground.

公开(公告)号：US20200162127A1

公开(公告)日：2020-05-21

申请号：US16773557

申请日：2020-01-27

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Benjamin Stassen Cook ,  Swaminathan Sankaran

IPC: H04B5/00 ,  H01P5/107

Abstract: A system is provided in which a first waveguide has a first resonator coupled to an end of the first waveguide. A second waveguide has a second resonator coupled to the second waveguide. The first resonator is spaced apart from the second resonator by a gap distance. Transmission of a signal propagated by the first waveguide across the gap to the second waveguide is enhanced by a confined near field mode magnetic field produced by the first resonator in response to the propagating wave that is coupled to the second resonator.

公开(公告)号：US20190334220A1

公开(公告)日：2019-10-31

申请号：US16393809

申请日：2019-04-24

Applicant: Texas Instruments Incorporated

Inventor： Hassan Omar Ali ,  Juan Alejandro Herbsommer ,  Benjamin Cook ,  Swaminathan Sankaran

IPC: H01P3/16 ,  H01Q13/00 ,  H01Q1/22 ,  H01P3/08 ,  H01P5/08 ,  H01L23/66 ,  H01L23/00 ,  H01L23/498

Abstract: A wave communication system includes an integrated circuit and a multilayered substrate. The multilayered substrate is electrically coupled to the integrated circuit. The multilayered substrate includes an antenna structure configured to transmit a circularly polarized wave in response to signals from the integrated circuit.

公开(公告)号：US10182116B2

公开(公告)日：2019-01-15

申请号：US15380487

申请日：2016-12-15

Applicant: Texas Instruments Incorporated

Inventor： Swaminathan Sankaran ,  Baher Haroun ,  Srinath M. Ramaswamy

IPC: H04L29/08 ,  H04B5/00

Abstract: One example includes a system is comprised of an elongated transmission line and as module. The elongated transmission line includes an arrangement of transmission line couplers distributed along its length at spaced apart locations. The module has an outer surface and is comprised of a transmitter, and a transmitter coupler. The transmitter transmits a radio frequency signal. The transmitter coupler is on the outer surface of the module, electrically connects with the transmitter, and aligns to couple with a respective one of the transmission line couplers to provide a contactless communication link between the transmitter and the elongated transmission line.