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：US20250096450A1

公开(公告)日：2025-03-20

申请号：US18966557

申请日：2024-12-03

Applicant: Texas Instruments Incorporated

Inventor： Tolga Dinc ,  Swaminathan Sankaran ,  Sachin Kalia

IPC: H01P5/18

Abstract: An on-chip directional coupler includes a first linear conductive trace, a second linear conductive trace, and a conductive loop. The first linear conductive trace including an end and a coupled port. The second linear conductive trace is spaced apart from and parallel to the first linear conductive trace. The second linear conductive trace includes an end and an isolated port. The conductive loop includes a first end conductively coupled to the end of the first linear conductive trace, and a second end conductively coupled to the end of the second linear conductive trace.

公开(公告)号：US20240223168A1

公开(公告)日：2024-07-04

申请号：US18148845

申请日：2022-12-30

Applicant: Texas Instruments Incorporated

Inventor： Tolga Dinc ,  Sachin Kalia ,  Swaminathan Sankaran

IPC: H03K5/00 ,  G06F1/08 ,  H03H7/01

CPC classification number: H03K5/00006 ,  G06F1/08 ,  H03H7/0115 ,  H03H7/0161

Abstract: Described embodiments include a circuit having a quadrature phase generator circuit having differential generator inputs, in-phase differential generator outputs and quadrature-phase differential generator outputs. A first frequency multiplier circuit has first differential multiplier inputs and a first multiplier output, wherein the first differential multiplier inputs are coupled to the in-phase differential generator outputs. A second frequency multiplier circuit has second differential multiplier inputs and a second multiplier output. The second multiplier differential inputs are coupled to the quadrature-phase differential generator outputs. A transformer includes a primary inductor and a secondary inductor, wherein the primary inductor is coupled between the first and second multiplier outputs, and the second inductor is coupled between an output voltage terminal and a ground terminal.

公开(公告)号：US20240178877A1

公开(公告)日：2024-05-30

申请号：US18072667

申请日：2022-11-30

Applicant: Texas Instruments Incorporated

Inventor： Tolga Dinc ,  Sachin Kalia ,  Swaminathan Sankaran

IPC: H04B1/44 ,  H03K17/687

CPC classification number: H04B1/44 ,  H03K17/6871

Abstract: In described examples, a multi-terminal switch includes first and second switches, and first, second, and third inductors. The first switch and first inductor are coupled between first terminals, the second switch and second inductor are coupled between second terminals, and the third inductor is coupled between third terminals. In a first mode, the first switch is opened and the second switch is closed. Opening the first switch and closing the second switch enables a first connection between the first terminals and the third terminals via a first magnetic coupling between the first and third inductors. In a second mode, the first switch is closed and the second switch is opened. Closing the first switch and opening the second switch enables a second connection between the second terminals and the third terminals via a second magnetic coupling between the second and third inductors.

公开(公告)号：US11652446B2

公开(公告)日：2023-05-16

申请号：US17694953

申请日：2022-03-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Sachin Kalia ,  Tolga Dinc ,  Swaminathan Sankaran

IPC: H03D7/14 ,  H03D7/12 ,  H03D7/16

CPC classification number: H03D7/1458 ,  H03D7/125 ,  H03D7/1433 ,  H03D7/1441 ,  H03D7/16

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：US11368124B1

公开(公告)日：2022-06-21

申请号：US17189556

申请日：2021-03-02

Applicant: Texas Instruments Incorporated

Inventor： Sachin Kalia ,  Tolga Dinc ,  Bichoy Bahr ,  Swaminathan Sankaran

IPC: H03B5/32 ,  H03H9/17 ,  H03L7/099

Abstract: An oscillator includes: a bulk-acoustic wave (BAW) resonator having a first BAW resonator terminal and a second BAW resonator terminal; and an active circuit coupled to the first and second BAW resonator terminals and having a series resonance topology with: a first transistor; a second transistor; a first resistor; a second resistor; a capacitive network coupled to first and second BAW resonator terminals and to respective current terminals of the first and second transistors; and an inductor having a first inductor terminal and a second inductor terminal, the first inductor terminal coupled to the capacitive network, and the second inductor terminal coupled to ground terminal.

公开(公告)号：US09484858B1

公开(公告)日：2016-11-01

申请号：US14986607

申请日：2015-12-31

Applicant: Texas Instruments Incorporated

Inventor： Sachin Kalia ,  Bradley A. Kramer ,  Swaminathan Sankaran

IPC: H03B27/00 ,  H03B5/12

CPC classification number: H03B27/00 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1296 ,  H03B2200/0078

Abstract: A quadrature voltage controlled oscillator (QVCO) for providing an oscillating output signal. The QVCO includes a first oscillating circuit for producing a first output signal and a second output signal, those signals being a first set of antiphase signals. The QVCO also includes a second oscillating circuit for producing a first output signal and a second output signal, those signals being a second set of antiphase signals. The first oscillating circuit also has injection circuitry for injecting the second set of antiphase signals without a DC bias into the first output signal and the second output signal, and the second oscillating circuit also has injection circuitry for injecting the first set of antiphase signals without a DC bias into the third output signal and the fourth output signal.

Abstract translation: 用于提供振荡输出信号的正交压控振荡器（QVCO）。 QVCO包括用于产生第一输出信号和第二输出信号的第一振荡电路，这些信号是第一组反相信号。 QVCO还包括用于产生第一输出信号和第二输出信号的第二振荡电路，这些信号是第二组反相信号。 第一振荡电路还具有用于将第二组反相信号注入到第一输出信号和第二输出信号中的第二组反相信号的注入电路，并且第二振荡电路还具有用于注入第一组反相信号的注入电路， DC偏置到第三输出信号和第四输出信号。