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公开(公告)号：US20240056047A1
公开(公告)日：2024-02-15
申请号：US18487573
申请日：2023-10-16
Applicant: Texas Instruments Incorporated
Inventor： Harikrishna Parthasarathy , Arnab Das
IPC: H03G3/30
CPC classification number: H03G3/3057
Abstract: An integrated circuit device is provided. In some examples, the integrated circuit device includes an amplifier stage that receives an input signal and a control signal and provides an amplified signal in response. A main path is coupled to the amplifier stage that receives the amplified signal and provides a first feedback signal corresponding to a signal strength of a data-bearing portion of the input signal. A control path also receives the amplified signal and provides a second feedback signal corresponding to a signal strength of the data-bearing portion and an interference component. A gain control circuit is coupled to the main path and the control path that receives the first and second feedback signals and provides the control signal in response to the feedback signals. In some such examples, the control path and main path include separate mixer stages with different performance characteristics.
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公开(公告)号：US20210083639A1
公开(公告)日：2021-03-18
申请号：US16575132
申请日：2019-09-18
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Harikrishna Parthasarathy , Arnab Das
IPC: H03G3/30
Abstract: An integrated circuit device is provided. In some examples, the integrated circuit device includes an amplifier stage that receives an input signal and a control signal and provides an amplified signal in response. A main path is coupled to the amplifier stage that receives the amplified signal and provides a first feedback signal corresponding to a signal strength of a data-bearing portion of the input signal. A control path also receives the amplified signal and provides a second feedback signal corresponding to a signal strength of the data-bearing portion and an interference component. A gain control circuit is coupled to the main path and the control path that receives the first and second feedback signals and provides the control signal in response to the feedback signals. In some such examples, the control path and main path include separate mixer stages with different performance characteristics.
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公开(公告)号：US11139791B2
公开(公告)日：2021-10-05
申请号：US16575132
申请日：2019-09-18
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Harikrishna Parthasarathy , Arnab Das
IPC: H03G3/30
Abstract: An integrated circuit device is provided. In some examples, the integrated circuit device includes an amplifier stage that receives an input signal and a control signal and provides an amplified signal in response. A main path is coupled to the amplifier stage that receives the amplified signal and provides a first feedback signal corresponding to a signal strength of a data-bearing portion of the input signal. A control path also receives the amplified signal and provides a second feedback signal corresponding to a signal strength of the data-bearing portion and an interference component. A gain control circuit is coupled to the main path and the control path that receives the first and second feedback signals and provides the control signal in response to the feedback signals. In some such examples, the control path and main path include separate mixer stages with different performance characteristics.
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公开(公告)号：US11994548B2
公开(公告)日：2024-05-28
申请号：US17512552
申请日：2021-10-27
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Arnab Das
CPC classification number: G01R29/0878 , H03F3/193 , H03G3/3036 , H03F2200/435 , H03F2200/451 , H03G2201/103
Abstract: An apparatus comprises a transistor pair including a first metal oxide semiconductor field effect transistor (MOSFET) coupled to a second MOSFET. The first MOSFET includes a first gate terminal and a first drain terminal. The second MOSFET comprises a second gate terminal and a second drain terminal. The first gate terminal is configured to receive a first signal. The second gate terminal is configured to receive a second signal that is phase shifted with respect to the first signal. An output node is coupled to the first drain terminal and the second drain terminal and configured to output a third signal that is proportional to a power of the first signal and the second signal.
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公开(公告)号：US11323103B2
公开(公告)日：2022-05-03
申请号：US17138145
申请日：2020-12-30
Applicant: Texas Instruments Incorporated
Inventor： Arnab Das
IPC: H03K5/00 , G01R19/00 , G01R19/04 , H03K5/01 , H03K5/1252
Abstract: A circuit with a differential input configured to receive a differential analog input signal. The circuit also includes a common mode detection circuit, a primary signal circuit coupled, and a replica block. The circuit also includes a summer coupled to the output of the primary signal circuit and to an output of the replica block.
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Patent Agency Ranking
公开(公告)号：US12096364B2
公开(公告)日：2024-09-17
申请号：US17530059
申请日：2021-11-18
Applicant: Texas Instruments Incorporated
Inventor： Sucheth Suresh Babu Kuncham , Arnab Das , Pranav Sinha , Meghna Agrawal
CPC classification number: H04W52/0229 , H03M1/185 , H04L5/0007 , H04W84/12
Abstract: A Wi-Fi wake-up receiver that receives wake-up signals encoded using orthogonal frequency division multiplexing based on-off keying (OFDM-OOK) modulation includes receiver circuitry having analog envelope detector circuitry configured to non-linearly down-convert an input signal and provide an energy signal for sampling by an analog-to-digital converter (ADC). A wake-up signal for waking up a main radio in a Wi-Fi device can be based on the digitized energy signal. The receiver circuitry can further include, upstream of the envelope detector circuitry and the ADC in the signal chain, an analog mixer for linearly down-converting the input signal and a low-pass filter for attenuating adjacent-channel interferer (ACI) signals prior to the non-linear down-conversion by the envelope detector circuitry. Sampling of the energy signal rather than the higher-bandwidth input signal yield power savings in the ADC and associated circuitry such as a modem.
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公开(公告)号：US11824508B2
公开(公告)日：2023-11-21
申请号：US17465243
申请日：2021-09-02
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Harikrishna Parthasarathy , Arnab Das
IPC: H03G3/30
CPC classification number: H03G3/3057
Abstract: An integrated circuit device is provided. In some examples, the integrated circuit device includes an amplifier stage that receives an input signal and a control signal and provides an amplified signal in response. A main path is coupled to the amplifier stage that receives the amplified signal and provides a first feedback signal corresponding to a signal strength of a data-bearing portion of the input signal. A control path also receives the amplified signal and provides a second feedback signal corresponding to a signal strength of the data-bearing portion and an interference component. A gain control circuit is coupled to the main path and the control path that receives the first and second feedback signals and provides the control signal in response to the feedback signals. In some such examples, the control path and main path include separate mixer stages with different performance characteristics.
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公开(公告)号：US20220109435A1
公开(公告)日：2022-04-07
申请号：US17138145
申请日：2020-12-30
Applicant: Texas Instruments Incorporated
Inventor： Arnab Das
IPC: H03K5/01 , H03K5/1252 , G01R19/04
Abstract: A circuit with a differential input configured to receive a differential analog input signal. The circuit also includes a common mode detection circuit, a primary signal circuit coupled, and a replica block. The circuit also includes a summer coupled to the output of the primary signal circuit and to an output of the replica block.
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公开(公告)号：US12063019B2
公开(公告)日：2024-08-13
申请号：US18487573
申请日：2023-10-16
Applicant: Texas Instruments Incorporated
Inventor： Harikrishna Parthasarathy , Arnab Das
IPC: H03G3/30
CPC classification number: H03G3/3057
Abstract: An integrated circuit device is provided. In some examples, the integrated circuit device includes an amplifier stage that receives an input signal and a control signal and provides an amplified signal in response. A main path is coupled to the amplifier stage that receives the amplified signal and provides a first feedback signal corresponding to a signal strength of a data-bearing portion of the input signal. A control path also receives the amplified signal and provides a second feedback signal corresponding to a signal strength of the data-bearing portion and an interference component. A gain control circuit is coupled to the main path and the control path that receives the first and second feedback signals and provides the control signal in response to the feedback signals. In some such examples, the control path and main path include separate mixer stages with different performance characteristics.
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公开(公告)号：US20210399706A1
公开(公告)日：2021-12-23
申请号：US17465243
申请日：2021-09-02
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Harikrishna Parthasarathy , Arnab Das
IPC: H03G3/30
Abstract: An integrated circuit device is provided. In some examples, the integrated circuit device includes an amplifier stage that receives an input signal and a control signal and provides an amplified signal in response. A main path is coupled to the amplifier stage that receives the amplified signal and provides a first feedback signal corresponding to a signal strength of a data-bearing portion of the input signal. A control path also receives the amplified signal and provides a second feedback signal corresponding to a signal strength of the data-bearing portion and an interference component. A gain control circuit is coupled to the main path and the control path that receives the first and second feedback signals and provides the control signal in response to the feedback signals. In some such examples, the control path and main path include separate mixer stages with different performance characteristics.
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