公开(公告)号：US20200092148A1

公开(公告)日：2020-03-19

申请号：US16130087

申请日：2018-09-13

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Yogesh DARWHEKAR ,  Pranav KUMAR ,  Arpan THAKKAR ,  Naveen MAHADEV ,  Srikanth MANIAN

IPC: H04L27/00 ,  H04L27/38 ,  H04L27/148 ,  H04L27/152

Abstract: A receiver circuit includes a quadrature signal generator to generate an in-phase (I) signal and a quadrature (Q) signal from a local oscillator signal and an IQ phase sense and control circuit to generate a phase adjustment code responsive to a phase error between quadrature signals generated by a plurality of mixers. The receiver circuit also includes a phase corrector to adjust a phase difference between the I and Q signals from the quadrature signal generator to generate corrected I and Q signals to be provided to the plurality of mixers.

公开(公告)号：US20190252373A1

公开(公告)日：2019-08-15

申请号：US15990880

申请日：2018-05-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Pranav KUMAR ,  Yogesh DARWHEKAR

IPC: H01L27/06 ,  H01L29/73 ,  H03K19/018

CPC classification number: H01L27/0647 ,  H01L29/7302 ,  H03K19/01825 ,  H03K19/01837

Abstract: A circuit includes a first bipolar junction transistor (BJT) including a first base, a first collector, and a first emitter, the first collector connected to a first supply voltage node and a second BJT including a second base, a second collector, and a second emitter, the second collector connected to the first emitter at an output node. The circuit also includes a capacitor including a first capacitor terminal and a second capacitor terminal, the first capacitor terminal connected to the second emitter of the second BJT and the second capacitor terminal connected to a second supply voltage node. A current source device is also included that is connected in parallel with the capacitor.

公开(公告)号：US20240113716A1

公开(公告)日：2024-04-04

申请号：US17956576

申请日：2022-09-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Yogesh DARWHEKAR ,  Abhrarup BARMAN ROY ,  Subhashish MUKHERJEE ,  Peeyoosh MIRAJKAR

IPC: H03K21/08 ,  H03K17/687

CPC classification number: H03K21/08 ,  H03K17/6871

Abstract: In an example, a system includes an N divider coupled to an output of a low dropout regulator. The system also includes a load balancing circuit coupled to the N divider and configured to sink a load balancing current at the output of the low dropout regulator during one or more phases of the N divider. The system includes a switch coupled to the load balancing circuit and configured to connect the load balancing circuit to the output of the low dropout regulator during the one or more phases of the N divider.

公开(公告)号：US20210391866A1

公开(公告)日：2021-12-16

申请号：US17128791

申请日：2020-12-21

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Srinivas THEERTHAM ,  Jagdish CHAND ,  Yogesh DARWHEKAR ,  Subhashish MUKHERJEE ,  Jayawardan JANARDHANAN ,  Uday Kiran MEDA ,  Arpan Sureshbhai THAKKAR ,  Apoorva BHATIA ,  Pranav KUMAR

IPC: H03L7/23 ,  H03L7/099 ,  H03L7/085 ,  H03M1/66

Abstract: A frequency synthesizer includes a phase-locked loop (PLL). The PLL includes a first voltage-controlled oscillator (VCO) and a second VCO, each comprising an oscillator, a capacitor bank, and a bias circuit. The capacitor bank is configured to selectably adjust an output frequency of the oscillator. The bias circuit is configured to provide a bias current to the oscillator, and includes a current digital-to-analog converter (IDAC), and an amplifier coupled to the IDAC and configured to drive the oscillator.

公开(公告)号：US20200186403A1

公开(公告)日：2020-06-11

申请号：US16793486

申请日：2020-02-18

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Yogesh DARWHEKAR ,  Pranav KUMAR ,  Arpan THAKKAR ,  Naveen MAHADEV ,  Srikanth MANIAN

IPC: H04L27/00 ,  H04L27/38 ,  H04L27/152 ,  H04L27/148

Abstract: A receiver circuit includes a quadrature signal generator to generate an in-phase (I) signal and a quadrature (Q) signal from a local oscillator signal and an IQ phase sense and control circuit to generate a phase adjustment code responsive to a phase error between quadrature signals generated by a plurality of mixers. The receiver circuit also includes a phase corrector to adjust a phase difference between the I and Q signals from the quadrature signal generator to generate corrected I and Q signals to be provided to the plurality of mixers.

公开(公告)号：US20170302310A1

公开(公告)日：2017-10-19

申请号：US15486909

申请日：2017-04-13

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Subhashish MUKHERJEE ,  Yogesh DARWHEKAR ,  Nagaraj V. DIXIT ,  Raghu GANESAN

IPC: H04B1/10 ,  H04B17/318 ,  H04B17/345 ,  H04B1/16 ,  H03L7/099 ,  H03G3/20

CPC classification number: H04B1/10 ,  H03G3/3052 ,  H03J7/00 ,  H03L7/087 ,  H03L7/099 ,  H03L7/18 ,  H04B1/123 ,  H04B1/16 ,  H04B17/318

Abstract: At least some embodiments are directed to a receiver system that comprises a first oscillation module configured to provide oscillating signals of differing frequencies and a second oscillation module configured to provide other oscillating signals of the differing frequencies. The second oscillation module is configured to produce less noise than the first oscillation module. A controller is coupled to the first and second oscillation modules and configured to selectively activate and deactivate each of the first and second oscillation modules based on signal strengths of primary signals received via a wireless medium and based on signal strengths of interference signals received via the wireless medium.