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：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：US20250088148A1

公开(公告)日：2025-03-13

申请号：US18399974

申请日：2023-12-29

Applicant: Texas Instruments Incorporated

Inventor： Ajay Kumar REDDY ,  Arpan THAKKAR ,  Peeyoosh MIRAJKAR ,  Bichoy BAHR

IPC: H03B5/36 ,  H03K5/00

Abstract: A circuit includes a resonator, a transistor pair, and a common-mode feedback circuit. The transistor pair is cross-coupled across the resonator. The common-mode feedback circuit is coupled to the transistor pair. The common-mode feedback circuit includes first and second degeneration cells. The second degeneration cell is connected in parallel with the first degeneration cell. The second degeneration cell is configured to switchably vary a current flow through the transistor pair.