公开(公告)号：US12265146B2

公开(公告)日：2025-04-01

申请号：US18159413

申请日：2023-01-25

Applicant: Infineon Technologies AG

Inventor： Giovanni Boi ,  Fabio Padovan ,  Luigi Grimaldi ,  Dmytro Cherniak

IPC: G01R35/00 ,  G01R19/04

Abstract: A calibration circuit may include a calibration signal generator configured to receive an oscillator signal provided by an oscillator and generate a calibration signal based on the oscillator signal. The calibration signal may be generated to have a predetermined amplitude. The calibration circuit may include a calibration peak detector configured to detect a peak amplitude of the calibration signal. The calibration circuit may include a logic circuit configured to calibrate a peak detector connected to the oscillator based at least in part on the peak amplitude of the calibration signal.

公开(公告)号：US12149252B2

公开(公告)日：2024-11-19

申请号：US18064823

申请日：2022-12-12

Applicant: Infineon Technologies AG

Inventor： Luigi Grimaldi ,  Dmytro Cherniak ,  Fabio Padovan ,  Giovanni Boi

IPC: H03L7/081 ,  H03L7/107 ,  H03L7/23

Abstract: A digital phase-locked loop (DPLL) may include a delta-sigma modulator (DSM). The DSM may include a delay component configured to perform noise shaping of a quantization error introduced by the DSM. The DSM may include a noise transfer function (NTF) component configured to perform filtering of the quantization error introduced by the DSM. The DSM may include an adjustment transfer function (ATF) component configured to cause the filtering of the quantization error to be applied on top of the noise shaping such that an impact of the NTF component on the noise shaping is reduced.

公开(公告)号：US20220329206A1

公开(公告)日：2022-10-13

申请号：US17227755

申请日：2021-04-12

Applicant: Infineon Technologies AG

Inventor： David Seebacher ,  Matteo Bassi ,  Dmytro Cherniak ,  Fabio Padovan

IPC: H03F1/02 ,  H03F3/24

Abstract: In accordance with an embodiment, a method for operating a millimeter-wave power amplifier including an input transistor having an output node coupled to a load path of a cascode transistor includes: receiving a millimeter-wave transmit signal at a control node of the input transistor; amplifying the millimeter-wave transmit signal to form an output signal; providing the output signal to a load coupled to an output node of the cascode transistor; and adjusting a first DC bias current of the input transistor to form a substantially constant second DC bias current of the cascode transistor.

公开(公告)号：US11196382B1

公开(公告)日：2021-12-07

申请号：US17064378

申请日：2020-10-06

Applicant: Infineon Technologies AG

Inventor： Fabio Padovan ,  Matteo Bassi ,  Giovanni Boi ,  Dmytro Cherniak ,  Luigi Grimaldi

IPC: H03B5/12

Abstract: An oscillator includes: a first inductor; and a programmable capacitor bank coupled between a first terminal of the first inductor and a second terminal of the first inductor, where the programmable capacitor bank includes a plurality of cells concatenated together, where each cell of the plurality of cells includes a first node, a second node, a third node, a second inductor, and a programmable capacitor, where the second inductor is coupled between the first node and the third node, and the programmable capacitor is coupled between the third node and the second node, where a first inductance of the first inductor is larger than a sum of the inductances of the second inductors of the programmable capacitor bank.

公开(公告)号：US20210025924A1

公开(公告)日：2021-01-28

申请号：US16520978

申请日：2019-07-24

Applicant: Infineon Technologies AG

Inventor： Matteo Bassi ,  Giovanni Boi ,  Dmytro Cherniak ,  Fabio Padovan

IPC: G01R19/04 ,  H03B5/12

Abstract: A calibration circuit for calibrating a peak detector configured to detect a signal peak amplitude of an oscillator, including: a calibration oscillator configured to be supplied by at least two different supply voltages to generate respective calibration signals; a calibration peak detector configured to detect a calibration signal peak amplitude of each of the calibration signals; and a logic circuit configured to calibrate the peak detector based on the detected calibration signal peak amplitudes.

公开(公告)号：US20190158022A1

公开(公告)日：2019-05-23

申请号：US15820029

申请日：2017-11-21

Applicant: Infineon Technologies AG

Inventor： Vadim Issakov ,  Fabio Padovan ,  Dmytro Cherniak

IPC: H03B5/12

Abstract: In accordance with an embodiment, a method of operating a voltage controlled oscillator (VCO) that having a VCO core coupled to a filtered current source includes setting an oscillation frequency of the VCO core based on a tuning signal received at a tuning signal input; and setting a resonant frequency of the filtered current source based on the received tuning signal using a tuning circuit having an input directly connected to the tuning signal input