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1.发明授权公开(公告)号：US12261622B2
公开(公告)日：2025-03-25
申请号：US17358152
申请日：2021-06-25
Applicant: Intel Corporation
Inventor： Michael Kalcher , Daniel Gruber , Martin Clara
Abstract: Circuitry for digital-to-analog conversion is provided. The circuitry includes a driver circuit and a weighting resistor circuit coupled to an output of the driver circuit. The weighting resistor circuit includes a first resistive sub-circuit coupled to the output of the driver circuit and an intermediate node. The weighting resistor further includes a second resistive sub-circuit coupled to the intermediate node and a common node. Further, the weighting circuit includes a third resistive sub-circuit coupled to the intermediate node and an output of the circuitry. The resistivity of the second resistive sub-circuit is equal to or smaller than the resistivity of the first resistive sub-circuit.
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公开(公告)号：US20250007279A1
公开(公告)日：2025-01-02
申请号：US18215033
申请日：2023-06-27
Applicant: Intel Corporation
Inventor： Susanne Heber , Daniel Gruber , Krzysztof Domanski , Martin Clara
IPC: H02H9/04
Abstract: An integrated circuit device includes a signal pad, an inductor coupled in series with the signal pad, and an electrostatic discharge (ESD) protection circuit distributed before and after the inductor to provide ESD protection for an ESD event on the signal pad. Other examples are disclosed and claimed.
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公开(公告)号：US10938404B1
公开(公告)日：2021-03-02
申请号：US16728163
申请日：2019-12-27
Applicant: Intel Corporation
Inventor： Ramon Sanchez , Kameran Azadet , Martin Clara , Daniel Gruber
Abstract: A digital-to-analog converter is provided. The digital-to-analog converter comprises an input configured to receiving a first digital control code for controlling a plurality of digital-to-analog converter cells. Further, the digital-to-analog converter comprises a code converter circuit configured to converter the first digital control code to a second digital control code. Further, the digital-to-analog converter comprises a shift code generation circuit configured to generate a shift code based on a code difference between the first digital control code and a third digital control code. The digital-to-analog converter additionally comprises a bit-shifter circuit configured to bit-shift the second digital control code based on the shift code in order to obtain a modified second digital control code. The digital-to-analog converter comprises a cell activation circuit configured to selectively activate one or more of the plurality of digital-to-analog converter cells based on the modified second digital control code. Each activated digital-to-analog converter cell is configured to output a respective cell output signal. Further, the digital-to-analog converter comprises an output configured to output an analog output signal based on the cell output signals.
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公开(公告)号：US10651869B1
公开(公告)日：2020-05-12
申请号：US16364891
申请日：2019-03-26
Applicant: Intel IP Corporation , Intel Corporation
Inventor： Davide Ponton , Michael Kalcher , Alan Paussa , Edwin Thaller , Franz Kuttner , Daniel Gruber
Abstract: A radio frequency digital-to-analog converter (RFDAC) circuit includes an RFDAC array circuit including an array of cells arranged into a plurality of segments. Each segment of the plurality of segments is configured to process input data signals. The RFDAC array circuit is configured to process an input data based on activating a set of segments of the plurality of segments, forming a set of active segments, and when the sign of the input data is changed, deactivate a partially active segment of the set of active segments and activate a sign change segment within the RFDAC array circuit. The sign change segment includes a segment within the plurality of segments of the RFDAC array circuit that is different from the set of active segments.
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公开(公告)号：US11962320B2
公开(公告)日：2024-04-16
申请号：US17753917
申请日：2019-12-23
Applicant: Intel Corporation
Inventor： Kameran Azadet , Martin Clara , Daniel Gruber , Albert Molina , Hundo Shin
CPC classification number: H03M1/1071 , G01R31/2856 , G01R31/3187 , G01R31/26 , H03M1/0854 , H03M1/462
Abstract: A semiconductor chip providing on-chip self-testing of an Analog-to-Digital Converter, ADC, implemented in the semiconductor chip is provided. The semiconductor chip comprises the ADC and a Digital-to-Analog Converter, DAC, configured to generate and supply a radio frequency test signal to the ADC via a supply path. The ADC is configured to generate digital output data based on the radio frequency test signal. The semiconductor chip further comprises a reference data generation circuit configured to generate digital reference data. Additionally, the semiconductor chip comprises a comparator circuit configured to compare the digital output data to the digital reference in order to determine error data.
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Patent Agency Ranking
公开(公告)号：US20210409065A1
公开(公告)日：2021-12-30
申请号：US16912741
申请日：2020-06-26
Applicant: Intel Corporation
Inventor： Daniel Gruber , L. Mark Elzinga , Martin Clara
Abstract: The present disclosure relates to a concept for a transformer, a transmitter circuit, a semiconductor chip, a semiconductor package, a base station, a mobile device and a method for a radio frequency transmitter. The transformer for a radio frequency transmitter circuit comprises a primary coil and a secondary coils, which are configured to receive an input signal and to provide an output signal, and a ternary coil configured to provide a feedback signal.
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公开(公告)号：US11171663B2
公开(公告)日：2021-11-09
申请号：US16833729
申请日：2020-03-30
Applicant: Intel Corporation
Inventor： Daniel Gruber , Ramon Sanchez , Kameran Azadet , Martin Clara
Abstract: A digital-to-analog converter is provided. The digital-to-analog converter includes a first plurality of digital-to-analog converter cells configured to generate a first analog signal. Further, digital-to-analog converter includes a second plurality of digital-to-analog converter cells configured to generate a second analog signal. The first analog signal and the second analog signal form a differential signal pair. Further, the digital-to-analog converter includes a transmission line transformer comprising a first input node coupled to the first plurality of digital-to-analog converter cells, a second input node coupled to the second plurality of digital-to-analog converter cells, and a first output node. The transmission line transformer is configured to present a first impedance at the first and second input nodes and to present a second impedance at the first output node.
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公开(公告)号：US10715185B1
公开(公告)日：2020-07-14
申请号：US16369317
申请日：2019-03-29
Applicant: Intel Corporation
Inventor： Daniel Gruber , Ramon Sanchez , Kameran Azadet , Martin Clara
Abstract: A digital-to-analog conversion system is provided. The digital-to-analog conversion system includes a digital-to-analog converter configured to receive a pre-distorted digital signal from a digital circuit, and to generate an analog signal based on the pre-distorted digital signal. Further, the digital-to-analog conversion system includes a feedback loop for providing a digital feedback signal to the digital circuit. The feedback loop includes an analog-to-digital converter configured to generate the digital feedback signal based on the analog signal, and wherein a sample rate of the analog-to-digital converter is lower than a sample rate of the digital-to-analog converter.
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公开(公告)号：US10608661B1
公开(公告)日：2020-03-31
申请号：US16369262
申请日：2019-03-29
Applicant: Intel Corporation
Inventor： Daniel Gruber , Ramon Sanchez , Kameran Azadet , Martin Clara
Abstract: A digital-to-analog converter is provided. The digital-to-analog converter includes a first plurality of digital-to-analog converter cells configured to generate a first analog signal. Further, digital-to-analog converter includes a second plurality of digital-to-analog converter cells configured to generate a second analog signal. The first analog signal and the second analog signal form a differential signal pair. Further, the digital-to-analog converter includes a transmission line transformer comprising a first input node coupled to the first plurality of digital-to-analog converter cells, a second input node coupled to the second plurality of digital-to-analog converter cells, and a first output node. The transmission line transformer is configured to present a first impedance at the first and second input nodes and to present a second impedance at the first output node.
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公开(公告)号：US12170526B2
公开(公告)日：2024-12-17
申请号：US18054628
申请日：2022-11-11
Applicant: Intel Corporation
Inventor： Daniel Gruber , Kameran Azadet , Martin Clara , Marc Jan Georges Tiebout
Abstract: A semiconductor device comprising at least one transmit path is provided. The transmit path comprises an input node for receiving a digital baseband signal. Further, the transmit path comprises digital mixer circuitry coupled to the input node and configured to generate an upconverted digital baseband signal by upconverting a frequency of the digital baseband signal. Additionally, the transmit path comprises Digital-to-Analog Converter (DAC) circuitry coupled to the digital mixer circuitry and configured to generate an analog radio frequency signal based on the upconverted digital baseband signal. The transmit path comprises first analog mixer circuitry coupleable to an output of the DAC circuitry, and second analog mixer circuitry coupleable to the output of the DAC circuitry. Further, the transmit path comprises a first output node coupleable to an output of the first analog mixer circuitry, and a second output node coupleable to an output of the second analog mixer circuitry.
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