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1. US10651869 - Signed-RFDAC architectures enabling wideband and efficient 5G transmitters

Office United States of America
Application Number 16364891
Application Date 26.03.2019
Publication Number 10651869
Publication Date 12.05.2020
Grant Number 10651869
Grant Date 12.05.2020
Publication Kind B1
IPC
H03M 1/48
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING, DECODING OR CODE CONVERSION, IN GENERAL
1Analogue/digital conversion; Digital/analogue conversion
12Analogue/digital converters
48Servo-type converters
H03M 1/66
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING, DECODING OR CODE CONVERSION, IN GENERAL
1Analogue/digital conversion; Digital/analogue conversion
66Digital/analogue converters
H04B 1/403
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
40Circuits
403using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
H04B 1/401
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
40Circuits
401for selecting or indicating operating mode
H04B 1/04
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
02Transmitters
04Circuits
CPC
H04B 1/0475
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
02Transmitters
04Circuits
0475with means for limiting noise, interference or distortion
H03M 1/665
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
MCODING; DECODING; CODE CONVERSION IN GENERAL
1Analogue/digital conversion; Digital/analogue conversion
66Digital/analogue converters
665with intermediate conversion to phase of sinusoidal or similar periodical signals
H04B 1/401
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
40Circuits
401for selecting or indicating operating mode
H04B 1/403
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
40Circuits
403using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
Applicants Intel IP Corporation
Intel Corporation
Inventors Davide Ponton
Michael Kalcher
Alan Paussa
Edwin Thaller
Franz Kuttner
Daniel Gruber
Agents Eschweiler & Potashnik, LLC
Title
(EN) Signed-RFDAC architectures enabling wideband and efficient 5G transmitters
Abstract
(EN)

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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