WIRELESS TRANSMITTER WITH BIAS CONTROL
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United States of America Patent
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Issued Date -
Aug 22, 2024
app pub date -
Nov 28, 2023
filing date -
Feb 20, 2023
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Abstract
Certain aspects of the present disclosure generally relate to electronic circuits, and more particularly, to wireless transmitters. One example apparatus generally includes: an in-phase direct-current (DC) level shifter; a quadrature DC level shifter; an in-phase voltage-to-current (V2I) converter having an input coupled to an output of the in-phase DC level shifter; a quadrature V2I converter having an input coupled to an output of the quadrature V2I converter; a bias control circuit having inputs coupled to the in-phase V2I converter and the quadrature V2I converter, an output of the bias control circuit being coupled to at least one of the in-phase DC level shifter or the quadrature DC level shifter; an in-phase mixer having an input coupled to an output of the in-phase V2I converter; and a quadrature mixer having an input coupled to an output of the quadrature V2I converter.
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