Dynamic assignment with phase-preserving clipping technique for digital transmitters and power amplifiers

US12155522B2 · kind B2 · utility

Assignee

• Avago Technologies International Sales Pte. Limited · SG

Inventors

• Mohyee Mikhemar · Irvine, US
• Alvin Lai Lin · Londonderry, GB
• Andrew J. Blanksby · Orange, US
• Sudharshan Srinivasan · Fremont, US
• Ahmed Sayed · Berlin, DE
• Wei-Hong Chen · Irvine, US
• Arya Behzad · Poway, US

Key dates

• Filing date: Apr 10, 2023
• Grant date: Nov 26, 2024
• Expiry date: Apr 10, 2043

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B1/0028
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

A transmitter includes a first digital-to-analog converter (DAC) circuit consisting of a first set of unary cells to mix a first set of digital input data with a first clock signal. A second DAC circuit includes a second set of unary cells to mix a second set of digital input data with a second clock signal. A third circuit provides signals to the first DAC circuit and the second DAC circuit to implement an assignment scheme to assign either an in-phase (I) component or a quadrature (Q) component to the first set of unary cells and the second set of unary cells. Based on the assignment scheme, the first set of digital input data include I-data and Q-data, and the second set of digital input data include I-data and Q-data.