Invention Grant
US09431972B1 Apparatus and methods for digital predistortion 有权
数字预失真的装置和方法

Apparatus and methods for digital predistortion
Abstract:
The present disclosure provides advantageously flexible and effective methods, circuits and systems for digital predistortion. In one embodiment, a predistortion component circuit includes multiple configurable delay line pairs and corresponding configurable look-up tables. Each configurable delay line pair includes a first delay line for delaying an input data signal to provide a delayed input and a second delay line for delaying an input magnitude signal to provide a delayed input magnitude. Each configurable look-up table receives the delayed input magnitude from, and outputs a look-up value for, an associated delay line pair of the plurality of configurable delay line pairs. Other embodiments, aspects and features are also disclosed herein.
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