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Power amplifier unit and related device and digital predistortion correction method

A technology for power amplifiers and amplifiers, applied in the direction of improving amplifiers to reduce nonlinear distortion, etc., can solve problems such as clock frequency cannot be realized, and achieve the effect of simplifying the correction process

Inactive Publication Date: 2018-03-16
MEDIATEK SINGAPORE PTE LTD SINGAPORE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such clock frequencies are not achievable in practical CMOS and / or user communication units

Method used

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  • Power amplifier unit and related device and digital predistortion correction method
  • Power amplifier unit and related device and digital predistortion correction method
  • Power amplifier unit and related device and digital predistortion correction method

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Embodiment Construction

[0127] Certain terms are used in the description and claims to refer to particular elements. Those of ordinary skill in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. "Includes" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". In addition, the term "coupled" here includes any direct and indirect electrical connection means, therefore, if it is described in the text that a first device is coupled to a second device, it means that the first device can be directly electrically connected to the The second device, or indirectly electrically connected to the second device through other devices or connection means.

[0128] The present invention provides radio ...

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Abstract

The present invention provides a power amplifier unit and related devices and a digital pre-distortion correction method. The power amplifier unit includes a first input for receiving an in-phase control signal; a second input for receiving a quadrature control signal ; an input stage for outputting a drive signal based on at least part of the received in-phase control signal and the quadrature control signal; and an output stage for receiving from an input the drive signal output by the input stage, And generate an output signal of the power amplifier unit in response to the received driving signal. With the present invention, the correction process can be simplified since the truncation in the correction process can reduce the allowable number of codewords.

Description

technical field [0001] The disclosed embodiments of the present invention are related to a power amplifier unit, a power amplifier module, a communication unit, a radio frequency transmitter architecture and a method for performing digital pre-distortion correction in a radio frequency architecture. Background technique [0002] With the continuous advancement of deep submicron CMOS (complementary metal oxide semiconductor) technology, digital circuits have become smaller and more power efficient. However, deep submicron CMOS processes are not particularly effective for scaling analog circuits. Therefore, in many devices such as radio frequency (RF) transmitters, it is always desirable to move as much as possible (for example with the help of digital signal processing algorithms) in order to gain more benefits from using deep submicron CMOS processes. except analog components or analog circuits. [0003] Additionally, many conventional RF transmitters use linear power ampl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03F1/32
Inventor 邓志明彭俊贤
Owner MEDIATEK SINGAPORE PTE LTD SINGAPORE
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