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Power amplifier unit, related device, and digital predistortion calibration method

A power amplifier and amplifier technology, which is applied in the direction of improving amplifiers to reduce nonlinear distortion, etc., can solve problems such as the inability of clock frequency to be realized, and achieve the effect of simplifying the correction process

Inactive Publication Date: 2014-12-03
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, related device, and digital predistortion calibration method
  • Power amplifier unit, related device, and digital predistortion calibration method
  • Power amplifier unit, related device, and digital predistortion calibration 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, related devices, and a digital predistortion calibration method. The power amplifier unit comprises a first input, for receiving an in-phase control signal; a second input, for receiving a orthogonal control signal; an input stage, for outputting a driving signal according to at least part of the received in-phase control signal and the orthogonal control signal; and an output stage, for receiving the driving signal outputted by the input stage from an input, and generates an output signal of the power amplifier unit so as to response to the receiving driving signal. According to the power amplifier unit, the related device, and the digital predistortion calibration method, allowed code numbers can be reduced through cutting in the calibration process, so that the calibration process is simplified.

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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IPC IPC(8): H03F1/32
Inventor 邓志明彭俊贤
Owner MEDIATEK SINGAPORE PTE LTD SINGAPORE
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