Data signal detecting device, MIPI RFFE equipment and system.

Abstract

The embodiment of the invention discloses a data signal detecting device, MIPI RFFE equipment and system. The data signal detecting device comprises two acquisition circuits and a selection and outputcircuit; a first input end of a first acquisition circuit is connected with a second input end of a second acquisition circuit, and a second input end of the first acquisition circuit is connected with a first input end of the second acquisition circuit; output ends of the two acquisition circuits are connected with an input end of the selection and output circuit; the acquisition circuits use signals received by the first input ends to collect signals received by the second input ends, and it is verified whether or not the collected signals meet characteristics of data signals; the selectionand output circuit selects and outputs the collected signals from the received collected signals and invalid signals. An MIPI RFFE slave device constructed by the data signal detecting device fully considers various abnormal conditions, so that the bus contention problem of two identical MIPI RFFE slave devices in the MIPI RFFE system can be effectively solved.

Description

technical field [0001] Embodiments of the present invention relate to computer hardware technologies, and in particular, to a data signal detection device, MIPI RFFE equipment and MIPI RFFE system. Background technique [0002] With the continuous development of technology and the increasing demand for RF front-end equipment such as power amplifiers, active antenna tuners, low noise amplifiers and antenna switches, etc., for equipment manufacturers, controlling all RF front-end equipment will be a A very big challenge. The MIPI (Mobile Industry Processor Interface, Mobile Industry Processor Interface) alliance develops standards for RFFE (RF Front-End. Radio frequency front-end) equipment, providing a set of bus interfaces for connecting multiple front-end devices, so that RF chips can be used. to conveniently control these RFFE devices. [0003] exist Figure 1a A schematic diagram of a prior art MIPI RFFE system is shown in . like Figure 1a As shown, the MIPIRFFE stand...

AI Technical Summary

Problems solved by technology

[0006] In the process of realizing the present invention, the inventor finds that the prior art has the following defects: the prior art detects whether SCLK and SDATA are interchanged by SSC, and if the bus has a burr or an indeterminate state when power-on, the SSC signal If distortion occurs, it is difficult to guarantee the accuracy of SCLK and SDATA identification

Insufficient consideration of abnormal conditions and poor recognition accuracy

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