ASIC (application-specific integrated circuit) chip applicable to low-voltage power line carrier communication

Abstract

The invention discloses an ASIC (application-specific integrated circuit) chip applicable to low-voltage power line carrier communication. The ASIC chip comprises a power management module, an input / output state selection module, a frequency selection module, a three-way switching module, a linear amplification module, a filter module, a demodulation module, a frequency stabilization module, a power amplification module and a signal intensity detection module. The chip receives an FSK (frequency shift keying) spread spectrum modulation carrier signal transmitted by a peripheral circuit, and after the FSK spread spectrum modulation carrier signal is subjected to demodulation processing, the equivalent intensity values of a demodulation code element signal and an input signal are output to a MCU (master control unit); the chip receives an FSK spread spectrum modulation digital signal transmitted by the MCU, and after the FSK spread spectrum modulation digital signal is subjected to filtering processing, an FSK spread spectrum modulation analog signal is output to the peripheral circuit; and power supply of the chip can be controlled by the MCU. By using the ASIC chip disclosed by the invention, the board-level design of a system is reduced, the complexity and cost of system design are reduced, and the performance of low-voltage power line carrier communication can be effectively improved, thereby enhancing the application prospect of the low-voltage power line carrier communication technology.

Description

technical field [0001] The present invention relates to the field of low-voltage power line carrier communication, specifically refers to an application-specific integrated circuit chip suitable for low-voltage power line carrier communication, especially relates to a low-voltage power line carrier communication method suitable for industrial frequency synchronous zero-crossing time-sharing transmission. Integrated circuit chip. Background technique [0002] A large number of field data prove that it is completely feasible to use carrier signals to communicate on low-voltage power lines, but the demodulation circuit built with peripheral devices cannot meet the demodulation performance required by low-voltage power line carrier communication under high noise. Adjusting the chip for carrier communication will achieve better communication effects. [0003] The current demodulation chip needs to build a peripheral filter circuit to complete the function of filtering out noise ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an ASIC chip suitable for low-voltage power line carrier communication, so as to solve the poor consistency of peripheral filter circuits required by demodulation chips in the field of low-voltage power line carrier communication, and the inability to perform different carrier communication frequency point demodulation problem

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