A high-speed serial transceiver interface circuit

An interface circuit and high-speed serial technology, which is applied in the field of serial communication, can solve the problems of insufficient isolation voltage, low withstand voltage, and capacitive isolation mode is susceptible to external electric field interference, so as to improve anti-interference ability and improve transmission Effects of increased distance and isolation voltage

Active Publication Date: 2020-05-12
YUN ZHI TECH CO LTD OF SHENZHEN CITY
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Problems solved by technology

[0002] The original serial communication device needs to use the isolation circuit to realize the effect of isolation voltage. The original isolation circuit uses the capacitive isolation method, but due to the high-speed transmission characteristics of the serial communication SERDES, it is necessary to choose a capacitor with low withstand voltage and low loss angle. Therefore, the isolation voltage of most occasions cannot meet the requirements, and the application is limited, and the original capacitance isolation method is easily disturbed by the external electric field

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  • A high-speed serial transceiver interface circuit
  • A high-speed serial transceiver interface circuit
  • A high-speed serial transceiver interface circuit

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[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0028] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the descrip...

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Abstract

An interface circuit of a high-speed serial transceiver comprises an FPGA chip with serial communication drive, the FPGA chip is connected with an interface, and the interface circuit is characterizedin that an output port and an input port of the FPGA chip are connected with a first isolation circuit and a second isolation circuit respectively. By the adoption of the isolation circuits and namely a mutual inductor isolation mode, isolation voltage can be greatly increased; meanwhile, anti-interference capacity is promoted, the interface circuit is prone to being interfered by an external electric field in an original capacitor isolation mode, after the original capacitor isolation mode is changed into the mutual inductor isolation mode, original coaxial cable transmission media are changed into twisted-pair media, and transmission distance is greatly increased.

Description

technical field [0001] The invention relates to the field of serial communication, in particular to a high-speed serial transceiver interface circuit. Background technique [0002] The original serial communication device needs to use the isolation circuit to realize the effect of isolation voltage. The original isolation circuit uses the capacitive isolation method, but due to the high-speed transmission characteristics of the serial communication SERDES, it is necessary to choose a capacitor with low withstand voltage and low loss angle. Therefore, the isolation voltage in most occasions cannot meet the requirements, and the application is limited, and the original capacitance isolation method is easily disturbed by the external electric field. Contents of the invention [0003] In order to solve the technical problem that the isolation voltage of the capacitive isolation mode of the high-speed serial transceiver in the prior art cannot meet the requirements, the present...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/42
Inventor 李刚卞荣军
Owner YUN ZHI TECH CO LTD OF SHENZHEN CITY
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