Device and method for detecting high-speed differential signal
A high-speed differential and differential signal line technology, applied in the field of cables, can solve the problems of difficult operation, high price, not suitable for mass production testing, etc., to achieve the effect of improving production efficiency, good compatibility, and ensuring production delivery
Pending Publication Date: 2022-02-15
EVERPRO TECH COMPANY
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Problems solved by technology
[0004] For differential signal quality problems, measurement equipment testing (such as BERT code meter or oscilloscope) and functional equipment testing methods are usually used at present, but these methods are only suitable for research and development in laboratories, and they are expensive, difficult to operate, and Equipment replacement rate and other issues, so it is not suitable for mass production testing
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[0023]The principle and spirit of the present disclosure will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are given only to enable those skilled in the art to better understand and implement the present disclosure, rather than to limit the scope of the present disclosure in any way. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
[0024] figure 1 is an exemplary schematic diagram showing an existing bit error tester 100 . Such as figure 1 As shown in , the bit error tester 100 may include a signal generator 101 , a signal receiver 102 and a bit error calculation unit 103 . In the implementation scenario, the bit error tester 100 can be connected to both ends of the cable under test, and the cable under test transmits the high-speed differential signal sent by the signal generator ...
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The invention relates to a device for detecting a high-speed differential signal and a method thereof. The device comprises a signal generator used for sending the high-speed differential signal; a signal receiver used for receiving the high-speed differential signal; a switch control unit used for controlling connection or disconnection of the corresponding high-speed differential signal; and an error code calculation unit which is used for responding to the on state or the off state of the corresponding high-speed differential signal and calculating an error code in the high-speed differential signal correspondingly received by the signal receiver; and determining a short circuit or open circuit state of a P / N end of the high-speed differential signal according to the on state or the off state of the corresponding high-speed differential signal and the error code in the high-speed differential signal correspondingly received by the signal receiver. The device is advantaged in that the single-end short circuit or open circuit condition of the corresponding high-speed differential signal can be effectively detected, and a quality problem of the cable can be accurately judged.
Description
technical field [0001] The present disclosure generally relates to the field of cable technology. More particularly, the present disclosure relates to an apparatus, method, and computer-readable storage medium for detecting high-speed differential signals. Background technique [0002] Differential transmission is a signal transmission technology, which is different from the traditional transmission mode of one signal line and one ground line. The aforementioned differential transmission is to transmit signals on the two lines, and the transmitted signals on the two lines are differential signals, and the differential signals have the same amplitude and opposite phases. In the application scenario, the signal receiving end usually compares the difference of the differential signal voltage to judge the logic state sent by the sending end. It can be appreciated that the differential signal can control the "reference" voltage, so that small signals can be easily identified, a...
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IPC IPC(8): G01R31/52G01R31/54
CPCG01R31/52G01R31/54
Inventor 马燕江辉邱宇为
Owner EVERPRO TECH COMPANY