A system and method for realizing analog signal sampling based on high-speed bus
A high-speed bus, analog signal technology, applied in the field of analog signal sampling based on high-speed bus, can solve the problem of incapable number of bits, expansion, high price, and achieve the effect of flexible bit width expansion, convenient bit width, and convenient adjustment
Active Publication Date: 2017-07-28
江苏国电南自海吉科技有限公司 +1
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Problems solved by technology
[0007] The price of the existing A / D converter is generally relatively high. The A / D converter is a well-made chip, and each parameter is fixed. This will cause the bit width of the output digital signal to be generally determined, and cannot be adjusted according to the needs. Adjustment, and the expansion of the number of digits is not possible; and its judgment level is also determined, and different A / D converters should be selected for different analog signals, which cannot be widely applied to various analog signals
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[0050] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0051] figure 1 It is a system block diagram of Embodiment 1 of the present invention, a system for realizing analog signal sampling based on a high-speed bus, including an analog signal receiving module 1, a sampling clock signal generating module 2, a high-speed bus sampling module 3 and a digital signal output module 4;
[0052] Described analog signal receiving module 1, its output end is connected with the input end of high-speed bus sampling module 3, is used for sending analog signal in the high-speed bus sampling module 3;
[0053] Described sampling clock signal generation module 2, its output end is connected with the input end of high-speed bus sampling module 3, and it is used for generating sampling clo...
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The invention relates to a system and method for realizing analog signal sampling based on a high-speed bus, including an analog signal receiving module, a high-speed bus sampling module and a digital signal output module, and may also include a level adjustment module, a differential comparison module, and an operational amplification module. Each module described above is connected to each other; the high-speed bus sampling module uses a digital bus to complete the digital processing of the analog signal under the beat of the bus sampling clock; in addition, the level adjustment module and the differential comparison module can be easily set and filter the DC reference, and even be used for superimposing special signal sampling; the operational amplification module can realize the proportional control of the sampling and quantization voltage; the present invention uses a high-speed bus to convert the analog signal into a digital signal, which has high speed, low cost, and convenient adjustment , The characteristics of flexible expansion are convenient for subsequent digital signal processing.
Description
technical field [0001] The invention relates to analog signal sampling, in particular to a system and method for realizing analog signal sampling based on a high-speed bus. Background technique [0002] With the rapid development of digital electronic technology, various digital devices, especially digital electronic computers, are widely used and penetrate into almost all fields of the national economy. A digital computer can only process digital signals, and the result of the processing is still a digital quantity. When it is used to process signals in nature, the variables to be processed are often continuously changing physical quantities, such as temperature, pressure, speed, etc. are all analog quantities. The analog quantities of these non-electronic signals must first be converted into voltage signals by sensors, and then converted into digital quantities before they can be sent to various digital signal processing systems for processing. [0003] Signal digitizatio...
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IPC IPC(8): H03M1/54
Inventor 尹红彬贺枫王晓春李志军孙胜国王强
Owner 江苏国电南自海吉科技有限公司