Controllable high-speed multi-channel signal acquisition control circuit system and control method thereof

Abstract

The invention provides a controllable high-speed multi-channel signal acquisition control circuit system. The system comprises an FPGA (field programmable gate array), wherein the FPGA is connected with an FOT (fiber optical transceiver) to realize communication with a host computer; the FPGA is connected with a DAC (digital-analog converter) chip to output analog signals for control or driving; the FPGA is connected with a plurality of AD (analog-digital) conversion chips to realize analog data conversion of multiple channels; the FPGA is connected with a reserved control port for an extending function. The controllable high-speed multi-channel signal acquisition control circuit system meets the work requirement for synchronous continuous sampling of a large quantity of analog signal channels, solves the problem of resource waste caused by repetitive design of a common high-speed multi-channel signal acquisition control circuit system, shortens the design time for a multi-channel signal acquisition circuit and is applicable to signal acquisition work on various occasions.

Description

technical field [0001] The invention belongs to the technical field of circuit design, and discloses a controllable high-speed multi-channel signal acquisition control circuit system and a control method thereof. Background technique [0002] In some fields such as acoustics and electromagnetic imaging that do not require very high signal acquisition frequency (acquisition frequency is less than the range of MSPS (Million Samples per Second, conversion rate)), it is often necessary to synchronize a large number of analog signal channels Sampling work. Whether a signal acquisition and control circuit system with a wide range of applications and flexible settings for acquisition channels and triggers can be designed will play a decisive role in the progress of the entire scientific research project. [0003] Most of the channels of analog data acquisition boards on the market are 8 channels, 12 channels or 16 channels, and the sampling data bit width rarely reaches 24 bits. ...

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Problems solved by technology

[0004] In view of the defects in the existing technology, in order to realize the working requirement of synchronous and uninterrupted sampling of a large number of analog signal channels, solve the problem of waste of resources caused by the repetitive design of the commonly used high-speed multi-channel signal acquisition control circuit system, shorten the multi-channel signal The design time of the acquisition circuit makes it suitable for signal acquisition work in many different occasions. The present invention designs a controllable high-speed multi-channel signal acquisition control circuit system

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