Double-channel high-speed analog digital signal collecting and processing board card
A digital signal, high-speed analog technology, applied in the direction of electrical digital data processing, instruments, etc., can solve problems such as size or interface mismatch, and achieve the effect of ensuring accuracy and high efficiency
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[0009] The present invention will be further described below in conjunction with accompanying drawing:
[0010] refer to figure 1 , this design is a high-speed analog-digital signal acquisition and processing and data Storage and processing board, supports two channels of intermediate frequency synchronous analog-digital signal sampling, supports up to 250MSps analog-digital sampling rate, and supports external sampling clock.
[0011] This design processes digital signals through FPGA and DSP, and imports the data into high-speed dynamic random access memory (hereinafter referred to as DDR3SDRAM) for storage.
[0012] It uses Ethernet interface (that is, RJ45 interface), PCI-express connector and USB interface to exchange data with the outside.
[0013] Provide DDR3SDRAM and other kinds of memory for data storage.
[0014] The circuit design principle of the present invention: two analog signals are respectively connected to two differential amplifiers by SMA interface 1 a...
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