Multi-channel synchronizing signal generator based on field program gate array (FPGA) and AD9959

Abstract

The invention relates to a multi-channel synchronizing signal generator based on field program gate array (FPGA) and an AD9959. The multi-channel synchronizing signal generator comprises a remote personal computer (PC) (1), a storage module (2), a clock generator (3), an FPGA chip (12), a signal preprocessing module (9), a universal interface module (10), a digital frequency generation module (11) and a user-operated front panel (13), wherein the FPGA chip (12) is respectively connected with the remote PC (1), the storage module (2), the clock generator (3), the signal preprocessing module (9), the universal interface module (10), the digital frequency generation module (11) and the user-operated front panel (13); and the signal preprocessing module (9) is connected with the digital frequency generation module (11). Compared with the prior art, the multi-channel synchronizing signal generator has the advantages of simple circuit structure, high application value and the like.

Description

technical field [0001] The invention relates to a synchronous signal generator, in particular to a multi-channel synchronous signal generator based on FPGA and AD9959. Background technique [0002] Signal generators, also known as signal sources or oscillators, are instruments used to generate various electronic signals, and are widely used in production practice and the field of science and technology. In practical applications, sometimes the output frequency of the signal source needs to be agile, the frequency range should be as wide as possible, and multi-channel signal output can be realized. It is very important, and for systems with high synchronization performance requirements, the design requirements required for synchronizing each channel must be met. For traditional signal generators, the output frequency range is narrow and the channel is single, which cannot meet the requirements of multi-channel synchronization. However, in some applications, the outputs of m...

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Problems solved by technology

[0003] Most of the existing signal generators use single-chip microcomputer as the control unit, and cannot realize multi-channel synchronous output and precise phase control function

And the phase error of the output signal caused by the circuit layout and wiring, and the delay time difference between different chips is not considered.

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