In this paper,the hardware circuit and software programming function are combined to design a new signal generator implementation method,with FPGA as the main control core,by building waveform reconstruction circuit,analog switch selection circuit,rectangular wave output control circuit to achieve 32 analog signal parallel output.Using ADG333A analog switch can greatly reduce the edge time of square wave signal output.The experiment results show that the signal generator has the advantages of high output precision,wide output frequency,stable and reliable signal,and has been widely used in the ground unit test of aerospace equipment.
Key words
FPGA /
signal generator /
ADG333A
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