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DAC5662 无法输出2.5KHz 信号

Other Parts Discussed in Thread: DAC5662

您好,我使用FPGA为DAC5662提供数字输入,当输出的频率是3M时,信号是正常的,但是我无法输出2.5KHz的信号。请问您分析问题有可能在什么地方呢?我直接把示波器跨接在DAC的 IA1 和 IA2 上,当输出是3M时,能够看到信号,输出2.5KHz时,只能看到噪声。