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AD5425有时不输出

Other Parts Discussed in Thread: DAC908

芯片是AD5425,用法是一直向芯片内打正弦波数据,切换参考电压,得到幅度不同的正弦波形。可是有时会出现输出的不是正弦波形,而是输出一段直流,波形和参考电压类似,这是为什么呢?请高手赐教!