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DAC8803不能正常工作!求指教。

Other Parts Discussed in Thread: DAC8803

请问一下,如果把DAC8803 的LDAC管脚接地,其他SPI时序正常,DAC可以正常工作吗?如果能正常工作应该如何操作?
我现在是把LDAC管脚一直接地,时序按数据手册上的时序操作,但LDAC一直接地,DAC无法正常工作 ?在线坐等。

原理图见下图: