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请问DAC5571需要接什么外围电路吗。有没有什么例程，
不需要，如果想要DAC的供电电压和msp430一致并且驱动单个芯片的话，直接接I2C的两根线就OK了。如果想要精度高点，DAC需要单独供电。
官网有提供DAC5571的评估模块，你可以参考它的电路
http://www.ti.com.cn/tool/cn/dac5571evm
