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DS90UB933-Q1外围电路配置问题



TI933芯片做同轴输出时 DOUT- 12脚 配置 的C2处电容需选0.047uF 这个有选择此容值的理论依据吗 

实际使用中此处使用 100nF 220nF也并无异常 此处的电容选择是否有参考范围 可以做调整 为什么要选择47nf

麻烦您解答下 

谢谢